Test/review of Charger LiitoKala Lii-402

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HKJ
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Test/review of Charger LiitoKala Lii-402

Charger LiitoKala Lii-402
DSC_3555
DSC_3556 DSC_3557
LiitoKala has some fairly cheap charger that can handle nearly all battery types (Lii-100 and Lii-202), do this one match the other models?
DSC_3552
It arrived in a brown cardboard box nearly without any printing on it.
DSC_3553
In the box was the charger, a power supply, a car adapter and a instruction sheet.
DSC_3558
The charger has usb input for charging and usb output for power bank function.
DSC_5341
The user interface is lots of leds and a single button.
Holding the button down will change current.
Short presses on the button will change battery type.
These selection can only be done before it starts charging.
There is lots of restriction on charge current.
DSC_3559
Specifications are printed on the bottom of the charger (That is fairly common).
DSC_3561 DSC_3562
The slots uses the classical slider construction and it works fine.
The slots can work from 32.4 mm to 70mm. This means that very long protected 18650/26650 batteries will not fit in the slots.
supportedBatteryTypes
supportedBatterySizes DSC_3882 DSC_3883 DSC_3884
DSC_3885 DSC_3886 DSC_3887 DSC_3888
DSC_3889 DSC_3890 DSC_3891
The charger can handle 70 mm long batteries including flat top cells.
Charge current is on the high side for 10440 batteries.
21700 is a very tight fit.
Measurements


  • Only slot #4 support 2000mA current
  • 1000mA can only be used with one or two batteries on the charger.
  • 700mA can be used with up to 3 batteries.
  • 500mA can be used with all four batteries.
  • The charger will discharge LiIon batteries with below 0.1mA when not connected to power.
  • Usb out will discharge with 0.6mA when not connected to power.
  • When power is connected with a full LiIon battery, the charger will charge with 0.5mA
  • Below 0.1V the charger will not detect a battery, but will charger with about 3mA
  • Between 0.1A and 2.0V the charger assumes NiMH
  • Above 2.0V the charger assumes LiIon
  • Charger will not restart when voltage drops.
  • It will restart charging on reinsertion of the battery or power cycling.
  • Charger uses about 30mA from usb when idle.

Charge LiIon
LiitoKala%20Lii-402%201A%20%28SA18650-33%29%20%231
The charger uses a CC/CV charge curve, but with a fairly high termination current of about 200 to 250mA. It also looks like the electronic is slightly unstable when running in CV mode.
LiitoKala%20Lii-402%201A%20%28SA18650-33%29%20%232
LiitoKala%20Lii-402%201A%20%28SA18650-33%29%20%233
LiitoKala%20Lii-402%201A%20%28SA18650-33%29%20%234
All channels works the same way, the varying amount may be due to different batteries or due to the charger electronic.
LiitoKala%20Lii-402%201A%20%28SA18650-26%29%20%231
This cell is charged the same way, here I included the usb power consumption and it do also vary in CV mode.
LiitoKala%20Lii-402%201A%20%28PA18650-31%29%20%231
No surprise with this cell.
LiitoKala%20Lii-402%201A%20%28BE18650-26%29%20%231
With this old cell the charger is much more stable.
LiitoKala%20Lii-402%200.5A%20%28AW18350-IMR%29%20%231
With a 200mA termination current it is not possible to fill much energy in this worn down cell.
LiitoKala%20Lii-402%200.5A%20%28KP14500-08%29%20%231
The 14500 works better, but it is a high termination current.
LiitoKala%20Lii-402%202A%20%28SA18650-33%29%20%234
In slot #4 it is possible to charge with 2A, the charger do not handle that well, it starts reducing the current very early. The final charge is fine enough, but the time is longer than a real 2A charge would have been.
LiitoKala%20Lii-402%200.5A%20%284xSA18650-33%29
Charging 4 cells at 0.5A works fine enough.
Temp4829
M1: 29,0°C, M2: 30,8°C, M3: 29,7°C, M4: 30,1°C, M5: 36,3°C, HS1: 42,5°C
One of the batteries is a 21700!
Temp4831
M1: 38,0°C, HS1: 40,8°C
PoweronLiIon
Because the charger gives the user time to select battery type, it need about 8 seconds to start.
Charge LiIon 3.6V LiFePO4
LiitoKala%20Lii-402%200.5A%20%28SO14500-LiFePO4%29%20%231
LiitoKala%20Lii-402%201A%20%2818650-LiFePO4%29%20%231
These batteries are charger to 3.65V, this is fine.
Charge LiIon 4.35V
LiitoKala%20Lii-402%201A%20%28LG18650-30%29%20%231
The 4.35V also works fine.
Charge NiMH
LiitoKala%20Lii-402%201A%20%28eneloop%29%20%231
This looks like a voltage termination without any top-off or trickle charge. I am missing the temperature raise the shows the cell is full.
LiitoKala%20Lii-402%201A%20%28eneloop%29%20%232
LiitoKala%20Lii-402%201A%20%28eneloop%29%20%233
LiitoKala%20Lii-402%201A%20%28eneloop%29%20%234
And the same on the other channels.
LiitoKala%20Lii-402%201A%20%28eneloopPro%29%20%231
Here it is also a voltage termination.
LiitoKala%20Lii-402%201A%20%28powerex%29%20%231
With the powerex it is a -dv/dt termination and there is a temperature raise.
LiitoKala%20Lii-402%201A%20full%20%28eneloop%29%20%231
Detecting a full cell is fairly fast with voltage termination, here a bit over 5 minutes.
LiitoKala%20Lii-402%202A%20%28eneloop%29%20%234
In slot #4 the charger can charge with 2A, again it uses a voltage termination.
LiitoKala%20Lii-402%200.5A%20%28eneloopAAA%29%20%231
The AAA cell is also stopped on voltage.
LiitoKala%20Lii-402%200.5A%20%28eneloop%29%20%231
Doing a AA cell at 0.5A is stops nicely due to the voltage termination.
LiitoKala%20Lii-402%200.5A%20%284xeneloop%29
Four NiMH AA batteries are limited to 0.5A charging. The temperature is from slot #3 and the charger probably used -dv/dt charge on that battery.
LiitoKala%20Lii-402%200.5A%20%284xeneloop%29a
The current draw is just below 1.2A on 12V.
Temp4918
M1: 31,3°C, M2: 32,9°C, M3: 32,3°C, M4: 31,5°C, M5: 39,4°C, M6: 31,2°C, HS1: 45,9°C
Temp4919
M1: 39,3°C, HS1: 45,4°C
PoweronNiMH
The charger starts faster with NiMH and uses the usual pauses to measure the voltage.
Usb output


