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Rivolva's avatar
Rivolva
Explorer
Oct 20, 2020

Ford F150 battery drain when towing Travel Trailer

Hello, I recently purchased a 2019 F150 to pull our travel trailer (it has the trailer package). When I pull the trailer long distances (3 hours+ driving) I'm finding that my F150 struggles to sta...
Terryallan's avatar
Terryallan
Explorer II
Oct 21, 2020
I'm believing you have either a alternator, or battery problem. Ford electrical systems are disconnected from the trailer when the truck is not running, and if you didn't install the battery charger relay under the hood, it isn't connected at all. I'm guessing you did that.
you have other charging problems. You may even have a dead short.

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