Originally Posted by Kintscher
Thanks everyone for the information. I didn't want to be stuck, so I went out today and brought both batteries home and bought a Sears 1.5 amp maintainer/charger so that they will be charged by our trip Sunday.
Can both batteries be charged together at the same time (wired as they are in the trailer) or should they be done one at a time?
Also for other's reference, I did plug in the 7 pin plug to my truck and the electric jack did work even though the batteries are very low.
It's entirely possible that your batteries weren't totally drained. Glad it worked for you. Personally I wish I had been so lucky in my previous experiences. Charge your batteries separately. Your charger is probably built only to do one at a time.
'04 Classic 30' S.O.,'03 GMC Savana 2500,'14 Honda CTX 700