I received this charger free for review, but after using it I would spend $40 to buy another if needed. I found that once I bought a BLF Q8 that the 2-cell charger was no longer keeping up with my charging needs.
I have recharged a bunch of cells this week. It took all sizes that I own, and charged them quickly and safely. The Protected Keeppower 18650 – 3200mAh cell is long for some chargers, but fit fine. It states that it fits the 21700 cells, but I do not have any so I could not confirm this. It fits the fat 26650 cells in all four bays.

If I filled all 4 slots then plugged it in, I had to be quick to choose the rate of charge. I found I was not always fast enough and the fourth slot defaulted to the lowest setting. Double clicking the button put it back into select mode, then I could choose the rate.
The way I found I prefer to use this charger was to plug it in then add one cell at a time, starting with the outside slots. That way I could leisurely choose the fastest rate for each.
The picture shows 3 Samsung 30 Q button tops with the outside ones charging at 3 amps and another at 2 amps for a total of 8 amps. If you use all 4 slots then the most you can do is 2 amps each slot.

The two outside slots show 3000mAh which is three times faster than my Xtar VP2.

You can see that in this picture that I am charging two 26650 batteries at 2000mAh and two 18650 at 100 mAh. I could have done all 4 at 2000mAh.

What I like is that you can mix it up and do each slot a different cell type and a different rate.
Here I have one NiMH eneloop and a mix of protected and unprotected cells charging at different speeds.

What made me want this was the charging fast speed you are never going to get from a USB charger. I found that I just really like the simple controls: It always seems to know what type of cell I am using, but I can override it if I wanted to. There is one button over each slot and I can choose the speed I want, changing it mid-charge if needed.

In writing this review I read the others and I wanted to link to what I consider the definative review and the last word in testing. HKJ review of this charger:
http://budgetlightforum.com/node/56695

Flashlight Charger Review

Folomov A1 Mini Magnetic Charger Review

A short review of the mini Folomov A1 charger/Power bank. There are a lots of single cell chargers around that also provide a powerbank feature but this one has a unique design and is does a good job!.

Firstly lets look at what you get. The product comes in small packaging or blister pack which describes some key features on the front side. The instructions are covered on the back of the packaging on a card that can be removed from the plastic cover.

Inside the packing is the charger and nothing else. It's a single unit that comprises of the main tiny body with cables for each terminal (+ and -) along with the two way USB connector.

The terminal leads are labeled in clear manner and contain a strong magnet, that appears to be a rare earth magnet/Neodymium. These easily and securely attach to battery terminals and wont slip off unless some force is applied.

The quality of the build is very good. The leads to the terminals are flexible but not so thin that they would be easily damaged.

The main body section is labeled clearly with the print that this charger can only be used for Li Ion batteries.

The charger is small in size and weight. Overall length is almost 21 cm, and it weighs only 21 Grams. This makes it a very compact charger or unit to use with a battery as a powerbank.

Below we see some examples of where the A1 is being used as a power bank. The left image is using a Folomov Protected 26650 battery and on the right a LG HE4 18650. The current measurements show up as one being 0.91A and the other 1.02A. As a power bank the charge rate appears to be around 1A depending on the cell. In both cases below the batteries were fully charged. In power bank mode the led on the A1 main unit remains lit up as blue.

Two examples below where the A1 is used as a battery charger. Whilst charging the LED on the A1 body flashes Green. Once the battery is fully charged the flashing ends and it remains permanently green.

The rated charge current is 1A. The current measured from the USB charger exceed 1A as per the images below. The charge current at the battery terminals was not measured however I'd expect that it's likely to be around 1A.

At the end of the charging the voltage of the LG HE4 was measured as 4.16V and the Folomov 26650 as 4.17V. Not quite 4.2V which would be ideal but close.

Sellers/Manufacturers Specs and Product Description

Summary

The Folomov A1 is a simply useful compact charger. It's small size and weight makes it a very compact device that can be used at times where batteries need to be charged or there is a need to use the power bank feature to charge phones when they are running low on charge.

Overall a very good compact charger.

Pros:

> Build Quality

> Power bank feature

> Very compact and light.

Cons:

> Doesn't fully charge batteries to 4.20V

Thanks to Folomov for providing this flashlight for review. No compensation received for this review other than the item for the review.

Key sites to see more about the Folomov Tour 5BM Flashlight

Folomov Home Site

Product at Amazon.com

Product at Amazon.uk

Facebook Link

Charger Basen BO-1





This is a fairly simple single cell LiIon charger from Basen.



It arrived in a cardboard box with a lot of specification on it.



The box contained the charger, a usb cable and a instruction sheet.



The charger is usb powered with a micro usb input.



There is only one button and a couple of leds. The button will change selected current, default is 0.5A.



During power on all the leds will shortly turn on. During charge the blue leds are animated and only one green led is on.



The specifications are on the bottom of the charger, but rather hard to read.



The charger uses the classic slider construction and will handle batteries from 28mm to 70.7mm, this will give problem with the longest protected cells.






The charger can handle up to 70mm long batteries,



Measurements

• Power consumption from usb when idle with no batteries is 18mA
  
• Below 0.3V the charger will not detect a battery
  
• Between 0.3 and 3V the charger will charge with low current
  
• Above 3V the charger will use full current.
  
• Will restart charging if voltage drops.
  
• Will restart charging if battery is inserted or power cycled.
  

Varta LCD Multi Charger 57671





This multi charger can be used for AA and AAA and handle up to 8 at a time. It can also be used as a usb charger.



I got the charger in a blister pack. The pack has a few specifications on it.



The pack contained the charger, a power supply and an instruction sheet.



The power connector is placed at the back of the charger. The input voltage is rather special at 5.4V 3A, no standard power pack can be used.



The user interface is a LCD display with 8 batteries on it.



The usb output is placed on the front.



The slots must be manually adjusted depending on the AA/AAA batteries. This setting is for 4 slots at a time.



Half the charger is for AAA, the other half for AA in this image.



The negative connection is steel springs.









Measurements charger

• When not powered it will discharge the battery with about 0.6mA
  
• Charge will restart charging after power loss, or battery insertion.
  
• Power consumption when idle is 0.7 watt
  
• Batteries must be charged in pairs.
  

• Usb output is coded Apple 0.5A
  

Hi BLF!

Some weeks ago, I received from Banggood the XTAR PB2, a powerbank and battery charger! I didn’t receive any other compensation than powerbank/charger.

The XTAR PB2 can be bought on Banggood (non-affiliate): https://goo.gl/Bkg3y5CORRECT LINK!

Banggood is also making a promotion until June 30th. The price is $12.99 .
After the promotion, you can use the code: ad8cd9 for the price of $13.69 .

Thanks Swi from Banggood for these offers!!!

There is an ongoing discussion thread about this powerbank/charger, here: http://budgetlightforum.com/node/60796

NOTE: This is my first non-flashlight review. I won’t be able say some things about this XTAR PB2 powerbank/charger, as I didn’t make tests (charge/discharge times), and I also don’t have some tools to inform you about the charging and discharging currents.

That said, this is what I can show you !!

_________________________________________________________________

PACKAGING and ACCESSORIES

The XTAR PB2 arrived inside a box, wrapped in foam – to protect from bruises -, which arrived in a plastic bag. The box has some basic information on the back, which can also be found on the user manual.

Inside the box we find: the powerbank/battery charger, a USB to micro USB cable (80cm; 2.5A) and the user Manual.

About the user manual, it is (well) written in at least 10 languages (English, German, French, Italian, Spanish, Greek, Turkish, Russian, Japanese and Polish).

Here’s a detail “attempt” for the English part

_________________________________________________________________

THE POWERBANK / BATTERY CHARGER

The body colour of the PB2 is a mix of dark blue and grey. It has an overall rectangular shape, but it is rounded instead of square. This gives it some ergonomics when grabbing it!

The PB2 made of plastic, but has a soft rubber touch, and seems to be anti-scratch.
The body material is also flame retardant, as mentioned in the box.

