Forum Discussion

Bri13's avatar
Bri13
Explorer
Feb 21, 2018

No power from deep cycle battery

This is the second battery I've tried without success, I've checked all fuses, shore power works fine. Any advice to troubleshoot getting the deep cycle battery to power our truck camper? We don't have a generator. We have a sun-lite cabover from 2003. We just bought this and are hoping to get her out on the road soon! Thanks!
  • Old-Biscuit's avatar
    Old-Biscuit
    Explorer III
    Feb 21, 2018
    Battery POS cable.....trace it back to converter

    In-line will be a FUSE.
    Verify it is not BLOWN

    IF FUSE tests good then locate the 'reverse polarity' fuse(s) (could be one or two...30A or larger) on converter. Test that those are not BLOWN


    Chances are the In-Line Fuse on battery POS cable is problem

    Course that is IF battery NEG is properly grounded.
  • KD4UPL's avatar
    KD4UPL
    Explorer
    Feb 21, 2018
    Do you have a main battery cut-off switch? Is it on or off?
  • ScottG's avatar
    ScottG
    Nomad
    Feb 21, 2018
    Any chance it got hooked up backwards? If so it will blow the reverse polarity fuses (3) possibly located on the converter away from the other fuses.
  • mike-s's avatar
    mike-s
    Explorer
    Feb 21, 2018
    You need a meter to trace voltages back from the battery. There's usually a thermal fuse between the battery and the "house." That may be bad.

    Can't offer any more without specific detail.

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