Towed vehicle battery charge line

Butch50 wrote:
Has anybody ran a battery charge line to their towed vehicle? If so what size of wire did you use and what size of fuse did you install?

I want to run a charge line to my toad just to make sure I don't drain the battery. I have a very small drain on the battery but would like to keep it topped off. My setup does not run a cable from the MH to the toad. I use a wireless plug on the back of the MH to a wireless light bar on my toad for signal, brake and tail lights. They are LED so not much power drain. The new brake unit I'm going to use is the RVIbrake2 so again there are no lines running from the MH to the toad.

I was just going to use a trailer flat 4 pin plug and wire (16 gauge)from the MH to the toad. I would take power out of the 7 pin plug on the back of the MH to the trailer wire. I would be using the trailer plugs with covers on them to keep from any exposed hot lines when unplugged. I was going to install a 20amp in line fuse.

What do you think, well it work OK?

Thanks

You would use a fuse appropriate to the wire you run (as a short answer). (gauge size vs. amps). Typically, if I was going to do it, I would run a 25 amp wire depending one what you want to run in the toad. I would also install a kill switch for the wire.