onboard charger not working?

Kentuck · Post by **Kentuck** » Thu May 28, 2015 6:10 pm

When I started doing more fishing this spring, I noticed my batteries weren't holding up long. Would wind up on high at the end of the day and that seemed slow.
I put new batteries in and all seemed well. But the last two trips the batteries have given out after several hours of not a ton of running. I hooked up my regular charger and though I haven't been out the t-motor seems fine now.
Is my charger bad and if so, what recommendation do you all have for a replacement? Its a 24 volt system.

fishwithron2 · Post by **fishwithron2** » Thu May 28, 2015 9:35 pm

Check NOCO marine battery charger 3/10 for around $260 or 4/10 $350

mm · Post by mm » Fri May 29, 2015 9:47 pm

I`ve had dualpro chargers for a lot of years with no problems.
A good product backed by a great company with great customer support.

111bass · Post by **111bass** » Mon Jun 01, 2015 11:20 am

I have same problem take volt meter set to 12 volts start engine then touch red lead to plus side black to neg should read 13.7 or above on starting battery

reddog · Post by **reddog** » Mon Jun 01, 2015 3:40 pm

This might sound stupid but I have to admit I have fallen pray to making this mistake, check the fuses in the charging leads. I had the same thing happen and it turned out 1 of the fuses was out so I was really only charging 1 battery all night so it would work fine at start off then I'd end up on high by the end of the day with little power. Hopefully that all it is cause its way cheaper than buying a charger. maybe you've already checked all this but just in case.

Oldschool · Post by **Oldschool** » Mon Jun 01, 2015 7:06 pm

You can use a 12v load tester. Disconnect or the changing leads, the charger should be 13+v @ 10+ amps for each bank.
Tom

Kentuck · Post by **Kentuck** » Tue Jun 02, 2015 4:26 pm

No fuses to check. I will get VM and check ck that. Its a professional mariner pro tournament 15-3. Was on the boat when I bought it 10 years ago.

mark poulson · Post by **mark poulson** » Wed Jun 03, 2015 6:38 am

Try checking that all your terminals are clean, and your connections are tight. Sometimes a loose connection is the problem.

Oldschool · Post by **Oldschool** » Wed Jun 03, 2015 6:11 pm

Most onboard chargers have inline fuse on the positive wire lead for each bank.
Take a look at Norco Genius 3 onboard 12V, 10 amp per bank charger.
If you use a 15 amp per bank charger it may damage some types of batteries over time, AGM's for example.
Clean, tight, corrosion free connections are SOP!
Good luck.
Tom