How To Test Onboard Battery Charger. Make sure the battery has no corrosion and is not leaking fluid. Then check to see what voltage is being put out on the charger.
Having a marine battery charger onboard is a wise concept if you rely upon battery energy. I ended up disconnecting the batteries touching the leads to the charger and it isnt producing anything no matter what I try according to my FLUKE meter. Make the measurement on the Actual Battery POST.
Connect the terminal of the ammeter to the charger lead and connect the - lead of the ammeter to the terminal of the battery.
I think 13vdc or so but dont quote me. All three batteries never moved the needle on the charger. So when fully charged will the gauge read at 15 amps or near 0 amps thanks. The two lights do not come on when plugged in however the amp gauge moves from 0 to 5 amps.