Front and back
On the front we find the luminous display and the removable panel.
On the back we find some information about battery compatibility and using currents.

Left and right
On the middle left we find a groove to help removing the battery panel.
On the top right we find the button to switch the powerbank function.

On the top it has a USB and micro-USB port.
The USB port works with the output of 5V 2.1A and with it we can use the XTAR PB2 as powerbank.
The micro USB port works with the input of 5V 2.1A and with it we can use the XTAR PB2 as a battery charger.

The XTAR PB2 has a removable panel on the front through which we can access the battery slots.
This is a magnetic panel, with 2 strong magnets, one in each side. It is reversible, meaning that there is no “correct” or incorrect side to attach it to the body of the charger. Therefore, the XTAR logotype can be turned to the left or the right!

_______________________________________

BATTERIES

The battery slots are able to fit 1 or 2 batteries that can be 3.6V or 3.7V Unprotected 18650 batteries (Li-Ion /IMR / INR / ICR).
I only have unprotected flat top batteries, therefore, I couldn’t test if unprotected button top batteries fit this powerbank/charger.
However, the space that is left in the negative contacts let me think that unprotected button top batteries may fit ! If someone has input on this please post

As mentioned above, protected 18650 batteries will not fit this powerbank/charger. As an example, I picked:
1 unprotected Sony US18650 VCT6 3.7V 3000mAh battery (Green)
1 protected Odepro 18650 battery 3.7V 3000mAh battery (Grey)

As you can see below, the protected battery is too long to fit the inner space of the powerbank / charger.

_______________________________________

DIMMENSIONS & WEIGHT

The XTAR PB2 is very lightweight (specially without batteries ) and compact.
Even with batteries it is easily portable in the pockets or in your backpack (or man purse).

Without batteries >>> With batteries (yeah, some flashlights weigh more )

_______________________________________

DISPLAY

The luminous display has space for 3 digits (to mark the 100 % charge).
Here is how it works:
- Constant light: device is being used as powerbank, the cells are being discharged;

- Flashing single digit (on the right): batteries are being charged;
When the PB2 is being used to charge the batteries and as powerbank at the same time, the diplay will blink as charging.

- Flashing double digit: low voltage signal;
I actually tested this one. The double digits started to blink at 9% when discharging. When I took the battery out, I used the Opus BT C3100 to see the voltage of the cell and it was on the 3.49V .

- Er : when batteries are wrongly placed and the device won’t work (reverse polarity protection), or by short circuit, or over-voltage input.

If the PB2 is being used incorrectly (the powerbank function is not working, or the charging is not working), the display will turn OFF.

_______________________________________

OPERATION & FUNCTIONING

CHARGING : To charge 1 or 2 batteries, place them correctly (+ towards display; – towards bottom), insert the micro USB cable in the port and it will start charging after 1 or 2 seconds.
The display lights ON and when charging the digit on the right will start blinking and will ramp up according to the charge.

POWERBANK : To use the XTAR PB2 as powerbank, with 1 or 2 batteries inside, either plug in the USB cable and it starts discharging or use the power button on the right side to turn the powerbank function ON. To turn it OFF, one must retrieve the USB cable or the batteries. The button will not work to switch the device OFF.

According to specs on user manual:

CHARGE / INPUT
- when 1 battery is charging, input current is 2Amps (1 channel)
- when 2 batteries are charging, input current is 1Amp per channel.
- when 2 batteries with different Voltage are charging, the charger will charge first the one with lower Voltage until it equals the one with higher Voltage. When they are equal, then the charger will charge both batteries together.

DISCHARGE / OUTPUT
- when only 1 battery is being used within the powerbank, the output current will be 1Amp
- when 2 batteries are being used withing the powerbank, the output current will be 2Amps
- when using 2 batteries, if one has a lower Voltage, the powerbank with discharge first the one with higher Voltage, and the discharges the 2 batteries together.

SIMULTANEOUS CHARGE / DISCHARGE
If the batteries are being charged and discharged simultaneously – ex: at the same time, charging cells while using the PB2 as powerbank to charge a cellphone – the input current will serve to charge the external device first so that the batteries’ charging cycles are safeguarded.

This means that, in these cases, the greatest amount of current will be directed to the cellphone (e.g.) and not the batteries. The batteries will not be over-charged, then, due to that simultaneous charge-discharge tension!!

0V ACTIVATION FUNCTION
The XTAR PB2 can also be used to battery revival – if they can be revived. According to specs, a 0V battery placed in the charger will start charging after 10 minutes.

As I mentioned ealier, I didn’t perform charge/discharge tests. So I’ll just leave you some photos about how this appears to work.

When charging 2 batteries, the number that is shown on the display is the “mean” of both batteries Voltage, not the number for an individual one. As far as I perceived that “individual” value can’t be displayed.

Battery #1 (left) = 80 % charge
Battery #2 (right) = 56 % charge
Both batteries = 67 % charge [this is the result of = (#1 + #2) : 2 ]

_______________________________________

OVERALL APPRECIATION

What do I really appreciate on this charger?

1) Well…it can be used as a battery charger for unprotected 18650 cells !

2) Well…it can be used as a powerbank !

3) We can put inside the powerbank (unprotected) batteries that we trust and of which we know the real capacity (if we can test them outside this charger). So, we can have at least 6800mAh (or more) to use, if you use 2 × 3400/3500mAh 18650 batteries. Well, if we use a single imaginary 6800mAh battery…then we can easily reach the 13600mAh

4) We can use the ‘juice’ of 1 or 2 batteries in powerbank mode. So, depending on the needs, one battery can be used for other things or spared!

5) When on a trip/travelling, we can take the XTAR PB2 to charge our cells and act as a powerbank (I don’t see me taking the OPUS BT C3100 on a trip…. ), and we can also use the same cells in your Flashlights
Honestly, this is what I liked the most, as from now on I don’t need to be carrying a powerbank and extra batteries for my flashlights
This means that it can help to reduce the weight of the backpack when travelling and have the best of both worlds

6) The touch of the XTAR PB2 is soft and seems to be anti-scratch.

7) It is easy to reach and replace the batteries, and the removable magnetic panel doesn’t fall easily, even if shaken!!

8) It is very portable and ergonomic.

9) It works with USB and micro USB (a plus for those like me that don’t have USB-C cables) and it brings a USB to micro-USB cable included.

——————- /////——————-

What do I think that could be improved?

1) The power button could be used to turn OFF the powerbank function, despite retrieving the cable also works.

2) It only uses unprotected batteries. Well it probably wouldn’t work completely if protected batteries were used due the protection trip at lower voltages.

3) It isn’t much clear if when using different capacity cells (3400mAh + 2800mAh) it will only behave accordingly to Voltage or it the capacity will have something to do with the performance too.

_______________________________________

So far I don’t have much more to say as a “bad” or “to improve” thing.

I will probably order some 3400mAh (Sanyo GA) batteries to use in it!

If any of you has remarks to do, please, feel free to do so They’ll be welcome!

Thanks for reading!
Best regards to all!

OH, and don’t forget:
The XTAR PB2 can be bought on Banggood (non-affiliate): https://goo.gl/Bkg3y5CORRECT LINK!

Banggood is also making a promotion until June 30th. The price is$12.99.
After the promotion, you can use the code: ad8cd9 for the price of $13.69 .

Charger Leise NiMH 2 slots LS-U2C





This is a fairly simple dual NiMH charger powered from USB.







It arrived in a cardboard box with brand name and not not much else on it.



The box contained the charger, a usb cable and a instruction sheet in Chinese.



The charger is usb powered with a micro usb input.



There is a led for each slot that will light up for the 9½ hour a charge takes.



The specifications are on the bottom of the charger.




The charger uses the classic two level construction for AA/AAA batteries.










Measurements

• Power consumption from usb when idle with no batteries is 0.4mA
  
• The charge current will depend on battery voltage, see voltage sweep curve below.
  

Golisi S2





A 2 channel universal charger from Golisi.



