Forum Discussion

esox07's avatar
esox07
Explorer
Aug 15, 2014

Shore power = battery charge???

I have a 19' KZ Sportsmen 19BH TT and I was wondering if the battery gets charged while the trailer is hooked up to shore power?
Thanks,
Bruce
  • It should and is easily verified with a voltmeter. I have a couple of these that I use to keep an eye on battery charging and discharging. Converters provide a charge of 13.2 volts and higher. If you see less than 13 volts when plugged into shorepower your converter is not providing a charge. Could be just a fuse or possibly no AC power to converter.
  • Basic RV AC & DC Electrical--Block Diagram





    Transfer switch/generator/surge guard-protection all OPTIONAL
  • RoyB's avatar
    RoyB
    Explorer II
    let me add this typical 30AMP electrical setup diagram from google images...



    You can see here the on-board converter/charger unit will operate all of your 12VDC items as well as keep your on-board trailer battery charged when connected to shore power or generator.

    Like indicated above to check this is to use a DC VOLTMETER connected to the battery terminals. It will read 12.6-7VDC across the battery terminals for a fully charged battery without shore power connected.

    When you connect to shore power this same reading point should now read 13.6VDC telling you the battery is being charged.

    Roy ken
  • esox07 wrote:
    I have a 19' KZ Sportsmen 19BH TT and I was wondering if the battery gets charged while the trailer is hooked up to shore power?
    Thanks,
    Bruce


    It does if everything is connected and working correctly.
  • I leave my TT on shore power all the time that I'm not on the road with it. The voltage at the battery runs 13.7 volts. Once a month I check the liquid level in the battery and add distilled water up to the level of the ring in each cell if it needs it. It never needs much water.