You and MetroMPG are beginning to inspire me with your cheap, backyard electric conversions.
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Originally Posted by Nerys
Just how many amps would I need to go 60 miles? How do I do such math? I am tinkering with the idea of using NIMH batteries specifically 10 or 12 amp D cell NIMH's ie 600 cells would give me 72volts and 100amps. With nimh I can use ALL of the power no 50% usage limit as with Leads. Then the other question. How the the heck would you charge 600 cells :-(
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You can do some basic sizing by using thse
excel spreadsheets from Don Cameron's
website.
60 miles @ highway speeds is in the realm of
advanced EV technology. If you want to use a donor car, you will probably need a high voltage AC drive system and a lithium ion battery pack. To build a car around this technology will probably cost you $30-40,000, not the $1000 DC conversions that are popular. You
might be able to use a truck w/ DC technology, but it would be close. Also, it will take ~6-9 hours to fully charge a depleted car...sucking massive amounts of energy while doing so.
NiMH cells are pretty rare beyond the Prius and very few "smart" chargers seem to exist for the technology. I think Ovonics (GM) bought up all the patents for large scale NiMH's and stamped them out of the market place.