It arrived in a black very stylish cardboard box, there is some specifications on the back.



The box included the charger, a mains cable and the instruction sheet.



The charger has universal mains (110-240VAC 50/60Hz) and a 12V input on the back.



The user interface is two buttons and a large display. The buttons can be used to change what is displayed, but do not affect the charging. Current selection depends on number of batteries and chemistry.
It is possible to select between V, h(time) and mAh



During power on all the segments are shown.



Empty charger and with a LiIon and a NiMH battery.
Current is selected depending on number of batteries, slot and chemistry.



The charger do also support power bank function.



On the bottom of the charger there are specifications.



The slots uses the classical slider construction and it works fine.
The slots can work from 32mm to 70.6mm. This covers unprotected batteries, but some protected will be too long.








The charger can handle 70 mm long batteries including flat top cells.

The charge current for 1 cell is 1A when using #2 slot or both slots, this is rather high for small cells.
D cells may or may not work, they have a tendency to slide above the positive connection.



Measurements

• Discharge LiIon battery with 1.4mA when not connected to power.
  
• When power is connected with a full battery, it will charge with about 0.4mA.
  
• Below 0.25 volt the charger will report error
  
• Below 1.6V the charger will assume NiMH
  
• Above 2.2V the charger will assume LiIon.
  
• A slot with a battery will not increase current when other slots are finished (Good).
  
• Display turns off after 30 seconds.
  
• Voltmeter is within 0.02V
  
• Voltmeter stops updating when charging is stopped and will not show above 4.20V
  
• A single LiIon in is charged at 2A in slot #1.
  
• Two LiIon is charged at 1A
  
• NiMH is always charged at 0.5A
  
• Charger will not restart when voltage drops.
  
• The display turns off after 30 seconds (This can be disabled).
  
• It will restart charging on reinsertion of the battery or power cycling.
  
• Power consumption when idle without battery is 0.22 watt (0.54 with display on).
  

• USB output is coded as DCP
  
• USB output turns off after 15 seconds when loaded with a small current
  
• USB output is very sensitive, even a usb meter will turn it on, but it will power cycle every 15 seconds.
  

Charger EV-Peak CQ1-XR





This is a 4 channel analyzing charger and usb charger.





I got the charger in a cardboard box



The box contains the charger, a power supply and a manual.



The charger has a barrel connector for 12V power input.



The usb output connector can be used for charging, it is mains powered.



As all analyzing charger it has a display and a couple of buttons. There is also a row of blue leds at the top, when a slot is selected it will flash and it will light when the slot is busy.
The buttons are marked: CH – + ENTER



Selftest during powerup shows all the text on the display.



When working the display looks like this



The charger has the usual sliders to handle any length batteries, they work from 34mm to 72mm, but are too loose at 34mm to always securely handle 16340 and 18350 cells. They are not sliding that well either and a long battery must not be pressed against the bottom of the charger when pressing back (I will catch on the moldings, at the position the slider is on the photo).



There is some small connectors at the bottom, they can be used to charger other batteries with. They are probably in parallel with charging slot.











Settings

The termination conditions in the charger can be adjusted at it will remember the settings when power is removed. There are separate settings for each slot. To activate setting menu for a slot hold the CH button down.
I have used the default values for the testing.

Setting Delta-peak (DP) defaults to 5mV and can be adjusted from 4 to 30mV
Setting 3.6V LiFePO4 end voltage (LIFE ENDV) defaults to 3600mV and can be adjusted from 3 to 3.9V in 10mV steps
Setting 4.2V LiIon end voltage (LIPO ENDV) defaults to 4200mV and can be adjusted from 3.8 to 4.3V in 10mV steps
Setting maximum temperature (TEMP) defaults to 55° and can be adjusted from 55°C to 70°C in 1°C steps.



Measurements

• Power consumption when idle is 1.4 watt (Power adapter is 0.1 watt).
  
• Trickle charger on NiMH is 50mA at 2.5A charge current
  
• At 0.3V a battery is detected.
  
• At 1.6 volt it will assume LiFePO4 cell
  
• At 3.6 volt it will assume LiPo (4.2V LiIon) cell
  
• It is always possible to manually select another chemistry
  
• Voltage display is within 0.01 volt.
  
• Charge rate has large tolerances.
  
• Will discharge NiMH batteries with about 0.1mA when not powered (1.2V).
  
• Will discharge LiFePO4 batteries with about 3.8mA when not powered (3.4V).
  
• Will discharge LiIon batteries with about 8.2mA when not powered (4.0V).
  
• Will trickle charge a full LiIon cell.
  
• Charge will not restart charging after power loss, or battery insertion.
  

• Power consumption when idle is 1.4 watt (Power adapter alone is 0.1 watt).
  
• Usb output is coded as Apple 2.1A
  
• The display has no indication about the usb output.
  

• It often restart when charging a full load of LiIon batteries.
  
• It cannot reliable charge NiMH full.
  
• It do not terminate on LiIon charge.
  
• The discharge current settings are fantasy, it cannot discharge at these currents (A detailed reading of the specification will reveal that).
  
• The break-in algorithm is not the standard one with only 5 minute discharge.
  

Uniross Charger LCD 3-5H





This is a fairly simple NiMH charger for AA and AAA cells.



I got the charger in a blister pack. The pack has a few specifications on it.



The pack contained the charger and an instruction sheet.



The charger plugs directly into a mains outlet



The user interface is a LCD display with 4 batteries on it and a 3. different messages: CHARGE, READY, BAD.
Very simple and easy to understand.



Specifications are listed on the back.



The charger uses the typical two level slots for NiMH AA/AAA batteries.









Measurements charger

• Power consumption when idle is 0.63 watt
  
• Charge will restart charging after power loss, or battery insertion.
  
• Will discharge NiMH batteries with less than 0.1mA when unpowered.
  

Charger Doublepow DP-U03





This is a very simple NiMH charger for AA and AAA cells with 3 slots.



I got the charger in a cardboard box without any accessories.



The charger plugs directly into a usb socket



The user interface is 3 leds that is on when it is charging, i.e. when powered and there is a battery in the slot,



Specifications are listed on the back.



The charger uses the typical two level slots for NiMH AA/AAA batteries.









Measurements charger

• Power consumption when idle is 0 watt
  
• Charge always charges
  
• Will not discharge NiMH batteries
  

Efan Lux S4 LCD charger





This is a analyzing charger from Efan (Eizfan), there is no buttons on it because it uses a color touchscreen for user interface.



I got the charger in a cardboard box, if has a good picture of the charger and specifications on the back.



The pack included the charger, a power supply, a mains cable, a manual and probes for internal resistance measurement.



The charger use 12V 5A power and the mains power supply is included. The probes for internal resistance is connected to the “IR TEST” socket when measuring IR. The DATA connector is for firmware upgrade



The charger shows a animation during power on.



This is the idle picture when no batteries are in the charger. When a battery is put in the battery symbol is selected and it is possible to press on it to select settings.



There are 3 settings screens, the first one for mode, the second for current.



And the last for chemistry



Pressing the “R” button will show the internal resistance measurement screen.





Some examples on charging/discharging screens, the curve is drawn while working and the horizontal scale will change as needed.
There is no indication of charge/discharge current, it must be inferenced from the slope of the voltage curve.



The probes for internal resistance measurement, they are not 4-terminal, but the circuit in the charger may eliminate the resistance in the connector.



The probes includes tip protectors



They are connected to the usb plug on the back of the charger.



And pressed against the battery ends to measure internal resistance.



The charger has a small fan, it is temperature controlled and starts when needed, but it is rather noisy.




The charger has the usual slider construction. It can handle from 33mm to 76mm, this is most common cells on the market.

















32xxx and D do not really fit in the charger, but it may be possible to put them in.


Measurements charger

• Power consumption when idle is 1.6 watt (The power supply uses 0.11 watt in idle).
  
