Why do people us 6v batteries in their electric cars and not 12v or 24v? And what are the average power requirements for the average motor that is used in a converted electric vehicle?
Hi, Aaron - In DC electric car conversions, with very simple inexpensive controllers, 6v batteries conserve battery power better than higher voltage batteries, so your range ends up being longer with 6v batteries.
In AC EV conversions, 12 volt batteries are more common.
As for 24 volt batteries, I've never seen them.
Power requirements? People tend to put at least 120 volt systems in their medium sized cars. (A small car like a VW Bug or a Geo Metro can get by with a 72 or 96 volt system, but it's not going to be a tire-burner; )
As for amp-hours...there's a trade-off. The more amp-hours a battery has, the longer it can run your car, but the heavier it will be. There's a sweet spot, generally somewhere around 200 amp hours, that most people use.
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