With a low-profile enclosure and a waterproof corrosion-resistant design our On-board Alternator Battery Chargers use current from your boat's alternator to re-charge trolling batteries when the main engine is running. Master cutoff switch turns charging off while the engine is not in use. Experience effortless accurate charging with up to 30 amps of total output.
Charge-on-the-fly: After the boat's alternator has fully charged the starting battery, this technology will reroute the alternator power to the trolling motor batteries Battery Protection: extends battery life by protecting your battery from frequent deep discharges LED Indicator Lights: Inform of charge stage, maintenance mode status, error notifications and full charge Waterproof Construction: All on-board chargers are built to be waterproof, shock-resistant and vibration-resistant