• Without power it will discharge a LiIon battery with about 0.5mA
  
• Without power it will discharge a NiMH battery with about 0.1mA
  
• A full LiIon battery will be charged with 0.6ma
  
• Below 0.07V the charger will charge will report error
  
• Up to 2V the charger assumes NiMH
  
• Above 2V the charge assumes LiIon.
  
• Charger will restart if battery voltage drops below 3.9V in 4.20V mode
  
• The charger will restart when a battery is inserted or power is cycled.
  
• The meter has a minimum readout of 0.5V
  
• Up to 0.8V the meter is not very precise.
  
• From 0.8V to maximum the meter is within 0.05V
  
• The meter will never show above maximum battery voltage (3.60V, 4.20V, 4.35V)
  

The LiiTokala Lii-500 charger was released a couple of years ago, and there are already several reviews of it. So, why do we need yet another review? Because Banggood was nice enough to send me one to give it a review.

Okay, I also include both written and video reviews, and I will use it to analyse the discharge capacity of some popular cells (lithium-ion and NiMH), and determine how they degrade with age and use.

The LiiTokala Lii-500 is a 4-slot charger that accepts both lithium-ion cells as well as NiMH cells. It accepts a broad range of cell sizes, from AAA batteries up to 26650 batteries. It will also analyze cell capacity, using both charge capacity and discharge capacity. Finally, it can also function as a stand-alone USB power bank, with cells installed in it.

This is a video review of the charger I put up on Youtube:

The charger and specs can be found here:

https://goo.gl/3p6AAu

You can use the discount code “05083e” to buy the charger for $22 from Banggood. Or, sometimes it is on sale.

The Lii-500 was provided by Banggood for review purposes. I receive no other form of compensation.

Overview:

The LiiTokala Lii-500 is an ideal charger for most charging and analyzing needs of all your usual cells, both lithium-ion and NiMH. The main thing I like about it is its simplicity. The default settings of the charger whenever you power it on or insert a cell, are ideal for almost all your charging needs.

Standard charge rates for all 4 slots is 500mA, for all lengths and chemistries. Lithium-ion cells will charge to 4.2v, and NiMH cells will charge until they are detected as full (usually around 1.5v). When you power it on, if there are cells in it, that is the charge they will get. If you insert a cell into an empty slot while the unit is on, it will get a default charge of 500mA.

You may also very easily change the charge rate after inserting a cell or powering on the unit. Charge rates can be 300mA, 500mA, 700mA, and 1000mA. A simple press of the “Current” button changes the charge rate.

One thing I really appreciate is that this charger will fully charge very old worn-out NiMH cells, that most other chargers refuse to charge. Select the lowest charge rate for very old cells (300mA).

Analyzing:

In addition to charging, there are also two different kinds of analyzing functions on the LiiTokala Lii-500. These are selected using the “Mode” button, after power-on or inserting a cell.

The “NOR” analyzing function (which stands for Normal), does a discharge test to report the amount of mAh of capacity for a cell. There are 4 phases to this:

1. Charge the cell to full.
2. Discharge the cell to 2.8v (lithium-ion) or 0.9v (NiMH).
3. Display the amount of discharge capacity (this remains until you remove the cell).
4. Charge the cell back up to full (or you can remove the cell before this completes).

The NOR function is the most useful analyzing tool, since it reports the discharge capacity which is really what you want.

There are two discharge rates you can select: 500mA and 250mA. These are implicitly determined by whatever “Current” rate you use. A current of 300mA or 500mA will result in a discharge rate of 250mA. A current of 700mA or 1000mA will result in a discharge rate of 500mA. This is not obvious, but I suspect they do this to prevent higher discharge rates. If you were testing 4 cells, it might cause the unit to get too hot. All that discharge energy has to go somewhere.

The “FAST” charge will give you the amount of mAh put into a cell during a full charge. There are 3 phases:

1. Discharge the cell to 2.8v (lithium-ion) or 0.9v (NiMH).
2. Charge the cell back up to full.
3. Display the amount of capacity used to charge the cell.

This can give you a rough estimate of the cell’s capacity, especially with lithium-ion cells (because charging is very efficient). But it is not as accurate as a “Normal” test, especially with NiMH cells because charging NiMH is not as efficient. I would suggest not to bother with “Fast” testing, and instead do a proper test with the “Normal” function.

Interface:

Each of the 4 slots on the LiiTokala Lii-500 operates independently, so you can perform different tasks (charging or analyzing) and different rates of charge for each of the slots. You can also mix different lithium-ion cells and NiMH cells together.

There are 6 buttons used to operate the unit. 4 of the buttons are used to select each slot, and they are laid out nicely under each slot. Pressing one of those buttons will display all the information about that slot. Unfortunately, there is not a way to display information about all 4 slots simultaneously.

The other 2 buttons are a Mode button and a Current button.

Pressing the Mode button cycles through the different functions: Charge, “FAST” Analyzing, and “NOR” analyzing.

Pressing the Current button selects 300mA, 500mA, 700mA, or 1000mA charge rates.

The type of cell (lithium-ion or NiMH) is determined automatically by the Lii-500. Note that only lithium-ion cells meant to charge to 4.2v should be used in this device (which is the vast majority of cells). LiFePO4 cells should not be used.

After inserting a cell, the slot will default to a Charge function with a current of 500mA. You can change this within about 10 seconds by pressing the Mode and/or Current buttons. You can also change it at any time by pressing and holding the Mode button for 2 seconds.

Note that if you load in multiple cells before you turn on the unit, if you change the default function or current, it will affect all 4 slots. This is a nice time-saver if you’re dealing with several cells at once and don’t want to use the defaults.

Display:

The LiiTokala Lii-500 has a display panel that displays information about each slot.
Press a slot button (1, 2, 3, or 4) to display information about that slot.

Displayed, is the function going on (Charge, NOR, or FAST), as well as whether it is finished or not. Also displayed is the capacity in mAh. For charging, this is the amount of capacity put into the cell. For analyzing, this is the result of the analyzing function.

Other useful information is the amount of time that slot has been charging (or discharging), and the current being used for charging.

Finally, there is also an internal resistance of the cell displayed. As with almost all chargers, it’s not very accurate, but it can give you a reasonable idea of whether the cell has low or high internal resistance, and thus the health of the cell. I find it works best with lithium-ion cells. With NiMH, it appears to max out at 52mR for some reason.

Power bank:

The LiiTokala Lii-500 can also be used as a USB power bank, if you need to charge your USB devices and don’t have access to regular power. It will charge USB devices (such as a smart phone) at a rate of 1 amp. It must have lithium-ion cells loaded into its slots (use 2 or more for best results). Unfortunately, NiMH cells can not be used as a power bank energy source.

Using it as a power bank is very simple. Unplug the unit from the wall, load in some lithium-ion cells, and plug your USB cable into the back of the unit.

It’s not the most elegant-looking power bank, but it’s good to know you have the option to use your lithium-ion cells for this purpose if needed.

Error handling:

The LiiTokala Lii-500 charger handles several kind of errors, usually displaying “Null” on the screen if a problem is detected.

Most importantly, it detects whether you insert a cell the proper way around. This is called reverse-polarity protection. This is a very important function that most good chargers have, since it is rather easy to accidentally insert a flat-top lithium-ion cell the wrong way.

Other protection features are: overcharge and over discharge, short circuit, temperature, zero volt activation function, and recognition of a bad battery.

Contents:

The LiiTokala Lii-500 comes with:
- The Battery Charger
- A plug/adapter, with either a US plug or European plug
- A plug for a 12v car socket
- Manual

Specifications:

Construction: Plastic

Size: 16cm x 9.5cm x 3.5cm

Weight: 209g

Input: 2A 12v power, using either the wall adapter or car plug.

Output: standard USB, 5V 1A

Charge rate: up to 1A, 4 cells.

Protection: see above

Heat: The unit does get warm when charging 4 cells at 1 amp, otherwise it remains fairly cool.

