Get an extra boost of power and better battery life. Our Alternator chargers use charge-on-the-fly technology to redirect excess power from your alternator to your trolling batteries.
Alternator chargers boost your trolling batteries while on the water. They take excess power from the outboard's alternator and deliver it to your trolling batteries to extend run times, decrease on-shore charge times and increase battery life.
Frequent deep discharges can damage your battery over time. With the boost you get from an Alternator charger, you avoid those deep discharges - in addition to shortening charge times and extending battery life.
LED indicators display power-on, charging and check connection.
All of our on-board chargers are built tough, with waterproof, shock-resistant and vibration-resistant rugged construction. Plus, they’re saltwater-tested to fully combat corrosion.
For use with 12-, 24- and 36-volt systems with 12V/6 cell batteries that are Flooded/Wet Cell, Maintenance Free or Starved Electrolyte (AGM) only.
Minimum Alternator Output:
MK 1 DC is 12 amp min
MK 2 DC is 25 amp min
MK 3 DC is 35 amp min
3-Year Replacement Warranty
We stand behind every on-board battery charger with a full three-year replacement warranty.