Test/review of Charger LiitoKala Lii-402

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.

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

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

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.

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

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?

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 ?

Yes, it does that too.

On one slot I suppose not on all ?

Yes, on the most right slot only.

Thanks guys !

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!

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. :+1:

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)

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 4x1amp 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.

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.