My impressions:

Pros:
- Easy to use, good all-purpose charger.
- Fully-independent slots.
- Good default rates, applicable to all cells.
- Good termination for full charge of 18650 cells and NiMH.
- Power bank is a nice additional feature.

Cons:
- Due to its small size, it will get warm when charging 4 cells at the maximum rate.

Summary:

This is a nice general-purpose charger that is simple to use. Since it charges both lithium-ion and NiMH cells, it really is the only charger you’ll likely need. Being able to do discharge analyzing of your cells is a great way to check whether your old cells are performing as expected. While a 1 amp charge is not considered “fast”, it will charge most cells in about 3 hours, and not put any stress on them due to a high charge rate. Normally, I use use 500mA, because I’m not in a hurry and it’s applicable for all kind of cells.

That’s all for now. Thank you for reading.

I received the Nitecore LC10 form Nitecore for the review.
As usual for this kind of items, I have very little knowledge of electronics and all I can say about this product is my honest opinion as a user.

The LC10 is a simple charger that works both way: you can use it to charge cylindrical li-ion batteries, and as a power bank, using any cylindrical li-ion battery as a energy source. In addition, it features white LEDs that act like a flashlight and can be set at 3 output levels.

The LC10 comes in this simple box, without any accessories or instructions.

The LC10

On one end there are the 2 magnetic contact points for the battery. There is no indication of the polarity because the battery can be connected both ways.

On the other end there are the plugs (micro USB – Lightning – USB) nested.
The USB port is used to charge the cylindrical battery you have connected to the charger.

When you need to charge your device using the micro USB port or the lightning one, you need to pull the micro USB plug out of the port and either use it as it is, or add the adaptor for the lightning port that is included.

The middle part of the LC10 has a translucent plastic shell that has 3 colored (white, red) LEDs and on the other side there of it, there is a touch sensitive panel.

When you connect the cylindrical battery, the red LEDs will turn on and show the battery charge level

If you tap on the back of the translucent plastic shell, it will turn on the white LEDs on low mode. Tap again for switching to medium and again for high mode.

When you connect a device to charge, the red LEDs will show the battery charge level.

You can still tap on the back to turn on the white LEDs and change their brightness while the process continues.

Here’s a gif of the whole process.

The LC10 can charge with current up to 1 A, and works as a charger/powerbank only with li-ion batteries.
There is no way to select the charging current, that will depend on the input (ie power adapter, usb port…).

As far as I can tell with my eye about the brightness of the white LEDs, the brightness goes from a few lumen (1-2) of the low mode to a good 20 lumen of the high mode. This means that the LC10 can be used as a dim night light, to a light that can provide enough light to brighten short distances.

As an android user I had no use for the lightning port, so I removed the adapter and never carried it. However, if you are an apple user and you need to use the LC10 as a battery charger, and not a device charger, you have to remove the lightning adapter, in order to connect the micro USB port to the USB port. The adapter is small and you have to pay attention not to lose it.

The LC10 works with magnetic system so batteries need to have magnetic attractive poles. I found that protected batteries tend to work better (they are more strongly attracted) than non protected batteries.

In the end, for me, the Nitecore LC10 is a simple li-ion charger / powerbank that works well with my micro-USB based system and has the useful additional feature of a flashlight.
I wish it could charge nimh batteires.

Thanks to AntoLed for the camera help.

Hello to everyone 
Thanking them for the trust, today I will review the Nitecore SC4 that was kindly provided by Nitecore itself.



CLICK HERE to go to the official product's page on the Nitecore website.

I want to clarify that my reviews are made at an amateur level, so without the aid of science fiction tools or tests in secret and cutting edge laboratories.Therefore, among the lines that follow, there will be my humble observations and even my humble opinions.


Official features:

- maximum charging speed up to 3000 mA
- charging current from 300 mA - 3000 mA is manually selectable
- compatible with 1,2V, 3,7V, 4,2V, 4,35V batteries
- high-definition color LCD screen displays charging parameter in real time
- utilizes energy saving function
- charging program optimized from IMR batteries
- automatically identifies battery type and selcts appropriate charching voltage and current
- capable of manually choosing charging voltage for LiFeP04 battery (3,7V) and Li-Ion battery (4,35V)
- automatically detects small capacity battery and select appropriate charging current
- capable of charging four battery simultaneously
- indipendently controls and charges each slot
- integrated USB port compatible with all USB devices
- automatically stops charging upon charging completion
- reverse polarity protection and short circuit prevention
- Li-Ion battery restoration
- overtime charging protection
- built-in temperature monitor to prevent overheating
- automatically detects internal resistance
- made from fire retardant/flame resistant PC material
- designed for optimal heat dissipation
- certified by RoHS, CE, FCC and CEC
- insured worldwide by Ping An Insurance (Group) Company of China, Ltd.


Where to buy it

The Nitecore SC4 is available to be purchased from the NitecoreStore.


The packaging

The Nitecore SC4 is sold inside a light black cardboard box with the yellow ends and therelief lettering.On the front stand out the image (in scale) of the product, the name of the company and the one of the product.
The writing "superb charger" is clearly emphasized to underline the high performances that can be achieved by the product, whose main characteristics are reported a little lower.



On the back are explained the general characteristics of this charger.A QRcode sends us back to the official page of the product on the Nitecore website and, finally, we find the company data and their website.



On one side there are the technical specifications concerning input and output together with CE, RoHS and FCC certifications



while on the opposite side there is a long list of all the SC4 compatible batteries.



Once we have extract everything from the package, we will find:
- SC4
- a power cable over 1 meter and 20 cm long with an Italian plug
- the warranty card
- the multilingual manual
Ps There is not the car charger as it is optional



Here is the manual page in the English language only.It is however possible to view (and download) the entire manual at THIS address.




The charger

The SC4 is the Nitecore's top-of-the-range charger.This is a product with a generous screen with two buttons and 4 independent slides able to charge 4 different batteries simultaneously at a maximum speed of 3000 mA.We also have the possibility to select a speed that goes from the 300 mA up to the 3000 mA already mentioned, selecting the speed in 100 mA steps (for a total of 28 selectable speeds).Inside the body there is the transformer which supplies the necessary current to the 4 slides.
The body is made of good-quality plastic able to delay flames and avoid, or at least slow down, the spread of a possible fire inside the apartment.Good general quality is perceived by touch.
On each sled, however capable of accommodating cells up to a maximum of 6.8 / 9 cm, a little drawing of a battery is imprinted to indicate the polarity that have to be respected.The two side slides are wider than the central ones and allow larger cells (like 26650) to be accommodated.The charger is however equipped with an anti-reverse polarity device and that prevent short-circuits.
The connectors on each slide are however protruding and adapt to the best of each battery,  as long as at last 2.7 cm long (minimum distance between positive and negative connectors).



As mentioned earlier, we can put a multitude of batteries in the slides of this SC4.For demonstration purposes I put a 18350, an AA, a protected 18650 and an unsecured 26650.



At the top of the charger we find a USB output (does not have the powerbank function but it is useful if we want to charge some devices like the smartphone), the car adapter socket (which I remember to be optional and not included) and the one for the power cord included in the package.



On the two sides we find the name of the product.These cuts to dissipate the heat generated do not go unnoticed.



On the back we find the name Nitecore together with the certifications.



A yellow sticker report the batteries accepted by the SC4 and the speeds involved.



Once the power cable is connected, the monitor will turn on and all the information will be readable without problems thanks to the use of white and yellow on a black background.The screen has a good backlight that drops automatically after a while but unfortunately it is not possible to completely turn off the screen manually.
Without batteries we can see that the screen is divided into three distinct zones: the "chg.mode", in which we can see or select the chemistry of the battery inserted in a given channel;the "channel status", in which we will see all the information about the battery;the "chg.channel", the area in which the charge progress of the cell is indicated.




