MK 20C On-Board Alternator, 2 Bank
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MINN KOTAMK 20C On-Board Alternator, 2 Bank

Model # 9419847 | Mfg # 1821032UPC # 29402031795

This item is no longer available.


MK 20C On-Board Alternator, 2 Bank

Name Value
Type Battery Charger

Product Overview

MINN KOTA MK 30C On-Board Alternator

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


  • Dimensions: 10 1/2" x 7 1/4" x 3 1/2"
  • Weight: 6 1/2 Pounds
  • Output per Bank: 10 amps
  • Power Source: Alternator DC
  • Flooded Lead Acid Battery Compatible: Yes
  • AGM Battery Compatible: Yes
  • Gel Battery Compatible: No
  • Waterproof: Yes
  • Digital Control: No
  • Saltwater Compatible: Yes

Owner's Manual

 WARNING: This Product can expose you to chemicals including Di(2-ethylhexyl)plthalate, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to


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