Save your car's battery with Battery Brain

Battery Brain uses supposed unique electronic technology to ensure that your car's battery always has enough power to start your engine. This gizmo clips onto your car's battery and constantly monitors the battery power, if it detects that the battery is losing sufficient charge to start the engine, the electric system is disconnected from the battery. Fair love for those drivers constantly forgeting to turn their lights off. Starting at US$39.95.

[Battery Brain]