The BT508 is powerful yet, lightweight battery and electrical system tester that uses Adaptive Conductance, an advanced battery analysis method, to produce a more accurate examination of the battery’s cold cranking ability and reserve capacity, vital to determining a battery’s true health. Download the free and easy-to-use mobile app, available for iOS and Android devices, to use with the BT508 to perform testing and display test results. The BT508 package includes a wireless Bluetooth vehicle communication interface enabling battery and electrical component registration.