[BobBoyce]

I should add, NiMH battery technology was considered such a threat to the automotive and oil industries, that GM bought controlling interest in US Ovonics, the patent holder, and used that as leverage in a lawsuit against Panasonic and Toyota. Panasonic had developed a prismatic NiMH cell and went into production in 2002. Toyota used those cells in the RAV4 EV and the Prius. That cell design is what tripled the charge/discharge rate of NiMH cells. Panasonic and Toyota settled out of court and all of the unsold RAV4 EVs had to be scrapped. GM scrapped their EV1 cars at the same time. Look for the movie, "Who Killed the Electric Car". My daily driver has those Panasonic prismatic cells, and I have 2 spare traction packs ready and waiting. You can find them at junkyards for about $500 when cars that use them get wrecked or scrapped out. The BMS and a battery computer are built into the traction pack!