quick review coilart 21700 4000mah 40 amp=bravo sierra! :FACEPALM:

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snakebite
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quick review coilart 21700 4000mah 40 amp=bravo sierra! :FACEPALM:

this is a 20a cell.
typical overrated rewrap nonsense! it comes close to ratings of the cell it contains and performs as expected from its datasheet.
but coilarts rating is dangerous BS!
at 20a it gets hot.measured 81c and 3751 mah.
at 40a it sags to nothing.
and may very well fail catastrophically.
good thing it has a vent on the bottom.
it does well in versapak sticks and stays cooler than a 25r in the air compressor.
the cell is an ls lr2170sa.
lr2170sa

Edited by: snakebite on 12/23/2017 - 09:00