Forum Discussion

hawkpat's avatar
hawkpat
Explorer
Oct 28, 2016

Shore power not charging battery

Hooked up to 5o amps and normally battery gauge will show full charge in this state. Today came back to camper and only 1 light was lit. All D.C. lights are very dim. What can be the problem?
  • your converter should have one or two 30-40A catastrophic fuses somewhere on a front panel. That would be where I would start my troubleshooting.
  • Just had the same exact issue. Turned out my convertor blew a fuse. I actually replaced the single 12 volt battery with two 6 volts.
    If the convertor fan isn't running then it's probably the convertor
  • Hooked up to 50A shore power......
    Then Converter should be supplying the DC system and recharging battery

    Check the 120V AC Circuit Breaker that feds the converter. If tripped no AC to converter -- No DC from converter ___ Battery low cause no recharging being done

    Or if converter has power cord.......is it plugged into a 'working' outlet?

    Again circuit breaker for outlet tripped or GFCI feeder outlet tripped????

    Check converter DC output.......S/B 13.2V minimum for a functioning converter
  • lawnspecialties wrote:
    Try these:

    1. Clean the battery cables really well and reinstall. Any help?

    2. If you have a car battery charger, plug it in and hook it up to the battery of the camper. Any help?

    If its number 1, problem solved.
    If its number 2, have the battery tested but it could be your inverter has gone bad.

    My guess is time to replace inverter. If you're out camping, a battery charger left on the camper battery will work just fine. Just replace the inverter when you get home.


    Good advice but you really meant to say Converter not Inverter. Which is what most Fifth Wheels have.
  • Try these:

    1. Clean the battery cables really well and reinstall. Any help?

    2. If you have a car battery charger, plug it in and hook it up to the battery of the camper. Any help?

    If its number 1, problem solved.
    If its number 2, have the battery tested but it could be your inverter has gone bad.

    My guess is time to replace inverter. If you're out camping, a battery charger left on the camper battery will work just fine. Just replace the inverter when you get home.