Save yourself from all the hassle and frustration that comes with a drained car battery, thanks to the incredibly convenient Koolatron 12V Battery Saver! This high-tech cable prevents the drainage of your car's battery when 12V accessories are plugged into the vehicle's cigarette lighter. When the Koolatron 12V Battery Saver senses when your vehicle voltage drops below 11 volts it immediately shuts off the current to all plugged-in accessories. The 12 V Battery Saver gives you peace of mind, ensuring you will always be able to start your vehicle.
