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Serenity_Road's avatar
Serenity_Road
Explorer
Jul 11, 2015

Not getting power from new RV battery :(

Hello Everyone,

I am trying to do a little problem solving. We are not getting any power from our new RV battery. We have check the leads, fuses, wires (looking for loose ones), converter, and battery. Everything works with shore power; however not works just on the battery. The frig does even run on gas model without being hooked to another source other than the battery. Need all the help/advice we can get.

Thanks,
Delores
  • Old-Biscuit's avatar
    Old-Biscuit
    Explorer III
    Jul 11, 2015
    You get 12V DC when on shore power so converter is working BUT you do not get 12V DC when not on shore power

    That mens you have battery disconnect switch OFF (if you have one) OR you connected new battery cables up backwards and blew the fuses on converter.

    Converter has 1 or 2 large (30A or bigger---depending on converter) 'Reverse Polarity' fuse(s). They blow when battery is connected wrong to protect DC system/circuits.

    They are on backside (or side) of converter.

    Check cables on battery. Don't assume colors mean anything!
    Follow negative cable to trailer frame----ground
    If cable on battery negative does NOT go to trailer frame.....correct cables and replace 'Reverse Polarity' Fuses

    Also New battery will not charge if they are blown
  • Tequila's avatar
    Tequila
    Explorer
    Jul 11, 2015
    If you are not getting battery power then the fridge would not work on gas. Assuming you are not plugged in. I suspect an issue with your convertor.

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