Here are some pictures and what I found out about the capacity of these cells:
G1 (blue without marking) 1400mAh
G2 1600mAh
will add picture when i find one. I am 99% sure that i have some...
G3 1800mAh
G4 (or anything with a 4 in the first 2 digits) 1950/2000mAh (depending on...
For my "dead" cells (<1,0V) I put them into a holder attatched to a lab powersupply (set to 3A/4V) for about a second or two, if a cell immediately rises up to ~3V(on the display of the powersupply) they tend to be good, if a cell rises up to 4V and the current drops or it doesn't draw any...
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