You can use regular'car' batteries. The problem is only in the amount of power they provide by weight. Lead acid batteries can only deliver about 15-20% of thei

You can use regular'car' batteries. The problem is only in the amount of power they provide by weight. Lead acid batteries can only deliver about 15-20% of their full power (these are example numbers not precise.) So let's say you can go full speed but only for ten minutes, then slower and slower. Lithium batteries can provide about 80% of their full power, so same vehicle as above, but 60 minutes of full power. There are of course lots of other pros and cons to available batteries.($$$) But range to weight, is the most basic.