Hello. I have a G3 upgraded 1400cs, and I have a bad battery I think. Right now I am running Battery Amnesia, and the graph has MANY periods of time where the voltage fluctuates and I am taking that to mean that even though I could get some life out of it, I want to look to rebuilding this battery. Do Ni-MH batteries contain a smart controller? If not, I was thinking about making a battery pack that takes standard rechargable Ni-MH batteries available in the store and matching the 12V that I see at full charge in this pack, and then installing a diode to prevent the powerbook from charging the pack if I had inserted standard batteries in it (such as alkalines in a pinch). I suppose that I could also make it switched.
I was wondering if anybody had details about rebuilding batteries, designing a custom pack that uses standard rechargable cells, or if anybody had detailed info about the 1400c pack.