Batteries NOT charging while towing
Did a search and saw some good info about batteries charging/not charging while towing...but here's a situation some may not know about - I didn't, and I've towed for nearly 6 yrs with my 2008 2500 D/...
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On my 2007 GMC I had to buy a fuse and a 6 milometer nut to hook up the 7 pin plug,nothing in the manual learned about it on a GMC truck forum.
