Cartman 12V Car Battery & Alternator Tester - Test Battery Condition & Alternator Charging (LED indication)

LED display indicates condition, for 12V battery only.
Alternator state check, battery state check, check before charge and overload display.
Alternator check : accelerate your engine to 2000 rpm when the green light is lit ,charging circuit is ok.
Battery check: indicate the percentage charging in the battery .
Charger check: when green light is lit, charging is complete.