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Jan 23rd, 2013
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Blowing fuse when hooking up trolling motor battery? #12669444
03/12/18 10:32 PM
03/12/18 10:32 PM
Joined: Oct 2009
Posts: 273
LAKE ATHENS TX
D
DPDALAN Offline OP
Angler
DPDALAN  Offline OP
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D

Joined: Oct 2009
Posts: 273
LAKE ATHENS TX
I have a 24 volt trolling motor and one of the inline 30a fuses for the charger blew. Minkota 315D charger. I took off the cables and cleaned everything up. When I put the charger wire back on the terminal, I get a spark and blow the fuse. When I put the wire on the terminal and then try to install the inline fuse, I get a spark and blow the fuse. This is on the battery that is wired to the other one negative side of this battery to positive of the other battery. Am I just not holding my mouth right, or is there a specific order to put the trolling motor wires and then the charger wires?


Re: Blowing fuse when hooking up trolling motor battery? [Re: DPDALAN] #12669549
03/12/18 11:36 PM
03/12/18 11:36 PM
Joined: Aug 2009
Posts: 1,629
Richland-Chambers
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Capt Craig Offline
Extreme Angler
Capt Craig  Offline
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Richland-Chambers
You have a short somewhere. Start tracing from the batteries to the end.


Capt. Craig Copeland
Licensed by the US Coast Guard

2019 Nautic Star 215 XTS Shallow Bay Boat
Humminbird HELIX 12 CHIRP MEGA SI GPS G2N
Nautic Star Boats Pro Staff (nauticstarboats.com)
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Re: Blowing fuse when hooking up trolling motor battery? [Re: DPDALAN] #12669598
03/13/18 12:01 AM
03/13/18 12:01 AM
Joined: Oct 2009
Posts: 273
LAKE ATHENS TX
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DPDALAN Offline OP
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DPDALAN  Offline OP
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Joined: Oct 2009
Posts: 273
LAKE ATHENS TX
It’s really weird, I know the batteries are wired correct, the cables are labeled from the factory by skeeter. The trolling motor is unplugged. The charger is off. But as soon as I touch the battery terminal with the charger wire, get a spark and blow the in-line fuse. I tried doing positive first, negative first, putting on both and then putting the fuse in, keep getting a spark and blowing one of the fuses. I could see a short making it not charge or the trolling motor not work, but this is making a spark as soon as I connect the 4th wire. Sometimes it will spark when I touch the negative and blow the fuse on the positive terminal.


Re: Blowing fuse when hooking up trolling motor battery? [Re: DPDALAN] #12670563
03/13/18 03:41 PM
03/13/18 03:41 PM
Joined: Mar 2003
Posts: 1,292
Cisco,tx
scruboak Offline
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scruboak  Offline
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Joined: Mar 2003
Posts: 1,292
Cisco,tx
sounds like a problem with a bank on the charger.Id call minnkota service.Move that bank to your starter battery and if it blows the fuse there it is the charger.

Last edited by scruboak; 03/13/18 03:50 PM.
Re: Blowing fuse when hooking up trolling motor battery? [Re: DPDALAN] #12674788
03/15/18 11:25 PM
03/15/18 11:25 PM
Joined: Oct 2009
Posts: 273
LAKE ATHENS TX
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DPDALAN Offline OP
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DPDALAN  Offline OP
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Joined: Oct 2009
Posts: 273
LAKE ATHENS TX
I did exactly that. Moved that bank to starting battery and the fuse immediately blew. Bought a new charger and hooked it up. No problems. All three batteries reached full charge. Got same minnkota 315d charger. Did not even have to drill new mounting holes.


Re: Blowing fuse when hooking up trolling motor battery? [Re: DPDALAN] #12675202
03/16/18 04:20 AM
03/16/18 04:20 AM
Joined: Mar 2003
Posts: 1,292
Cisco,tx
scruboak Offline
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scruboak  Offline
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Joined: Mar 2003
Posts: 1,292
Cisco,tx
Glad you got it fixed..

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