Quote:
Originally Posted by ronhug
what about range and batterys, if i use 4, 6 volt 200ah batteries or 4- 12 volt 35 ah ?
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6v batteries like golf cart batteries? using 4 of them you should get 20-30 miles of range, of course if you have them wired up for a lower voltage then you will have more loss in the wires then if you have it wired up for a higher voltage.
Off the top of my head I can't think of any 12v 35 amp hour deep cycle traction batteries, but just off the numbers I would say 7-12 miles with that set of 4 12v batteries.
If you go to EV albums and look at motorcycles on there, a large number of people list their watt hours per mile, I tend to figure the 150 watt hours per mile is a safe number to use, of course it you will get much better range the slower you go, but for real use I think the 150wh is going to give you a realistic range so you don't kill your pack by trying to commute 30 miles with a pack that "should give you 30 miles" because you under estimated.
Also batteries for starting a car should not be used, deep cycle batteries are what you want and traction batteries are better, traction batteries are designed with heavier plates for higher loads and deeper cycling, golf car, fork lift and utility vehicle batteries all are traction batteries, trolling motor batteries and RV deep cycle batteries can work if you use the lightly.