Adding a exterior 2nd battery-72 GT
I have a 1972 Airstream globtrotter with a single battery in a single lower outside compartment just behind the wheel. I do a little dry camping and sometime want to add a second battery.
I have read that when you want to permanately use dual 12volt batteries. You hook up pos of Bat. #1 to pos. battery #2 then to trailer. Then Neg. #2 to Neg. #1 then to trailer. with all cables equal lenth.
My challange/problem is I cannot hook them up permanantly, I do not have the room inside the compartment. So when I want to have the second battery, my thought is placing it outside on the ground while I am camping. And hooking it up just like jumper cables. Pos #2 to pos #1 then to tralier. Neg. #2 to neg #1 then to trailer.
Just like jump starting a car.
Does anyone see a problem with this type of connection?