50A & 25A Boost Charge - Quickly adds charge to deeply discharged batteriesWide Compatibility - Works with gas and diesel vehicles, 6V and 12V batteries, including standard, AGM, gel, and deep-cycle battery typesAmp Meter - Analog ammeter for visually monitoring chargingWorks with Most Vehicles - Ideal automotive battery charger and engine starter for motorcycle, ATV, car, truck, SUV, RV, and marine batteriesAC Powered - This unit, with 6-foot power cord and front-mounted booster cables, must be plugged in during use