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Old 01-07-2012, 06:55 PM   #28 (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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Quote:
Originally Posted by IamIan View Post
Best of luck.
Thanks! And thanks for the additional suggestions. One comment and one quick question:

I had another specific suggestion that it may be advantageous to remove the sticks for testing specifically to keep tabs on which cell/s is/are getting particularly hot during charging. Might be a useful data point to have.

But it certainly speeds up the process by leaving everything in place.

Question (pardon my noob-ness):

Quote:
#3>Note the subpack internal resistance estimate for each stick ... what is the change in terminal voltage from the resting state to the discharging state at a known amount of amps ... V=IR ... this can be noted during the above discharge capacity test.
Good idea. But since voltage begins falling as soon as the discharge begins, at what point do I record V to get a best estimate? 1 second after starting to discharge? 10?
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Project MPGiata! Mods for getting 50+ MPG from a 1990 Miata
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Mitsu mods: 70 MPG in my ecomodded, dirt cheap, 3-cylinder Mirage.
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www.MetroMPG.com - fuel efficiency info for Geo Metro owners
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