This cell has “40A max” on the wrap, which is an impossible overrating as there are no 18650’s available with a capacity of 3000mAh or higher that have a current rating over 20A.
If “max” is some sort of “pulse” rating it is useless because we don’t know the pulse length, time between pulses, and the criteria used to set the rating. It cannot be used to compare this battery against any other.
The 3100mAh capacity of this cell is also exaggerated. It is a 3000mAh cell.
The wrap has “IMR18650” on it but this cell does not use the chemistry associated with the IMR model number prefix. It uses the chemistry sometimes indicated by the INR prefix.
Its appearance is identical to the LG HG2 but this Brillipower doesn’t perform quite as well as my reference HG2’s. It does perform about as well as a lot of the HG2’s being sold now though and better than it did on my previous test when Brillipower was obviously using lower grade cells (something they do often).
I am rating this Brillipower cell at 20A and 3000mAh.
I was very close to giving this cell a Do Not Buy recommendation but the use of cells that were not obviously, but might still be, a lower grade means they are just not a great choice considering what else is available.
The two cells that were tested were purchased for that purpose by me.
Test results, discharge graph, photos: https://www.e-cigarette-forum.com/forum/threads/bench-retest-results-brillipower-green-3100mah-40a-18650-preposterously-overrated-not-imr.826025/
All my test results to date: https://www.e-cigarette-forum.com/forum/blog-entry/list-of-battery-tests.7436/
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