How much Accessory Apms

[pntaylor]

Just got a 32' Coachmen bumper pull that has a 12 volt battery that serves multiple roles, including break-away protection. Right now I don't think the Accessory line in the trailer wire harness is connected to anything, but I'm wondering what the practical amperage available (don't have my owners manual right now) for using the truck system to charge the trailer system. I am also considering adding a second battery to the trailer, this raises still more questions. Do I need an isolator, would two batteries be to much potential load for the truck system to keep charged? Any suggestions appreciated.

[TimMiller]

Fords have a 30 amp wire to charge the batteries. you can connect two batteries in parallel ie. + of one battery goes to + of the other, then - of one battery goes to the - of the other (just like the ones under your hood). That is way more than enough power to charge those batteries.