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Old 05-06-2008, 09:45 PM   #648 (permalink)
MetroMPG
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Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 12,533

Blackfly - '98 Metro
Team Metro
90 day: 67.07 mpg (US)

ForkenSwift - '92 Metro EV
90 day: 125.37 mpg (US)

U.F.O. - '00 Insight
Team Honda
90 day: 85.75 mpg (US)
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Hi RarestAce - thanks for the compliment. The 400A controller is great. It's nice to have the extra power when needed, which is rare, but better than willing the car forward when more accel is needed. FYI, accel to 50 km/h is 21 seconds vs. about 36 seconds with the 225A unit.

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Update!

Ivan and I will be pulling the car apart probably next week to clean it up - paint the motor compartment, components, and generally tidy up the installation. But before that we wanted to get a better picture of the health of this set of batteries.

So... yesterday we installed the LED pack monitor I talked about back here.



It's awesomeness can't be underestimated. Up to now, we've only been monitoring a single battery in the pack - the one we thought was the weakest. Rule of thumb: avoid drawing the weakest batt below 5.25v under load.

Well, oops. Within 15 feet of driving, the dancing equalizer-like LEDs showed us several things, not the least of which was we were NOT monitoring the weakest battery all that time. We had a true dud in the pack that fell on its face under the lightest load.

I'm going to post pics, and maybe make a short YouTube vid about this handy device. It's very cool to watch, and immensely useful. Every EV should have one (esp. if you've got an older, less balanced pack).
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www.MetroMPG.com - fuel efficiency info for Geo Metro owners
www.ForkenSwift.com - electric car conversion on a beer budget
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