No charge to batteries

Jun 22, 2015
4
Beneteau 31 Lake Keowee
Have a Beneteau 31 with on board battery charger and inverter. I am getting no charge to batteries from the charger when hooked to shore power or from the alternator when the motor is running. I can't find any problem with a fuse or breaker. Any ideas about something to try? Jim
 
Mar 20, 2012
3,983
Cal 34-III, MacGregor 25 Salem, Oregon
as we dont know how your system is all connected together, the only thing I can suggest is that you check all the connections.... and there is probably a fuse at the batteries to look at also...
 
Oct 29, 2006
388
Beneteau 381 Olympia, WA
Charging problems are NO fun and I've had a few, just need to start eliminating possibilities and end up at the problem. Like centerline said, we don't know your installation or familiarity with your systems so it's hard to pinpoint a quick fix from your post.

First: How are you determining you are getting no charge?

I'd check the outputs from the charging sources, I would focus on the shore power charger first since has less moving parts than the diesel. Perhaps the charging issues are connected but there is also a good chance they are not.
 
Feb 26, 2004
23,049
Catalina 34 224 Maple Bay, BC, Canada
The guys are right.

Do you have a wiring diagram for your boat? That's the best way to start. If not, make one, and you can get one on the internet, no doubt, like this:
 

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Jan 22, 2008
8,050
Beneteau 323 Annapolis MD
I believe your 31 is what took the place of my B323? Do you have the main, red-handled- battery switches and other circuit breakers "on"?
 
Jun 6, 2012
30
Beneteau 473 CT
Don't forget to press the "Charge" button on your Zantrex. We've had the boat coming up on a year and I still forget. You may need to press it twice as the first push of any button is a wake up for the unit.