Selectable Battery Chemistry- has battery chemistry selection with proper charge algorithm for lead-acid, flooded or sealed maintenance free, AGM and Lithium batteries. Four-step charging program: Initialization, Bulk Charge, Absorption Mode and Float Mode. Automatically switches to float/maintenance voltage after fully charging the battery. If the battery voltage drops too far under load, full charger output power resumes. Solid state two color LED indicates stage of charger. Spark proof.. Reverse polarity protected. 12" output cord. Five-year manufacturer's warranty.. Output: 12-Volts @ 800mA. Input: 120VAC @ 50/60Hz.