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Most of the home conversions are using 10-15 car batteries. The high-end sealed units like Optima or Hawker are generally preferred, as they'll handle the abuse of being regularly drained to 10-20% of their capacity w/o dying early. 12 60amp/hour batteries will give about 5kW or 7hp for two hours (good for about 45-50mph in most cars), or roughly 14hp for an hour (good for 65-70mph). 70-100 mi range is pretty typical for the home-brew conversions. The previously mentioned 11sec drag 914 only has a 20-30 mi range, and uses a Porsche 930 gearbox with only third gear installed. I believe he's using more than 12 batteries, perhaps more like 20. The other electric 914 I've seen has a complete 914 gearbox, but he only used 2nd and 3rd gears, doesn't go on the freeway, and gets about 125-130 miles on a charge. A complete charge costs about $0.15, so they're very cheap to run once you get over the conversion costs. This car is using (I think) 12 golf-cart batteries, at $1000 a set. --- Jim Adney <jadney@vwtype3.org> wrote: > On 25 Aug 2005 at 14:49, James Montebello wrote: > > > Under the back seat and in the front trunk you might be able to find > > the room for the 10-12 batteries you'd need. > > Is that really all you would need? Having looked at the battery packs that > were > being put into some of the prototype cars I've seen, I was guessing it was > more > like 3 times that. > > Your number makes this seem much more feasible. > > -- > ******************************* > Jim Adney, jadney@vwtype3.org > Madison, Wisconsin, USA > ******************************* > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com