The Schumacher 2A 6V/12V Fully Automatic Battery Charger and Maintainer brings reliable battery-charging power for your motorcycle, power sport, and boat batteries. It's fully automatic and easy to hook up with the quick-connecters. Microprocessor-controlled, multi-stage charging automatically adjusts the amperage rate to charge and maintain your battery for maximum precision, safety, and battery life. Float-mode monitoring automatically maintains optimum battery charge. Auto voltage detection recognizes your 6V or 12V battery for proper charging. A charging-status LED indicator gives you updates at a glance. Reverse-hookup protection ensures your Schumacher charger won't operate if the clamps go on the battery in reverse; an LED indicator will flash to let you know. The non-conductive, rust-resistant case provides durability you can count on every time. For standard, AGM, and deep-cycle batteries. Includes battery-clamp quick-connect, ring-connector quick-connect, and 12V accessory plug quick-connect. Mfrs. 2-year limited warranty. Microprocessor controlled Automatic, multistage charging Float mode charge monitoring Auto 6V or 12V detection Quick-connect harness Charging-status LED indicator Reverse-hookup protection Non-conductive, rust-resistant case