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Old 01-14-2011, 12:23 AM   #22
Ground Loop
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Join Date: Dec 2003
Location: San Diego, California, USA.
Posts: 517
5 yr Member
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Thanks for the kind offers, L3Research and Jason.

I think you might be giving me too much credit here -- I'm not messing with the BMS, charger, or anything complex.

I'm just substituting 9S LiPo (33.3v nominal) for the 30S NiMH (36v). All the circuitry, and as much of the case as I can retain, stay exactly the same.

The 9S LiPo will get down to 28v safely, 27 is probably okay if they're balanced.
So the question is, how does the Segway allow the NiMH to get under 1v per cell? 0.9v?

The other thing to watch out for is starting with fully charged LiPo and then going on a long descent.. the Seg would probably overcharge them with regen power. Who knows; I'm not going to try it.
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