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Old 11-27-2007, 12:09 PM   #249 (permalink)
MetroMPG
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Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 22,530

Blackfly - '98 Geo Metro
Team Metro
Last 3: 70.09 mpg (US)

MPGiata - '90 Mazda Miata
90 day: 54.46 mpg (US)

Even Fancier Metro - '14 Mitsubishi Mirage top spec
90 day: 70.75 mpg (US)

Appliance car Mirage - '14 Mitsubishi Mirage ES (base)
90 day: 62.14 mpg (US)
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01-16-2007, 11:30 Am

Thanks - I seemed to recall reading something to that effect, so that's what we did/are doing. I filled to approx halfway between the plates and the filler neck and we started charging last night.

So far so good - the ones we've charged seem to be resting around 6.4 volts (I think that's good - it's half of 12.8 !)

I'd like to do some kind of load test before putting them in the car though. Holding voltage is one thing. Delivering amps is another. I don't suppose you want to recommend a cheap/effective load test method to check for duds?

I've read 2 ideas: 1) buy a load tester; 2) just connect each battery to a load for the same amount of time (eg. the car's motor) and record the voltage sag while running, and the resting voltage after running. Duds will drop voltage more compared to the non-duds.
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Project MPGiata! Mods for getting 50+ MPG from a 1990 Miata
Honda mods: Ecomodding my $800 Honda Fit 5-speed beater
Mitsu mods: 70 MPG in my ecomodded, dirt cheap, 3-cylinder Mirage.
Ecodriving test: Manual vs. automatic transmission MPG showdown



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has launched a forum for the efficient new Mitsubishi Mirage
www.MetroMPG.com - fuel efficiency info for Geo Metro owners
www.ForkenSwift.com - electric car conversion on a beer budget
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