  • Usb output is coded as usb charger (DCP)
  • Only one battery is used for usb output.
  • While usb out is active the 4 leds above the battery shows remaining charge in the battery.
  • Usb output will turn off after 10 seconds with less than 20mA load.
  • The power bank will discharge batteries with about 0.6mA
  • Usb output will only turn on when no power is connected to the charger.
  • Usb output will usual turn on automatic, but can also be turned on with the button

LiitoKala%20Lii-402%20load%20sweep
The usb output can deliver about 1A before the output drops, but it do not look like it has a real overload protection, instead it turns off when battery voltage is too low.
LiitoKala%20Lii-402%20usb%20out%2010ohm%20%28SA18650-33%29
At 0.5A output the usb output works nicely.
LiitoKala%20Lii-402%20usb%20out%205ohm%20%28SA18650-33%29
But at 1A output it has trouble keep the voltage up when the battery voltage drops.
10ohm
The noise is 13mV rms and 117mVpp at 0.5A, when the batteries have enough voltage.
5ohm
The noise is 41mV rms and 197mVpp at 1A
Conclusion
The charger can handle 3 types of LiIon chemistry nicely and also a varity of cell sizes, but I am missing a lower charge current for 10440 cells. A lower termination current would also have been nice.
With NiMH it uses either voltage or -dv/dt termination, this is a good strategy, but I am missing a top-off charge when it do voltage termination.
The usb output only uses one battery and has trouble delivering full power when the battery is partly discharged and the full power is not that high at only 1A.
I will rate it good for LiIon and NiMH, but only acceptable for the power bank.
Notes
Here is an explanation on how I did the above charge curves: How do I test a charger
Read more about how I test USB power supplies/charger

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

MRsDNF
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Thanks HKJ. Thumbs Up

 

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Kodachrome40
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Thanks for the review. I recently purchased this charger and I really like it. It’s nice to see it perform well in your tests.

angerdan
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Thanks for the Review!

ecobalans
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So you can’t charge 4* 18650’s @1A at the same time(?)
I tought it would be a nice charger besides my lii500. But this is a no go.

d_t_a
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ecobalans wrote:
So you can’t charge 4* 18650’s @1A at the same time(?) I tought it would be a nice charger besides my lii500. But this is a no go.

