✅ 【Check method】: Alternator state check, Battery state check,check before charge and overload display.
✅ 【Alternator check】: 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.
✅ 【Multi-language】: Multi-language User Manual: English, German, French, Spanish, Italian, Dutch, Polish, Slovak, Czech, Russian.
✅ 【Reverse protection】: Reverse protection function prevents burnout caused by misoperation between the (+)battery post and (-)cable terminal. Pure copper wire and clip make excellent conductivity and high sensitivity.
✅ 【Wide use】: Car battery tester is for all 12V charging system, include Regular flooded, AGM flat plate, AGM spiral and GEL batteries for vehicles, forklifts,hybrid cars,SUVs, Pickups, Boats, RVs,Motorcycles,travel Trailers(DO NOT support 24V trucks!).