Test/review of LiitoKala INR26650-50A 5000mAh (Black)

Where have you seen me offer any other Nitecore, except D4? Only D4 or, as a last resort, D2 deserve respect and positive ratings. Only D4 and D2, so you do not need to mix all the products in one pile. D4 and D2 are based on schemes donated to this Chinese by engineers from one of the Japanese firms (like I have heard from other people for a long time such a fact that the roots of the circuitry of these particular D4s lead to the world-famous company Kawasaki, which also makes military equipment for Japan). All the other Nitecore is junk, which heats the batteries and leads to their rapid deterioration. You can also look at the tests from the master HKJ, which showed a little that during charging the batteries have a rest, during which there is a possibility to cool much better - the cells installed in the slots are always charged in turns.
Also during the charging process, the device’s microcontroller constantly monitors the state of the elements and always adjusts the level of charge current according to their internal resistance, charge level and so on (there are some subtleties that are inaccessible to other chargers and to fully understand many people this is Japanese technology, in other words, from aliens, and not from ordinary people).


http://www.livekuban.ru/upload/iblock/a16/monkeyastronaut.jpg

I ran the test again using my Lii-500.

Cell 1 4632mAh at 500mA discharge
Cell 4 4739mAh at 500mA discharge

Nor Test on 1000mA charging. Nor Test is a discharge test. Setting the Lii-500 to 1000mA discharges the cells at 500mA.

Cell 1 tested as 4651mAh in my C4.
Cell 4 is the only one I haven’t tested in the C4.

I would expect somewhat higher capacities at 500mA discharge than I got from the ISDT-C4 at 1500mA discharge. Is the ISDT-C4 analysis wrong? Maybe, but only by 20mAh. Ambient temperature could be another reason.

Do not buy the Blue “LiitoKala 5100mAh cells.

/\ … Thanks for the update.

The advertisements promise that these elements are suitable for discharge currents up to 20A. Therefore, the cell must cope with currents in the range from 0A to 20A. Purchase just such a special active device (not your Lii-500 or similar primitive control devices), which, with your personal settings for discharge current (A) and voltage threshold for discharge level (V), will easily help you to check any such battery

https://ru.aliexpress.com/item/150-60-10A/32879958043.html?spm=a2g0s.13010208.99999999.666.777d3c00WIQAlB

Does anyone know if this is the same battery that Intl-Outdoor is selling as a package option with the Emisar D4S? Is it a good battery to power the XP-L Hi’s on the D4S?

D4S link
https://intl-outdoor.com/emisar-d4s-26650-high-power-led-flashlight-p-932.html

Thanks!

As long as International Outdoor cares about their products and customers I'd say the cell should be good, a real Power Long Battery cell in optimal condition as HKJ tested.

Can also try elsewhere, FastTech maybe. Or this 192led Shockli 26650 5500mAh sale, they claim the cells to be from the same warehouses as GearBest. Paying with PayPal provides adequate fake protection in any case.

Good luck. :-)

Cheers

If someone else with real test equiptment wants buy a set of the blue cells and do full set of I-V discharge curves, please do.

I don’t have the money or the time.

Your results are good enough for me. :+1: … Thanks for sharing them. :slight_smile:

For a current discharge of 500mA, it makes no sense to look for elements in the form factor 26650,
when there are more compact 18650 and with a high capacity :wink:

I”m not sure what you are talking about. :question: I thought we were trying to determine if those Liitokala 26650’s were any good. Not comparing them to 18650’s.

Maybe I missed something???

The blue 5100mAh cells are well under 5000mAh at 500mA.
The blue 5100mAh cells are well under 5000mAh at 1500mA.

My real LiitoKala Black and Gold –50A cells test over 5000mAh on the same primative toy engineering chargers. On top of that, the AC impedance of the blue cells is higher than the black and gold.

I would be very surprised if using a high-precision constant current load, 4-terminal battery holder and $2000 bench DMM finds the Blue 5100mAH “LiitoKala” cells are 5100mAH as advertised or even as good as the 5000mAh black and golds.

Ok. I’m done.

True, you have not seen the most important thing. And about this I have already said a little higher. However, if you do not understand, then I can repeat that you can’t fully check advertising promises for these blue Lii-5100 (or 5000), having a regular device with a discharge current of only 500mA, as advertising promises 20А. Who needs your 500mA, if people buy 26650 for large currents (not at all for 500mA) :question:

:laughing:

They show to sell the Liitokala 5000mah, not 5100mah. I can’t find any pictures. I would guess they use the proven older cyan or black cells that so many of us use for high powered lights.

If anyone knows what battery they use for sure, please post it.

And you “done” good!! :beer:

Those cells are dogs compared to the Liitokala Black & the Original Liitokala’s we got a couple of years ago.

Who knows if this seller has real cells or what? https://ru.aliexpress.com/store/group/OTHER/1191644_506030251.html?spm=a2g0v.12010612.0.0.745b6d19tLe1aI

They don’t carry Liitokala brand, what cells were you asking about?

All of their 26650 KeepPowers are the old and outdated 5200mah which are not very good.

Yes, I agree that KeepPowers is rubbish. Just need to know more details about the elements of KeepPowers 26650 6000mAh (?)

Verry good battery. I use in Thorfire S70s. Recomend.

Does anyone know if our master HKJ is planning to test these mysterious and little-known keeppower-6000 in its usual style?

Only the 5200 version KeepPower is the old and outdated one.

Check out HKJ and Moochs review for the Shockli 5500.

We even have a thread on the Keeppower 6000mah here at BLF.