Battery Isolator Diagram?

[teledog11]

I would like to hook up two Batteries (in line) in my slide in camper and have them charged by the truck while going down the road. I'm wondering what the best method of doing this is and what type of Isolator to use. If anybody has a wiring diagram for this or has a super easy explanation for how this is done that would be Great! I have a '96 ram Diesel if that's any help...

[ykdave]

their are many different types of isolators, but they are typically super easy to install.

most of the ones i have dealt with take the charging wire from the alt which goes to one post of the isolator, then the other 2 posts on the isolator go to each battery bank (one to the truck, one to your camper)

But, isolators arent usually very cheap (and really, for what they are and what they do its pretty expensive!). alternatively you can just run a power wire from the truck batteries to a master switch in your camper that you can turn on and off to charge the camper batteries. But, this method also relies on your memory to remember to switch it off!

Or... You can use a high amp relay in the line between your truck and camper. Hook the relay up to keyed switching power, so your truck and camper will be isolated unless the key is on (truck running). this i think is your cheapest and best option