Nice,
facinating,
I just measured the weight of 3 eneloop AAA cells.
2 good ones measure 11.77 and 11.72 gram, fully charged
and one that is bad (high Ri) also charged, measured 12.28 gram
?????
Later I will measure one of these good ones when it is empty.
The bad one (that is heavier!) bounces more...
????