Join Date: Sep 2005
Bikes: Windsor Fens, Giant Seek 0 (2014, Alfine 8 + discs)
Mentioned: 6 Post(s)
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Bad idea. Generally drill packs are made with C cells (or 2/3 C cells). Charging AAs at that current will fry them.
Also, the more batteries you charge at a time, the less accurate is the charge on every cell. If you can, buy the 10 cell charger from batteryspace.com But if you want to charge as a pack, buy a 12v pack charger from there.
Work: the 8 hours that separates bike rides.