On-Board Battery Charger Blowing Fuses

[nbaffaro]

My XPS 5/5 battery charger is blowing fuses on both banks. As soon as I plug in the charger the inline fuses blow.

The batteries are on a 24V system. I have used this set up for quite a while. Just ran into this problem.

The batteries do charge when i put them on a single bank charger.

Any ideas?

 

[Silvertip]

Re: On-Board Battery Charger Blowing Fuses

Have you recently disconnected the charger and then reconnected it for some reason or perhaps replaced a battery or worked on their wiring? Veryify that something didn't come loose in the wiring. Is there a 12/24/Run/Charge switch panel at the bow of the boat in the vicinity of the trolling motor receptacle. Your wiring should look like this. The only thing I can think of at the moment is that the charger has lost its isolation between banks -- meaning the grounds are no longer isolated from each other internally to the charger. To test this, disconnect the jumper between batteries. If the charger now works, that's the issue.

 

[nbaffaro]

Re: On-Board Battery Charger Blowing Fuses

Thanks, I am going to give it a look.

 

[nbaffaro]

Re: On-Board Battery Charger Blowing Fuses

Thanks for the help. I went and looked at the wiring, I had it wrong. Don't know when I changed it. But it is good to go now!