Alternator chargers put every ounce of power to good use. While on the water, they take your alternator's excess power and redistribute it to your trolling batteries. You get an extra boost, and better battery life.

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
3-Year Warranty: All battery chargers come with a full 3-year replacement warranty
Supported Battery Types: 12v AGM, 12v Flooded Lead Acid

Specs-

Model Alternator Charger MK 3 DC - 3 bank x 10 amps
Product Code 1821033
UPC 0029402031801
Charger Style On-Board
Number of Banks 3
Output per Bank 10 amps
Product Weight
8.5 lb
Battery Type 12v AGM, 12v Flooded Lead Acid
Power Source Alternator DC
Waterproof Yes
Digital Control No
Low-Line Voltage Compensation No
Automatic Temperature Compensation No
Battery Equalization No
Battery Type Selection No
LED Display Yes
Saltwater Compatible Yes
Battery Connection Ring Terminal
Warranty Three-Year Warranty