Forum Discussion
Chuck_thehammer
Jun 23, 2016Explorer
NO Tow Vehicle stated.
some makes have you install a relay to the truck fuse box.
others have you install a 20 or 25 amp Fuse.
when I purchased my Used Ford last summer. the trailer battery fuse in truck fuse box was blown... replaced it and all is good.
and NO not all truck to trailer lines are trickle charges.. mine will do 20 amps to trailer battery. YES I tested it.
some makes have you install a relay to the truck fuse box.
others have you install a 20 or 25 amp Fuse.
when I purchased my Used Ford last summer. the trailer battery fuse in truck fuse box was blown... replaced it and all is good.
and NO not all truck to trailer lines are trickle charges.. mine will do 20 amps to trailer battery. YES I tested it.
About RV Newbies
4,030 PostsLatest Activity: Jul 16, 2025