I believe that’s the limit of a USB-powered charger (5v 2A).

I wonder if a 5v 3A USB charger (5v3A is out of spec??) would be able to do faster charging if supported?

HKJ
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d_t_a wrote:
I believe that’s the limit of a USB-powered charger (5v 2A).

I wonder if a 5v 3A USB charger (5v3A is out of spec??) would be able to do faster charging if supported?

This is a bit of a gray area. Apple coding support up to 2.4A at 5V, QuickCharge is usual up to 3A at 5V
Usb charger (DCP) is 1.5A or maybe more.

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

Stittville Ed
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Thank You for taking the time to do yet another GREAT review.
I might not understand all of your test but I am slowly learning.

Thank You

scrumpypaul
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Hi all.,

I’ve just ordered this charger at Rosegal with a code DSRGMY18 which gives the price at $6.99 including free shipping.

Paul

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Hate to say it, but it’s the worst charger I have ever had. Oh, you can get by with it….but there is far better stuff out there.

angerdan
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I received my own copy and i just can say: great charger!

hIKARInoob
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It’s a great backup charger; very compact and micro USB powered. If you have a backup light with you, why not a backup charger just in case?

vidramon
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Does Lii-402 have battery checker like lii100 and lii202 ?

Put a li-ion battery when charger not powered and it will display current battery capacity on 4 dashs ?

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Yes, it does that too.

My very own high current Beryllium Copper springs Gen 3:
http://budgetlightforum.com/node/67401
Liitokala Aliexpress Stores Battery Fraud: http://budgetlightforum.com/node/60547

vidramon
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On one slot I suppose not on all ?

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vidramon wrote:
On one slot I suppose not on all ?

Yes, on the most right slot only.

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Thanks guys !

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Cheers vid. I was pleasantly surprised by the quality of this charger for the money. It’s not perfect though, terminating voltage of the four bays vary significantly. Last time I charged four identical cells simultaneously the lowest terminating voltage was 4.10V, and the highest was 4.19V. But for the money it’s awesome!

vidramon
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Try again with the same cells and swap their places and see maybe one same slot is problematic.

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vidramon wrote:
Try again with the same cells and swap their places and see maybe one same slot is problematic.

I think about half a year ago this wasn’t the case, so I was under the impression it was sort of random. Also the voltages of the other three slots were not identical as is the case for example with my Xtar VP4. But I’ll pay attention to this next time. Thumbs Up

d_t_a
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vidramon wrote:
Does Lii-402 have battery checker like lii100 and lii202 ?

Put a li-ion battery when charger not powered and it will display current battery capacity on 4 dashs ?

If you mean, when the Lii-100/202/402 chargers are not connected to USB power, and you put a battery on the battery slots, will the “4-dash” level bars light up to indicate approximately how many percentage charged?

So, when the Lii chargers are not powered via micro-USB, that “function” works only when there’s a battery on the right-most slot (only the right-most slot has the USB powerbank function). So when the right-most slot is occupied, the other slots with batteries will then indicate their battery charge level. But if the rightmost slot is not occupied/providing power to the device, then the charger doesn’t power up — all other slots will not light up.

An observation: the Miboxer C4-12 also has this same function. When not connected to AC power, but the C4-12 has a lithium-ion battery on the rightmost slot (powerbank function), the other 3 slots (with battery inserted) will then show the idle voltages (the 4th slot itself won’t show voltage of the 4th slot, but instead shows the current consumed by the USB powerbank function)

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I have a history blowing up / destroying chargers for the last ~10 years (on top of my mind 3*Trustfires, 1*Ultrafire, 2*Xtar 8slots, 2*Nitecore 4slots). Why? Because I keep them plugged in and most of the times with a couple of batteries charging. So, I got 5*Lii-402 as “burners”, a few Lii-202 and a couple of Lii-100 while keeping better quality chargers (like Opus) for “special jobs” like Mah / Resistance measuring and quick charge.

My results after ~10 months for my first – and always plugged in – Lii-402 is that it didn’t blew up yet and charges my VTC6 and 30Q upto exactly 4.15V every time, no matter which slot. It does great job for LifePO and NiMh too. So, I will recommend them as cheap burners. Get a few and if someone breaks, recycle it.

