There are a few things you need to do in order to make a 12 volt car battery. The first is to find a 12 volt car battery. This is the type of battery that is used in most cars. You can find these batteries at most convenience stores and auto parts stores. The second thing you need is an adaptor. This adaptor will allow you to use the 12 volt power from your cigarette lighter or other electrical outlet to power your car battery. The last thing you will need is a charger. This charger will allow you to charge your 12 volt car battery.
