Minn Kota Onboard Battery Chargers deliver longer run times and shorter charge times, so you get more quality time on the water. Selectable battery type produces a charge curve optimized for your battery, from traditional lead acid to new high-demand lithium (LiFePO4) batteries. Battery type selector for a safe, protected charge Supports 12V AGM, 12V flooded lead acid and 12V lithium (LiFePO4) Automatic temperature compensation senses and adjusts to ambient temperature fluctuations Low-line voltage compensation delivers consistent charge even if outlet produces less than 120V Digitally microprocessor-based control, can even wake dead 12V lithium (LiFePO4) batteries from standby automatically LED indicator lights Waterproof, shock-resistant and vibration-resistant construction Battery equalization cleans and protects your lead acid battery every time you plug in