Gang...
Is there anyway to trickle charge a spare battery through a cigarette lighter (while the truck is running of course)? I could get a lighter outlet adapter and then just connect to the battery (making sure that the + and - are correct).
Im just concerned that i might either blow the fuses or turn the cable into a toaster coil.
The concept seems possible, seeing that there is a charge wire in the towing harness for campers, but is there any other hardware required? Just a hookup to the spare battery?
Thanks...
Pete