The House Batteries On My Travel Trailer Keep Going Dead

by Eric Young
(Fairbanks, AK)

My travel trailer has fully charged batteries but won't keep the dc power going in the trailer. It doesn't take long and the fridge is dead along with the lights. Even when the lights are out and the battery isn't powering anything it will go dead. I noticed when I plug it into my truck when traveling it isn't keeping it charged like it's supposed to. I checked the inline fuse and it looks good. What can I do?

ANSWER: Greetings Eric thanks for submitting your question on our Ask An RV Question Page.

I am going to assume that you have checked, tightened and cleaned all of the connections to your house batteries. I am also going to assume that you have checked the electrolyte levels in the batteries and if they were low you have topped them off with distilled water.

If all of the above is true then my best guess is that your house batteries are failing under load. You need to have the batteries load tested and while they are doing the load test have them check to make sure that your batteries are receiving the proper charge from your alternator and that the batteries are also getting a charge from your Converter/Charger when your Travel Trailer is plugged into shore power.

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I have a sneaky suspicion that you are going to end up having to replace your House Batteries.

I hope this helps.

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Happy RVing

RVing Al

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