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Old 09-19-2010, 09:30 PM   #12 (permalink)
EV test pilot
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Join Date: Jan 2008
Location: Oconomowoc, WI, USA
Posts: 4,435

Electric Cycle - '81 Kawasaki KZ440
90 day: 334.6 mpg (US)

S10 - '95 Chevy S10
90 day: 30.48 mpg (US)

Electro-Metro - '96 Ben Nelson's "Electro-Metro"
90 day: 129.81 mpg (US)

The Wife's Car - Plug-in Prius - '04 Toyota Prius
90 day: 78.16 mpg (US)
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It isn't a BMS, but lately, I have been using a simple battery monitor a friend designed.

It's an LED bar graph that shows the voltage of each of four batteries. (This one is a double, it will do up to eight 12V batteries.)

Using it, I was able to spot that one battery always started dropping voltage faster than the others. I replaced it and the car seems to be performing better since then.
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