How do I check / charge these batteries?

KITROBASKIN

Flashlight Enthusiast
Joined
Mar 28, 2013
Messages
5,439
Location
New Mexico, USA
Interesting reading.
Based on reading about LFP batteries on diysolarforum, indications are that they are at their most fragile when fully charged; that the gain in capacity by charging to the max (3.65V) is not worth it for experienced users who prefer long life over ~2% (guess) increase in stored energy.

Hoping to read on this thread how these batteries perform with your flashlights.
 

chaosdsm

Enlightened
Joined
Feb 11, 2014
Messages
319
Location
Florida
the gain in capacity by charging to the max (3.65V) is not worth it for experienced users who prefer long life over ~2% (guess) increase in stored energy.

Hoping to read on this thread how these batteries perform with your flashlights.

I did one custom cycle on the 3642mAh battery, I discharged it to 2.8V @ 1.5A then charged it to 3.65V at 2A, discharged it @ 1.5A to 2.6V which showed 4067mAh for that discharge cycle, then recharged to 3.60V at 2A and ended with 3656mAh....

Just got the copper bar in to make the + & - end pieces & the coupling(s) for 2 or 3 batteries in series. Now I just need some time on the lathe!
 
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