2-in-1 Device - Starts and charges batteries Immediate Charging Power - Delivers 250-amp 12V engine start, 50-amp 12V boost charge, 25-amp 6V/12V boost charge, and 10-amp 12V charging Precision Manual Control - A 135-minute timer gives users complete control over every stage of charging 50A & 25A Boost Charge - Quickly adds charge to deeply discharged batteries Wide Compatibility - Works with gas and diesel vehicles, 6V and 12V batteries, including standard, AGM, gel, and deep-cycle battery types Amp Meter - Analog ammeter for visually monitoring charging Works with Most Vehicles - Ideal automotive battery charger and engine starter for motorcycle, ATV, car, truck, SUV, RV, and marine batteries AC Powered - This unit, with 6-foot power cord and front-mounted booster cables, must be plugged in during use Heavy-Duty Construction - Features a sturdy steel case, heavy-duty clamps, a retractable handle, and solid, compact wheels Complete Package - Includes (1) CMXCESM233 Manual Timer-Controlled Wheeled Battery Charger and Engine Starter, (1) user manual