Description of Schumacher 12V Battery Charger with Engine Starter, Boost, and Maintainer - 200 Amp/40 Amp - Ideal for Cars, Trucks, SUVs, RV Batteries
RELIABLE POWER: 40 Amp quick boost mode and 200 Amp engine start for cars, trucks, SUVs, marine vehicles, and RVs; compatible with standard and AGM batteries. AUTO AMP ADJUST: Microprocessor-controlled to automatically adjust the amperage rate to charge and maintain; multi-stage charging for precision, safety, and battery life. BUILT-IN TESTER: Battery and alternator tester provides charge level and helps diagnose electrical problems; auto voltage detection feature identifies 6V or 12V batteries. FLOAT MODE: Float mode monitoring automatically maintains optimum battery charge. SAFE AND RELIABLE: Reverse hook-up protection helps prevent damage to battery.