Car Battery Tester 12V Load Tester, TOPDON BT100 100-2000 CCA Automotive Alternator Tester Digital Auto Battery Analyzer Charging Cranking System Tester for Car Truck Motorcycle ATV SUV Boat Yacht. TOPDON BT100 automotive battery analyzer can run tests on 12V lead-acid batteries including regular flooded, AGM flat plate, AGM spiral, GEL and EFB batteries with a much wider test range (100-2000 CCA).