How does it work

The SC4 automatically identifies both the chemistry (ie Li-Ion, Ni-Mh / Ni-Cd) and the capacity of the batteries, thus choosing the right charging program based on the inserted battery.The initial speed will also depend on the capacity of the battery itself (always detected automatically) so we will have a speed of 500 mA for small batteries (<1200 mAh) and 2000 mA for large batteries (> 1200 mAh).
Obviously in the settings we could change the speed, selecting it in a range between 300 and 3000 mA.
To change the speed it is necessary, with the battery inserted, keep the C key pressed and, when the charging speed will flash (under the channel status panel), press V to increase the speed of 100 mA at a time.With the V key pressed, the speed can be increased faster.To exit the setting after reaching the desired speed, just hold down the C key again.

As I said, the inserted battery is automatically identified, whether there is a Ni-Mh / Ni-Cd



than a Li-Ion.



As we all know, there are different types of Li-Ion and therefore may will be necessary to go to the settings to select a different one from the classic one (4.2V).As for the change of speed, you must hold down the C key, press C again to switch from the speed (located under "channel status") to the information that will be proposed under "chg.mode".By pressing the V key we can select the type of battery between Li-Ion and LiFePO4 in the voltages (4.3 and 3.7).To exit the settings after selecting the type of our battery, just keep the C key pressed.



When we have filled two or more slots, we may need to move between the channels to see information about each individual slot.To do this, just press the C key once, each time we move of one position and we will know which channel we are consulting thanks to the yellow "flags".









Once a specific channel has been selected, we will be able to know various information about that battery.Under the word "channel status" we will have information that will change automatically during the charge or that we can manually recall by pressing the V key.
Among the information that we will have available there will be the mAh stored during the charging process, the time spent,



the charging speed, the battery voltage



and the battery status (indicated with GOOD or POOR) with the value of its internal resistance.



Once the charge is completed on a given channel, we will have the word FULL in the "channel status" field and the cleats under "chg.channel" will be full.



Here is a little tab with the various times I found reloading some cells at certain speeds (type of battery, starting V, current speed, time spent, end V).



I also remember that the SC4 is equipped with a USB output that can power large and small devices.This does not have a powerbank function (ie it does not use the capacity of the batteries to charge other devices) but uses part of the current that enters from the power cable.
Here is a LA30 charging



and a common powerbank.



The SC4 has the function of battery recovery (it is able to charge those batteries that have 0V).Simply insert a damaged battery into the slide and simultaneously press the C and V keys to start charging.
Nitecore also advises to dispose of batteries that fail properly to overcome this type of charging as they could be seriously damaged and could constitute a serious danger to our person.


Weights and dimensions

The Nitecore SC4 measures 16.5 x 11 x 4.7 cm and weighs 386 gr.

Next here is the dimensional comparison with a big BIC lighter and a 18650



and an Xtar VC4 and an Opus BT-C3100.







Here is a shot demostrative video to see the behavior of the display and the charger in detail




Personal considerations

The Nitecore SC4 is a battery charger with 4 slides and 4 independent channels with not excessive dimensions and good build quality.
I really appreciated the possibility to manually set the charging speed from 300 to 3000 mA.This allows us to choose different speeds unlike other products that have 3-4 pre-set positions but which do not allow us to set an ideal speed for a given battery.
The slides flow well and I have not detected problems or malfunctions even though I would have liked to be able to manually turn off the backlight of the monitor.
I found the USB port comfortable and not running from powerbank has no importance given the size of the charger itself ... it would not be a compact powerbank unlike other Nitecore products that operate as powerbanks.
The only flaw in my sample is a slight buzz (coil noise) given by the integrated transformer.The "noise" is not synonymous with malfunctions and does not affect the correct operation of the device.

What do you think of this battery charger?Would you buy?

Charger Woyum ZK6





This is a 6 slot NiMH charger with a nice display and it is usb powered.



I got the charger in a cardboard box.



The pack contained the charger, a usb cable and a instruction sheet.



The charger is powered from usb



Each slot has a red/green led, that will show red while charging and green at all other times.



The charger can show 3 values for each cell, here it is charged capacity.
The circle peripheral is animated while charging, the dial and short arc shows the selected cell.



Cell voltage.



And time. It will change between them for the selected slot.
A single press on the button will move to the next slot, this sequence will always include all 6 slots, i.e. also empty slots.



A double click enters current configuration for that slot. The current is changed with single clicks between 300, 400, 500 and 1000mA.
The response when clicking is a bit slow.




The charger has the typically two level slots used for AA and AAA batteries.







Measurements charger

• Power consumption when idle is 15mA from usb.
  
• Voltmeter shows 0.01V, but actual resolution is about 0.07V
  
• Voltmeter is within 0.08V
  
• Charger will start charging at about 0.55V
  
• Charger will discharge batteries with less than 0.1mA when not powered
  
• Charge will restart charging after power loss, or battery insertion.
  

Supplied via MiBoxer for product review

MiBoxer C8 is a intelligent charger with temperature adjustment function. C8 has 8 independent charging slots, it can charge 8 different batteries at the same time, it has single channel charging up to 1.5A. You can choose different charging currents to meet the needs of slow charge or fast charge batteries and the charger will display the status of each rechargeable battery when charging. This charger is the largest charger in the MiBoxer lineup doubling its previous chargers capacity, although this charger doesn’t do 3.0A per slot it makes up for it in its 8 slots capacity.

This charger can be bought on Amazon for $49.99

https://www.amazon.com/Universal-Battery-Charger-MiBOXER-Display/dp/B07G...

Specifications Listed by Manufacturer

Apply to:
Li-ion(4.2V/4.35V) IMR/INR/ICRLiFePO4 (3.6V)Ni-MH/Ni-Cd (1.48V)Apply to：10340 / 10350 / 10440 / 10500 / 12340 / 12500 / 12650 / 13450 / 13500 / 13650 / 14350 / 14430 / 14500 / 14650 / 16500 / 16340(RCR123) / 16650 / 17350 / 17500 / 17650 / 17670 / 18350 / 18490 / 18500 /18650 / 18700 / 20700 / 21700 / 22500 / 22650 / 25500 / 26500/ 26650 / A / AA / AAA / AAAA / C / SC

Parameters :
Input Voltage: DC12V 3A (5.5*2.1mm)
Output Voltage: 4.2V±1% / 4.35V±1% / 3.6V±1% / 1.48V±1%
Output Current: Li-ion / LiFePO4 ( MAX 1.5A x 4 / 0.8A x 8 ) Ni-MH / Ni-Cd ( MAX 1A x 8 )
Size: 7in X 5.5in X 1.3in

Package Includes :
1* C8 Smart Battery Charger
1* US Wall Charger Cable
1* User Manual

Packaging:

Weight: 1.48 pounds
Product Weight:1.1 pounds
Product Size (LxWxH) 1.3 × 5 × 6.5 inches

Front

Back

Contents:

1* C8 Intelligent Battery Charger
1* Adapter
1* manual

Included AC-DC adapter outputs DC12V 3A Max

Physical Attributes:

The C8 is made out of PC+ABS fire-prevention material, the plastic of the unit is textured and it doesnt contract fingerprints and is high quality feeling. The buttons on the unit are rubberized and may see some wear after long term use. Every slot is eqipped with a high precision sliding negative bracket that moves very smoothly and is made very well. The LCD is very bright and crisp and comes with a plastic seal over it for protection. The charger body can hold up to 8 18650s in unison or only 4 26650s in alternating slots. Unlike other chargers such as the Opus this charger makes full contact with protected 26650s on both ends and holds them in well.

