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

And increased fire/explosion safety. Though they aren’t Li-Titanate-level of cycles, I’m told that LiFePO4 offers more cycles than standard cells. Most of the people here know far more about batteries than I, but I think that LiFePO4 also reduces the cobalt demand as well, though obviously with reduced energy density. They are no panacea.

Actual chemistries today are more complex than I understand, though.

Also, LiFePO4 can be overcharged to a surprising degree without damage, which is quite different than our standard chemistries. From what I’ve seen, LiFePO4 cells could be safely charged to 4.2V. There is no capacity advantage when doing so, however, as the cell is effectively saturated by 3.6V with the bulk of the charge achieved even by 3.4V.

This is interesting when replacing flooded lead-acid batteries, as a 4S pack is fully charged by 14.4V and should handle up to 16.8V without damage. Regulation is still needed, however, as alternators can output up to 18V when extremely cold. This wouldn’t damage the pack within the few seconds that this usually occurs, but regulator failure could harm the pack. At least it shouldn’t explode or burn.

Hope so i seem to be amassing a collection of 26650 hosts with little in the way of cells besides some Ultrafake(ultrafire) 6000mah

Ok Orders arrived from Store No. 217753

26650

Which blue ones? The blue/cyan 5000mah are older, but good cells. The blue 5100mah seem to be a random variety of 26650 they get from different places. Their capacity measurements from battery chargers are all over the place. Sometimes higher, sometimes lower.

I’m guessing by the overly high reading it’s the 5100mah.

Black & gold they are marked up 5000mah I ran a full discharge & recharge cycle

JasonWW,

First of all, that measurement isn't a test. It is a standard charge measurement, which The_Fat_Controller initiated with the cell discharged to some point. :???:

Power Long Battery is not the only manufacturer of good 26650s, check this old Test/Review of LiitoKala INR 26650 5000mAh cells @ CandlePowerForums:

On the other hand, analyzing chargers are far from being laboratory equipment. They measure differently in all their slots. I myself have taken the time to properly average my Lii-500 measurements and obtain compensatory channel indexes. On top of this I believe it measures a little bit below Henrik's setup.

Thats correct i just discharged them fully and then recharged… not sure how accurate it is but the other 26650 i have read just 3000mah this way

Good to hear.

2 different cells. I’m talking about the newer 5100mah, your talking about the older 5000mah.

Heh! Do you think there's just a single LiitoKala? You are wrong if so:

The first LiitoKala with a website I found, the one which once dared to promote themselves effrontery claiming their CEO Ashley Zhang (check here) was

… Elsa Pataky, is http://www.liitokala.com.cn, and at the bottom of their front page you'll find a link to LiitoKala® AliExpress store 217753.

A second one owns http://liito-kala.com, and at the bottom of their front page you'll find links to https://liitokala.aliexpress.com/ (AliExpress store number 133859) and to Amazon US.

The Chinese and their laws…

Not so impressed by the Yellow 21700 from the same store. drained and recharged twice both show around 4100mah

Bunch of reckless pirates , they probably wrapped some Lishen LS21700SA (LiitoKala Lii-40A) cells with 5000mAh rated wraps.

Open a dispute and kick their arses. I would get a half refund 100% for sure.

I don’t think you’re right this time. The accumulators are not the same! The measured capacity is really 5000mAh. I also opened a Liitokala dispute over the Samsung 30Q. I won the dispute. I was refunded 50% of the amount paid. These batteries (versions 4000 and 5000) will not be the same. I have the original version 4000 and a new version 5000 on the way. After delivery I measure and compare them.





What does the bottom of the battery look like?

[quote=Petr J.]


Do you have a link to where you ordered the real 5000ah ones?

The above comment was really unnecessary, I am as right as I can be from this side of the story (and it can also be good to turn left LoL!). The_Fat_Controller didn't posted actual photos of his cells until half an hour ago, he just made a comment. He also didn't say if he measured capacity with a NOR test, and he should because if the cells score low that is valid evidence to win a dispute.

I’ll measure my cells. The original Lii 40 and the new Lii 50. On the Opus BT 3100, this is only an indicative measurement, but will show if there is a significant capacity difference.

I will run Nor test as Barkuti suggested… and see if it confirms the same result
(I may be some time)

liitokala Official Store (Store No. 217753)

That’s the same link i ordered from…. maybe my first charge result was invalid i am running Nor Test right now 115mah in… when it finishes i will post result…

Edit:
Damnn, 4 hours in still above 4v
Edit: uhhh
14 hours in 3.5v