12V Digital Battery Alternator Tester Car Vehicle Diagnostic Tool with 6 LED Lights Display Battery Testers For Car Motorcycle 12V led digital battery mate is a simple but efficacious battery testing tool which can determine the battery state, it’s easy to use and be understood. Main Functions: 1. Checking charge level 2. Functional test of dymano 3. Checking battery starting capability 4. Battery overload display
