Precision and Digital Battery Charger Installation

Charger Location

  1. Never place charger above battery being charged; gases from battery will corrode and damage charger.
  2. Never allow battery acid to drip on charger when reading electrolyte specific gravity or filling battery.
  3. Do not operate charger in a closed-in area or restrict ventilation in any way.
  4. Do not set a battery on top of charger.
  5. Do not mount the charger below the waterline of the boat or directly adjacent to fuel tanks.
  6. Each DC output cord is six feet long. Make sure that all DC output cords can reach the batteries and that the AC power cord can reach a power source. When using an extension cord, make the AC connection to the charger outside of the battery compartment as far away as practical to reduce the risk of a spark igniting gases in the compartment.
  7. Do not shorten the DC output cords, as this can affect charger output. If the DC output cords are not long enough, they may be lengthened by splicing and soldering 12 AWG (minimum) wire. Each splice should be covered with dual wall adhesive-lined heat shrink tubing to protect the joint from corroding. The splice should be made between the fork in the output cable and the fuse holder. The fuse holder should always remain within 7” of the battery terminals. The maximum extension length is 15 feet. You may contact the Minn Kota Service Department with any questions.
  8. Even though the Minn Kota charger is capable of operating in a high ambient temperature environment, a minimum of six inches of unobstructed area should be allowed on all sides of the unit for proper air circulation and cooling. Proper cooling and circulation will allow the charger to operate at peak efficiency.

Mounting the Charger

Due to the weight of the charger and the impact that boats routinely endure, take the time to securely mount the charger to prevent damage. Mounting with nuts, bolts and washers is preferable to mounting with screws.

  1. Use the largest diameter bolts possible and use all four mounting holes.
  2. After marking the locations, set the charger aside and drill the holes.
  3. Apply a marine grade silicone sealant in each of the drilled holes to create a waterproof seal.
  4. Then secure the charger in place using the mounting hardware.

Connecting the Batteries

Each Output Bank is independent and isolated from one another and the AC Input. The Minn Kota charger can charge independent batteries or combinations of batteries hooked in series or parallel without disconnecting the batteries from any switches or Jump Wires joining the batteries.

Inline Fuse

Each output cord has inline fuses on the RED and BLACK leads located near the ring terminals. These fuses serve as protection from surges and short circuits caused by a damaged charger output cable. If a fuse blows, replace it with a 30 amp ATC 32V automotive fuse. Improper battery connections will normally not cause a fuse to blow since this is handled by the internal circuitry of the charger.


Battery Charger Manuals


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