20 | minnkotamotors.com
©2017 Johnson Outdoors Marine Electronics, Inc.
GENERAL MAINTENANCE
FREQUENTLY ASKED QUESTIONS
1. Can I charge two batteries on one charger bank?
• Yes, but it is not recommended. It takes double the amount of time to charge two batteries and could result in an error being
displayed if the batteries take too long to charge.
2. Do I need to disconnect the series or parallel battery connection(s) when using Minn Kota chargers?
• No, the battery jumper wire(s) can remain in place for both types of wiring.
INLINE FUSE
The output cord has an inline fuse on the RED end. The fuse serves 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.
3. How warm do Minn Kota battery chargers get?
• The Minn Kota battery chargers can reach 150° F. They may get warm in an enclosed area. The maximum recommended
room temperature for charging batteries is 122° F. If the charger seems to get “hot,” try opening a hatch to help cool the
charger. When the charger is hot, the output current will drop to protect the charger and the battery.
4. What size fuses are used on Minn Kota battery chargers?
• Chargers with a yellow fuse holder use a 30 amp AGX 32V automotive fuse. An AGC can be used but may not fit as well as
the AGX. Chargers with a red fuse holder use a 30 amp ATC 32V automotive fuse.
5. What Batteries can be charged by a Minn Kota charger?
• Minn Kota Chargers can charge 12 volt 6 cell lead-acid batteries. Minn Kota D Series Chargers and Minn Kota
Portable Chargers work well with LEAD-ACID: FLOODED/WET CELL, MAINTENANCE FREE, and AGM/STARVED
ELECTROLYTE. Minn Kota PC series Chargers have optimized charging for LEAD-ACID: FLOODED/WET CELL,
MAINTENANCE FREE, GEL and AGM/STARVED ELECTROLYTE battery types. You should verify with your Battery’s
Manufacturer the maximum Amp input for your Battery. The Amp Hour or AH rating for your battery should be in the range
indicated below for the per bank amp output of the battery charger selected.
Model
Battery Charger Output Per Bank
Battery Amp Hour Rating
MK106D
6 AMPS
24-125 AH
MK210D
5 AMPS
20-125 AH
MK220D
10 AMPS
40-125 AH
MK315D
5 AMPS
20-125 AH
MK330D
10 AMPS
40-125 AH
MK330DS
10 AMPS
40-125 AH
MK440D
10 AMPS
40-125 AH
