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Battery Charger #13900147 02/24/21 12:55 PM
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chickenfried76 Offline OP
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Has anyone had this happen on their Minnkota onboard charger? Fuse melted into the line? Can I splice a new fuse “box” into the line, or at I better off buying a new charger? If I need a new charger, what do y’all recommend?

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Moritz Chevrolet - 9101 Camp Bowie W Blvd, Fort Worth, TX - Monte Coon (817) 696-2003
Re: Battery Charger [Re: chickenfried76] #13900151 02/24/21 12:59 PM
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SteezMacQueen Online Happy
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You can fix it, but I wouldn’t trust it.


Eat. Sleep. Fish.
Re: Battery Charger [Re: chickenfried76] #13900155 02/24/21 01:02 PM
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tmd11111 Online Content
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Looks more like corrosion from trapped moisture.

Re: Battery Charger [Re: chickenfried76] #13900193 02/24/21 01:32 PM
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chickenfried76 Offline OP
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That lead goes to the cranking battery. The other two banks to the trolling motor batteries are working fine.Which three bank charger are you guys using that’s the most reliable?

Re: Battery Charger [Re: chickenfried76] #13900204 02/24/21 01:44 PM
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BigDozer66 Online Content
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Did you replace the fuse holder and try it?

Like mentioned it looks like corrosion.


2016 Ranger RT188 Charcoal Metallic Dual Console
2017 Yamaha 115 VMAX SHO (VF115LA) SS Prop
Minn Kota Ultrex i-Pilot Link 45" 80 lb.
Humminbird Helix 10 Mega SI BalZout Console
Humminbird Helix 10 Mega SI BBT Bow Mount
Trick Step

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Re: Battery Charger [Re: chickenfried76] #13900223 02/24/21 01:57 PM
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I use two Dual Pro Professionals. I have a three bank for the cranking battery and trolling batteries. I use a single for an electronics battery that I added. One of them is 15 years old, or older, and works perfectly with constant use. The single is 3 years old.

I’ve been working in the 12v electronics business for 32 years. When fuse holders melt, and don’t pop the fuse, it IS due to corrosion on the contacts. A bad connection causes voltage drop. That results in amperage having to go up to supply the needed power. This, in turn, causes excessive heat. I see a lot of melted fuse holders in my line of work.

Clean connections, and proper wiring is the fix. In your case, proper wiring is already supplied.

Reason for not trusting this? It isn’t always 100% a bad connection that you can fix. Splicing in a new fuse holder is adding two more chances for failed connections.


Eat. Sleep. Fish.
Re: Battery Charger [Re: chickenfried76] #13900229 02/24/21 02:02 PM
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Allison1 Offline
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Cut the fuse holder out and put a new one in its place. It uses a 30 amp AGX 32V automotive fuse.
Its an under $10 fix.

Re: Battery Charger [Re: chickenfried76] #13900522 02/24/21 05:56 PM
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skeeter75 Offline
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Had the same problem. Minn Kota sent me a whole new lead. Had to take the charger apart and replace it. Wasn't too bad.


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Re: Battery Charger [Re: chickenfried76] #13900528 02/24/21 06:00 PM
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GreaseMonkey Offline
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Thats not heat damage, only corrosion. Cut and splice in new one using environmental splices.


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Re: Battery Charger [Re: chickenfried76] #13901311 02/25/21 06:25 AM
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d75bender Offline
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You'd be fine cutting the wires and installing a new fuse box. Just make sure it's the same size fuse.

Re: Battery Charger [Re: d75bender] #13901565 02/25/21 02:20 PM
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David Burton Online Mad
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Originally Posted by d75bender
You'd be fine cutting the wires and installing a new fuse box. Just make sure it's the same size fuse.


Exactly, when installing the Intereferemce isolator for Humminbird electronics you have to cut the lead in front of the fuse anyway.


David Burton
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