Schumacher Electric 15A Car Battery Charger and Maintainer, Battery Tester, 6V/12V Sport, Auto, and Marine Batteries, SC1359

Reliable Power: Delivers 15 Amp charge and 3 Amp to maintain car, truck, SUV, RV and marine batteries; compatible with standard AGM, and deep-cycle batteries Smart Charging: Microprocessor-controlled automatic amperage rate adjustment and multi-stage charging for added precision, safety and battery life Led Display: Includes digital display, LED light indicators, and simple button controls for ease of use Voltage Detection: Automatically detects 6V or 12V batteries Safe & Reliable: Reverse hook-up protection prevents the charger from operating if the clamps are reversed