Front

Back

Plugged in

Full of 18650s

Can only hold 26650s on every other slot but can hold 18650s in between

Cooling the Unit:

This unit doesnt have active cooling, it uses thermal throttling if the batteries get too hot the unit turns down the current

Measurements:

The unit is approximately 5.5” × 7.1” or 14cm × 18cm
The vernier wasn’t big enough to measure the top length but I measured from where it stopped being long enough and added them together and got ~ 7.1”

Display and selectable modes:

The C8 comes equipped with a large digital LCD display, the display shows voltage, current, charging time, mode, battery type, internal resistance and battery capacity data. The charger can repair “0V” batteries and when charging 4 batteries it goes up to 1.5A for Li-ion / LiFePO4, and up to 0.8A when charging 8 Li-ion / LiFePO4. Also its up to 1.0A for when you charge 8 Ni-MH / Ni-Cd rechargeable batteries. The best feature of this new UI is that you can set the charge current of all batteries inserted by the click of one button instead of going through each battery and choosing the current.

mΩ

Amperage

Battery types supported:

-NiMH and NiCd
-Lithium-ion (4.2V ICR, INR, IMR, etc.)
-Lithium Iron Phosphate

Battery Sizes Supported:

10340 / 10350 / 10440 / 10500 / 12340 / 12500 / 12650 / 13450 / 13500 / 13650 / 14350 / 14430 / 14500 / 14650 / 16500 / 16340(RCR123) / 16650 / 17350 / 17500 / 17650 / 17670 / 18350 / 18490 / 18500 /18650 / 18700 / 20700 / 21700 / 22500 / 22650 / 25500 / 26500/ 26650 / A / AA / AAA / AAAA / C / SC

UI:
Setting battery type- insert batteries into any slots then double click the [mode] button, then the battery types will begin flashing and you can cycle through the types with the [mode] button once again.
Setting the charge current- long press the [mode] until the amperage indicator begins to blink, then short pressed to the [mode] key will cycle through the currents, (0.1-1.5A)
Setting functions of every slot at once- long pressing the [slot] key will make all slot symbols flash in unison, from there you can long press the [mode] key to set the currents of all slots at once, if you double tap the [mode] key it will change all slots battery types

Wish list:
1- Test mode, I wish that this charger also had a drain and test function to determine capacity for all 8 slots.
2- Quick charge, I wash this charger has a quick charge function similar to the C4-12s 3.0A charging capacity, even if ot only charged quickly on the outer 2 slots or something similar.
3- ability to charge 8 26650s, it may not be necessary but if you make an 8 bay charger you may as well make it fit 8 26650s

Final thoughts:
All things considered the MiBoxer C8 is a great charger for the price, the 8 slots in this charger is great especially because not many chargers on the market have 8 slots. This charger is good if you have a flashlight like the BLF GT because instead of charging one set of 4 batteries at a time you can charge all 8 and have the light ready to go.

My favorite part of this charger is the intelligent charging feature, this feature makes it easy to use for anybody because all they have to do is put a battery in and let the charger do the rest, especially if you have it and someone who doesnt know how to use the charger uses it you dont have to worry about teaching them how to use it, its simply plug and play.

https://www.amazon.com/Universal-Battery-Charger-MiBOXER-Display/dp/B07G...

Miboxer C8 Smart charger






This is a large charger from Miboxer that can handle up to 8 cells, each with automatic current selection and lots of information. The charger supports NiMH and 3 LiIon chemistries with support for many battery sizes.





I got the charger in a cardboard box with specification on it.



The pack included the charger, a power supply and a instruction sheet.



The charger requires 12V 3A power.



The user interface is two buttons and a large display.
A short press on the SLOT button will switch between slots, holding the button down will select all slots.
A long press on the MODE button will allow adjustment of charge current for the selected channel (with short presses).
To adjust chemistry double click MODE button and then select with short presses.
The interface is easy to use and fairly logical.



All segments are shown during power on.



Display when the charger is idle without batteries.



A NiMH battery is put into slot #4, the charger has not calculated internal resistance yet.



Internal resistance is calculated and charger has selected 0.25A as initial charger current, it might be adjusted later on.
There is two numbers that toggles: The first is internal resistance and charge current (mOhm/A), the second is charged capacity and charge time.



A LiIon battery in slot #5 with 105mOhm internal resistance.



Specifications are listed on the back of the charger with small black letters.



The charger has the usual slider construction. It can handle from 28mm to 74mm, this means even the longest cells.









Measurements charger

• Power consumption when idle is 0.3 watt
  
• Without power it will discharge a LiIon battery with about 2mA
  
• Without power it will discharge a NiMH battery with about 0.2mA
  
• At 0V battery voltage the charger will charge with 1.5mA and report “Err”.
  
• Up to 1.9V the charger assumes NiMH
  
• Above 2V the charger assumes LiIon
  
• The charger will restart when a battery is inserted or power is cycled.
  
• The meter is within 0.01V and works from 0.02V
  

1. Display shows 3241mAh in 5:16, 67mOhm
   
2. Display shows 3137mAh in 4:49, 43mOhm
   
3. Display shows 3305mAh in 5:01, 35mOhm
   
4. Display shows 3429mAh in 5:01, 61mOhm
   
5. Display shows 3308mAh in 4:56, 33mOhm
   
6. Display shows 3053mAh in 4:46, 36mOhm
   
7. Display shows 3310mAh in 5:03, 34mOhm
   
8. Display shows 3221mAh in 4:56, 45mOhm
   
   
   
   With four cells I could use 1.5A charge current.
   
9. Display shows 3279mAh in 3:35, 64mOhm
   
10. Display shows 3204mAh in 2:49, 39mOhm
    
11. Display shows 3236mAh in 2:55, 35mOhm
    
12. Display shows 3220mAh in 2:52, 40mOhm
    
    
    
    The charger uses up to about 2.5A from 12V when charging at full current.
    
13. Display shows 3264mAh in 6:00, 181mOhm
    
14. Display shows 3135mAh in 4:54, 43mOhm
    
15. Display shows 3301mAh in 5:06, 32mOhm
    
16. Display shows 3283mAh in 5:03, 44mOhm
    
17. Display shows 3327mAh in 5:04, 32mOhm
    
18. Display shows 3108mAh in 4:57, 40mOhm
    
19. Display shows 3264mAh in 5:06, 41mOhm
    
20. Display shows 3206mAh in 4:55, 44mOhm
    
    
    
    M1: 31.0°C, M2: 33.2°C, M3: 33.8°C, M4: 34.6°C, M5: 35.1°C, M6: 35.2°C, M7: 34.4°C, M8: 32.9°C, HS1: 44.7°C
    With 8 batteries the temperature is fairly low.
    
    
    HS1: 42.5°C
    
    
    
    M1: 41.0°C, M2: 45.9°C, M3: 45.6°C, M4: 42.2°C, HS1: 63.4°C
    With 4 batteries both the batteries and the charger gets hotter.
    
    
    M1: 49.3°C, M2: 47.6°C, HS1: 53.5°C
    
    
    
    The charger uses a internal resistance check to decide the charge current and will then ramp the charge current slowly up.
    
    
    
    It is possible to override the current setting at any time.
    
    
    
    The charger turn the charge current off the check the voltage.
    
    
    
    Charging 4.35V LiIon
    
    
    
    The high voltage LiIon looks fine.
    Display shows 2931mAh in 3:32, 113mOhm
    
    
    Charging 3.6V LiFePO4
    
    
    
    Display shows 1256mAh in 1:51, 82mOhm
    
    
    
    LiFePO4 is charger to 3.6V and the charger stops when the battery is full, this looks fine.
    Display shows 576mAh in 2:03, 113mOhm
    
    
    Measuring Internal Resistance LiIon
    
    
    
    The results looks good and the consistency is also fine (I was a bit lazy and only checked 4 slots).
    
