Dry docking - problem charging with generator


New Member
I have a small travel trailer. I have set it up with (2) 6 volt batteries wired in series. When drydocking, after I drive to a destination we only use a few lights and the refrigerator. The batteries will remain charged for 5 days. Then I will charge with my Champion 300 Watt Inverter generator. The problem is even after charging for a few hours and the interior gauge saying Fully Charged, the batteries will only last about a half day and need charging again. I don't understand what may be happening. Any help would be greatly appreciated.


New Member
Old batteries? Water in the batteries. Remove and have them load tested with a resistive load checker.


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    load tester.jpg
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C Nash

Senior Member
Just a few hrs charging will not bring batteries to true full charge. You may want to invest in solarpanels if boondocking a lot