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Aleister wrote:
I have a history blowing up / destroying chargers for the last ~10 years (on top of my mind 3*Trustfires, 1*Ultrafire, 2*Xtar 8slots, 2*Nitecore 4slots). Why? Because I keep them plugged in and most of the times with a couple of batteries charging. So, I got 5*Lii-402 as “burners”, a few Lii-202 and a couple of Lii-100 while keeping better quality chargers (like Opus) for “special jobs” like Mah / Resistance measuring and quick charge.

My results after ~10 months for my first – and always plugged in – Lii-402 is that it didn’t blew up yet and charges my VTC6 and 30Q upto exactly 4.15V every time, no matter which slot. It does great job for LifePO and NiMh too. So, I will recommend them as cheap burners. Get a few and if someone breaks, recycle it.

Strange I’ve had my opus going for a year and half going 24 hours a day no joke. No fan issues. Only had to get a better power supply. To deal with the voltage spikes of 4×1amp on fully discharged batteries. I keep a folomov a4 plugged in next to it that runs constantly as well. I keep a a2 plugged in at work constantly. And it’s outside under a overhang. But it only gets used about 3 or 4 times a week if I need to hit my vape batteries at 2 amps for half a hour to make it through the rest of the day

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Speed4goal wrote:
Aleister wrote:
I have a history blowing up / destroying chargers for the last ~10 years (on top of my mind 3*Trustfires, 1*Ultrafire, 2*Xtar 8slots, 2*Nitecore 4slots). Why? Because I keep them plugged in and most of the times with a couple of batteries charging. So, I got 5*Lii-402 as “burners”, a few Lii-202 and a couple of Lii-100 while keeping better quality chargers (like Opus) for “special jobs” like Mah / Resistance measuring and quick charge.

My results after ~10 months for my first – and always plugged in – Lii-402 is that it didn’t blew up yet and charges my VTC6 and 30Q upto exactly 4.15V every time, no matter which slot. It does great job for LifePO and NiMh too. So, I will recommend them as cheap burners. Get a few and if someone breaks, recycle it.

Strange I’ve had my opus going for a year and half going 24 hours a day no joke. No fan issues. Only had to get a better power supply. To deal with the voltage spikes of 4×1amp on fully discharged batteries. I keep a folomov a4 plugged in next to it that runs constantly as well. I keep a a2 plugged in at work constantly. And it’s outside under a overhang. But it only gets used about 3 or 4 times a week if I need to hit my vape batteries at 2 amps for half a hour to make it through the rest of the day


I am glad to read that Opus can stand the test of time, mine has a rattling fan from day one and I ordered a few replacement fans but I consider this just a glitch, other than that it’s working great. My thoughts, after no charger survived for more than a year in my hands, is “cheap or expensive, it’s going to break in a year tops, so better throw 5-10 euros / year than 40+”.

On the other hand, I charge at least 3-4 batteries daily (ecig), I top up ~40-50 batteries every couple of weeks (from flashlights that I keep out to use) and 400+ batteries once every six months (all my batteries, Lion, LifePo4, NiMh). So, I can’t really blame a charger if it dies after 3000 charges. The good news is that only the trustfires died with a bang, all the others just stopped charging to 100%, e.g. were stopping at 3.8V or didn’t charge at all, no bangs.

Let a flooder be my wife and a thrower be my mistress

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The opus has been a great charger. Mine undercharges to 4.13 it’s voltmeter is .07 off. So it discharges to 2.73 and charges to 4.13 so when I do my capacity test. I charge the batteries on one of my other charges that stop at 4.19/4.2

I don’t mind it will help increase cycle life. Not much capacity in that small spread. I have 3 tomo powerbanks going day and night. Go through a couple sets for my vape. And whatever flashlights I play with for the night. Sometimes more in fall and winter then summer but still late night at summer. I’ll take my kids to the park and its not lit up at all basically. I make a circle of flashlights. And may use 30 40 batteries in those couple hours. I use to grab lots of pack pulls out the recycle bins. Amazing what you can find, o just recycled about 60 cells I’ll never end up using. But I like to have a decent pile of cells. Being the literal ground 0 for katrina
I want to have enough batteries to have light for at least a week for my parents and parents in laws to have a few lights and batteries for a week. And be able to keep my powerbanks running for around a week. Even though my parents now have a house about a hour away to evacuate to. But with big storms it knocks out power to hundreds of thousands of people. Tons of old and rotting trees and tree limbs destroy the powerlines.

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Blf has changed a lot since I've been here. Lots of snow flakes and easily offended over nothing. When the forum use to be great and people joked around and could take a joke. It's a forum it's not that serious. Let's make BLF great again!