Why Is My Truck Not Charging My Camper Battery?

When you take your truck and camper out on the road, you expect everything to work as it should. Unfortunately, that’s not always the case, and one of the most common problems is when your truck isn’t charging your camper battery. This can be a complicated problem to solve, but there are some steps you can take to try and identify the cause.

Check Your Charging System

The first step is to check your charging system. You’ll want to make sure all connections are secure and that there are no loose wires or broken components.

You may also want to check for any corrosion on the battery terminals or connectors as this could prevent proper charging. If everything looks good, then you’ll need to test the voltage output of your truck’s alternator using a multimeter.

Check Your Battery

The next step is to check your camper battery itself. If it is old or has been sitting for a while without being charged, then it may be beyond help.

Try charging it with an external charger to see if it will hold a charge. If not, then it may be time for a replacement.

Check The Voltage Regulator

If neither of these solutions works, then you may need to look at replacing or repairing the voltage regulator in your truck’s charging system. This component helps regulate how much voltage is sent from the alternator to the battery and if it is faulty, then it could be preventing proper charging.


Figuring out why your truck isn’t charging your camper battery can be tricky but by following these steps and checking each component in turn you should be able to identify and fix the problem quickly. Make sure all connections are secure and test both the alternator and battery before replacing or repairing any components in order to get back on the road again soon!

Photo of author

Stephen Dunn