    
    
    Charging NiMH
    
    Charging current: Auto, 0.1A, 0.2A, 0.3A, 0.4A, 0.5A, 0.6A, 0.7A, 0.8A, 0.9A, 1A
    
    
    
    The NiMH charging uses -dv/dt termination, here I used manual current selection. There is no top-off or trickle charge and none is needed.
    Display shows 1782mAh in 2:14, 51mOhm
    
    
    Display shows 1715mAh in 2:08, 63mOhm
    
    
    
    Display shows 1707mAh in 2:10, 79mOhm
    
    
    Display shows 1705mAh in 2:04, 90mOhm
    
    
    
    Display shows 1783mAh in 2:12, 185mOhm
    
    
    
    
    Display shows 1681mAh in 2:18, 105mOhm
    
    
    
    Display shows 1775mAh in 2:11, 66mOhm
    
    
    
    
    Display shows 1743mAh in 2:15, 148mOhm
    
    
    
    Display shows 2258mAh in 2:50, 69mOhm
    
    
    
    The two high capacity batteries is charged fine with a -dv/dt termination.
    Display shows 2293mAh in 2:55, 55mOhm
    
    
    
    The AAA is charged fine.
    Display shows 666mAh in 1:53, 92mOhm
    
    
    
    Here I selected a very low charge current, this means a -dv/dt termination will not work. The charger terminated anyway and at about the correct time.
    Display shows 1725mAh in 18:43, 100mOhm
    
    
    
    With -dv/dt termination the charger will be slow to termination on a full cell, here it took about 15 minutes.
    Display shows 60mAh in 0:14, 53mOhm
    
    
    
    The automatic current selection can also be used for NiMH.
    Display shows 1744mAh in 4:01, 71mOhm
    
    
    
    With NiMH the charger can charge 8 batteries with full current at once.
    
21. Display shows 1890mAh in 2:24, 110mOhm
    
22. Display shows 1794mAh in 2:13, 52mOhm
    
23. Display shows 1880mAh in 2:14, 47mOhm
    
24. Display shows 1847mAh in 2:12, 51mOhm
    
25. Display shows 1750mAh in 2:07, 54mOhm
    
26. Display shows 1766mAh in 2:07, 37mOhm
    
27. Display shows 1890mAh in 2:14, 35mOhm
    
28. Display shows 1870mAh in 2:13, 41mOhm
    
    
    
    The charger uses about 1.8A from 12V
    
29. Display shows 1844mAh in 2:13, 101mOhm
    
30. Display shows 1834mAh in 2:12, 40mOhm
    
31. Display shows 1905mAh in 2:14, 34mOhm
    
32. Display shows 1879mAh in 2:15, 38mOhm
    
33. Display shows 1724mAh in 2:03, 34mOhm
    
34. Display shows 1813mAh in 2:09, 38mOhm
    
35. Display shows 1869mAh in 2:12, 29mOhm
    
36. Display shows 1847mAh in 2:03, 64mOhm
    
    
    
    M1: 41.4°C, M2: 46.3°C, M3: 46.7°C, M4: 47.6°C, M5: 49.6°C, M6: 48.3°C, M7: 48.3°C, M8: 43.8°C, HS1: 70.2°C
    8 NiMH batteries gets warmer than 8 LiIon batteries when charging at full current, but it is acceptable.
    
    
    
    M1: 49.7°C, M2: 48.5°C, HS1: 55.9°C
    
    
    
    The charger uses a internal resistance check to decide the charge current and will then ramp the charge current slowly up.
    
    
    
    Current can be changed at any time.
    
    
    
    As is common with all NiMH chargers the current is turned off to measure the NiMH voltage.
    
    
    
    
    Measuring Internal Resistance NiMH
    
    
    
    The results looks good and the consistency is also fine.
    
    
    
    
    Conclusion
    
    The charger works fine and has a good user interface. For NiMH and 4.2V LiIon the charger is very easy to use, just put the batteries in and it will do everything, the automatic current selection may not select the best current, but it will not cook batteries.
    To get a more controlled charge current it is easy to set charge current for one or for all slots, it is also fairly easy to select 4.35V or 3.6V charge voltage.
    Some people like to see a percent, some a voltage, this charger shows everything at the same time including internal resistance, but only for one cell at a time.
    
    I will rate it as a good charger.
    
    
    
    Notes
    
    The charger was supplied by Miboxer for review.
    
    Here is an explanation on how I did the above charge curves: How do I test a charger
    

ISDT A4





A very simple charger to look at from ISDT, but it can do more than the looks shows. It will charge NiMh, LiFePO4 and regular LiIon batteries in AA and AAA size.



I got the charger in a cardboard box



The pack included the charger, a usb cable and a instruction sheet.



The charger is usb powered.



There is one multicolor led for each slot. The color and blink pattern are used to show chemistry and charge state:

• Orange/yellow: NiMH
  
• Purple: LiFePO4 or LiIon
  
• Green: Charge done
  
• Red: Error, number of flashes shows type.
  
• Up to 25% charge: Single flash
  
• 25% to 75% charge: Double flash
  
• More than 75% charge: Triple flash

• Power consumption when idle is 60mA from usb.
  
• When charging the usb power draw is kept at 500mA or lower.
  
• Without power it will not discharge a batteries with any significant current
  

Supplied via folomov for product review

This is a short review of the single battery charger from folomov, this charger acts as a power bank as well with the male/female USB connector. The A1 is a simple and fuss-free Lithium Ion charger with a useful power bank feature. the charger itself is very small, small enough to fit in a pocket and be there when you need to use it as a power bank in an emergency.

You can purchase this charger on amazon for $8.87

https://www.amazon.com/FOLOMOV-A1-Magnetic-Charging-Discharging/dp/B07BF...

Specifications Listed by Manufacturer

-Small magnetic USB battery charger at 1000mA charging speed

-Unique Power bank function can output power at 1000 mA to charge your cellphone

-Built in indicator to let you know if the battery is charging or discharging. It glows green when charging and blue when discharging

-It has reverse polarity protection and have red indicator to remind the reverse contact and Can automatic activate a 0V battery

-It provides constant current and stable voltage for safe and efficient charging; BATTERY NOT INCLUDED

Packaging

Weight: 46g
Product size (L x W x H): 5.5 × 3.5 × 0.8 Inches

Contents

1* A1 Charger

Physical Attributes

The charger is made of plastic mostly with some rubber coating on the wires. It also has 2 neodymium magnets for the positive and negative leads. This charger can hold any battery size all the way up to a 32650.

Modes

The A1 has a charge mode which charges the battery at 1.0A , there is also a discharge mode which charges a device at 5V 1A. The A1 has a 0V activation feature and over-current & over-discharge protection with a constant current & constant voltage charging algorithm.

Charge

Discharge

Supported Batteries/Technical Data

Final Thoughts

The Folomov A1 magnetic charger is a great charger if you don’t want to pull out a big charger for just 1 battery, it charges fairly quick and does the job well if you need a quick charge. The discharge feature is great if you want to charge a USB device such as a phone and your on the go, you can just pull out your flashlight and use some of the battery to charge up your mobile device. Overall I recommend this product for its usefulness and simplicity and size.

I received the Nitecore Q6 for the review from Nitecore.
While I think I can provide some useful information about flashlights from a technical point of view, when it comes to chargers, I have very little knowledge. So what I can do is give you my thoughts as a flashlight user, maybe with a few years of flashlight passion on my shoulders.

The Nitecore Q6 is a 6 slot IMR battery charger. This doesn’t mean that it won’t charge regular li-ion cells, but that the Q6 uses the best algorithm suited for IMR batteries. It has 6 independent slots, and is able to deliver 2A over a single slot, or 1 A over 4 slots or 0.65 A over 6.

It comes in this box

The Q6 with manual and power adapter.

The underside of the q6 has silicone pads and shows the supported cells.

The design is the typical of chargers, a prism with rounded edges.

Each slot has its own LED status indicator: red when charging, green when charged. The contact points are raised both for the positive and negative poles of the slot, so you can charge button and flat top cells.
The slots are wide and long enough to accept even bigger cells like 20700 and 21700.

The Q6 has 6 independent slots, and is able to deliver 2A over a single slot, or 1 A over 4 slots or 0.65 A over 6.
This comes with a caveat: you can’t charge a small number of cells with little capacity cause the current will be too high.
It is a very simple charger: you put the cell in and the charger does everything. If you forget batteries into it, it has even a built in timer of 16 hours to stop the charging process.

There is also available as an accessory the 12 V power adapter.

There is not much I can say about this charger. If you use a lot of big li-ion IMR cells, this is a good charger for you.

Thanks to Antoled for the camera help.