Cars, trucks, RVs, and motorhomes run dual 12-volt batteries for various reasons. Depending on how you wire a two-battery 12-volt system, the result can be a 12-volt system or a 24-volt system—or even ...

Picture this. You're ready to drive around town in your hybrid car and realize you left the headlights on — oops. This could mean a couple of things, but there's a pretty good chance that the battery ...

All modern vehicles rely on a battery system to help get the wheels moving. For most cars with internal combustion engines, these devices are 12-volt batteries. The vehicle depends on the battery to ...