Battery Tester for use in Cigarette lighter/Auxiliary ports.
The Battery Saver™ Digital Battery Tester is easy to use and works on 12 volt and 24 volt vehicles. It monitors the exact voltage of the battery, tests how sulfated a battery is and indicates how much life is left. It can also test the vehicle’s charging system to show that the Alternator or Generator is working properly and maintaining proper battery voltage.
Built into the unit are 2x USB charging ports for devices, from your Smart Phones to Gaming Devices.