I like the switchoff point idea, definitely a great way to keep things simple and still accomplish a PHEV type setup. With a 1 amp current flowing to the pack, a voltage in the 160's *might* be premature, but would be safe. As long as the pack is well balanced, I figure that a trip point very close to the final charge voltage might be more approrpriate. Testing of course would be needed, I've got plans of adding a parallel pack or going to a lithium PHEV setup and if I stick with NiMh this is definitely a very cost-effective way to go. I'm going to have to look over your switchpoint parts to the schematic a bit more when I have the time to look up parts and understand them a little better to understand how this switching section of the electronics works.
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2000 MT Insight "Silver Sipper"
2000 MT Insight Silver "Clone"
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