How many batteries do I need to run my car? Do more batteries increase the range of my car?
Hi, Al - The number of batteries depends entirely on the car, and the voltage of your system. There are people with 72 volt systems, and others with 320 volts.
DC conversions that run on the freeway tend to have 120 volts or more.
AC conversions tend to have something like 300 volts, optimally.
More batteries do not increase the range of your car, unless you are wiring them in parallel. More batteries mean more VOLTS, while range is determined by AMP HOURS (AH) - and other things.