Perhaps you are wondering if a 36V cart can be made into a 48V cart. The answer to this question depends on how much battery power you have in your 36V golf cart. In order to convert it to a 48V golf cart, you need four 12-volt batteries and a 48V controller with a higher current limit. It is important to know the differences between a separate excited motor and a series wound one. The latter allows you to get unique features such as rollaway protection and regenerative braking.