[sdc19982002]

12 volt car batteries and 12 volt deep cycle batteries are two different things, you will get alot longer run time with deep cycle. The cart will not run when battery voltage drops below a certain amount. In your case 29 volts is it. The difference between the 12 volts and the 6-6volts is the amount of available amp hours. I'm sure someone will chime in with a more detailed explanation.