Forum Discussion
Y-Guy
Feb 11, 2014Moderator
There is no such thing as a dumb question, ok well maybe but you're not even close so don't worry about it.
The inverter has nothing to do with your truck charging your batteries while towing. However, not all trucks are setup to do this. Some require an additional fuse to be installed before this will work. For many without a generator this is how you charge up your batteries. What truck, model and year do you have?
You can test your truck a couple of ways. If you are on battery power without the truck connected look at your inside lights, then plug into your truck with it running and see if the lights are brighter, if they are then your truck will charge as you drive. Or with a multimeter you can touch the negative to the #1 Ground and the positive to #4 battery, if you don't know how to to use a multimeter use the first option.

The inverter has nothing to do with your truck charging your batteries while towing. However, not all trucks are setup to do this. Some require an additional fuse to be installed before this will work. For many without a generator this is how you charge up your batteries. What truck, model and year do you have?
You can test your truck a couple of ways. If you are on battery power without the truck connected look at your inside lights, then plug into your truck with it running and see if the lights are brighter, if they are then your truck will charge as you drive. Or with a multimeter you can touch the negative to the #1 Ground and the positive to #4 battery, if you don't know how to to use a multimeter use the first option.

About Fifth Wheel Group
19,007 PostsLatest Activity: Feb 24, 2025