开云体育

When I have a trickle charger on the truck battery... is the house battery also being charged?

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Not unless your RV has been modified / upgraded. ?You can charge both batteries at the same time if you put a clip-lead connecting the two outside posts of the isolator under the hood. Then the current flows to both. ?See the green clip-lead in this photo.

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Brain fade proofing things. Splice in a 5 amp or so fuse in the jumper. That way IF you FORGET to remove the jumper come springtime, it will blow the fuse when you start the engine the first time. This will restore the isolator to its correct operation mode, so you won't end up with a dead starter battery on your first trip.

FWIW In the last 8 years of doing this I have manage to "forget" 2x and the fuse protected me.