LED Lights on Digital Chargers (2010-present)

Normal LED Indicator Meanings

Each bank has the following LEDs:

  • A solid RED LED indicates there is an issue with the battery connection.
  • A flashing RED LED indicates an error.
  • A solid YELLOW LED indicates the charger is in Bulk charging.
  • A flashing YELLOW LED indicates the charger is in Absorption Mode.
  • A flashing GREEN LED indicates battery is fully charged, in Maintenance Mode and ready to use.
  • A solid GREEN LED indicates battery is fully charged, in long term Maintenance Mode and ready to use.

Multi-Stage Charging

Minn Kota’s Multi-Stage Charging delivers a fast, precise charge profile by automatically controlling current and voltage without overcharging your batteries.

  • Bulk: During this stage, the charger delivers full current until the battery reaches ~75% charge (YELLOW LED) is lit to indicate the battery is charging in the Bulk Mode.
  • Absorption: The charging current tapers down while the battery voltage is held at 14.4V (at 77° F). A flashing YELLOW LED indicates the battery is charging in the Absorption Mode.
  • Maintenance: When the battery reaches full charge, the charger voltage is reduced. A flashing GREEN LED is lit to indicate the battery is in Maintenance Mode and ready to use. After 24 hours, the charger automatically turns off and a steady GREEN LED is lit to indicate the battery is in long term Maintenance Mode and ready to use. The charger will automatically resume charging when the battery voltage drops below 12.6V.
  • For more information, you can also refer to the owner's manual.

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Error Conditions

The LEDs can indicate why the charger is not working.

  • Error Condition: RED LED is lit. Check connection.
    Solution:
  • Error Condition: RED LED is flashing. Temperature sensor error.
    Solution:
  • Error Condition: RED LED & GREEN LED are flashing. Battery may be damaged.
    Solution:
    • Check to make sure there are not any loads on the battery.
    • Check the fluid in the battery and add fluid if necessary.
    • If the battery voltage does not rise above 10.5 volts in 3 hours, or if the absorption voltage does not increase to 14.4 volts (at 77F), the charger bank will shut down and will not charge. The battery should be tested.
    • If you still have issues, contact Minn Kota Technical Support.
  • Error Condition: Indicator LEDs will not illuminate.
    Solution:
  • Error Condition: Charger powers up and then turns off.
    Solution:

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Resources

  • Digital On-Board Chargers
    Models MK 106D, MK 210D, MK 220D, MK 315D, MK 330D, MK 440D

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