with my C9000 i did triple cycles, break-ins, refresh&analyze's, and again break-ins and refresh&analyze's, stored the cells in between for 2-3 days offline or in parallel, etc etc, all in an effort to recover the highest capacity possible. i do have all the details on a sheet of paper but one would be only interested in the result or my conclusion i guess?
please see below table for a summary in form of averaged capacities:
averaged capacitiesEneloop pack batch |
NEW break-in |
NEW |
1.0YRS break-in |
1.0YRS analyze |
CHANGE |
4-pack AAA 11-05 LF |
844 mAh | 823 mAh | 782 mAh | 786 mAh | clear loss |
4-pack AAA 11-05 LG |
824 mAh | 824 mAh | 818 mAh | 815 mAh | minimal loss |
8-pack AA 10-11 UQ |
2011 mAh | 2037 mAh | 2030 mAh | 2038 mAh | zero loss |
Note: I performed triple cycling with all packs in order to learn about the actual capacity prior to the start of the (repeated) break-ins and their subsequent refresh&analyze's. Interestingly, cycling a cell repeated times does increase the actual capacity a bit, although this observation is not a fact or 100% consistent. Cycling a cell gives you a reference point so that you know by how much the break-in improved the capacity. I didn't include the cycling details, (4+4+8)*3= 48 numbers!!, in this post yawn.
In blablah words, after 1.0yrs of moderate usage i was able to reset 100% fully the AA-sized Eneloops. Unfortunately i do notice a loss of capacity in the AAA-sized Eneloops. Maybe the AAA cells —i had bought them in bulk from an obscure Geman ebay seller— were fake or something.
From now on, i will reset the cells more often, say every 4 or 6 months, instead of 1x per year!!