It has been my experience that only one of the 16 cells in the
battery pack have failed when the battery pack fails.

I've been robbing cells from other packs to keep my best pack going.

That's ok, but I hated adding less powerful cells to my better packs
so decided to order some powerful new 1.2 V cells that are even better
than what they replace. I got them at

http://www.batterystation.com/


DKid.