Montana Owners Club - Keystone Montana 5th Wheel Forum - View Single Post

bncinwv · 07-31-2014, 02:08 PM

If you are installing a dual battery system to a dual battery marine isolator switch, the way I wired mine is as follows: the individual positive (red) leads go to the switch positive posts. The negative (black) from the switch then goes to one battery negative post and the two positives of the batteries are wired together, then the negative from the last battery goes to the frame. This will allow you to use one or the other or both (if they are similar batteries). It is a good idea to use the same type batteries as I do not believe the onboard charger will support different types. Check the manual to verify this.
Bingo

07-31-2014, 02:08 PM	#5
bncinwv Montana Master Join Date: Feb 2007 Location: Winfield Posts: 7,327 M.O.C. #6846	If you are installing a dual battery system to a dual battery marine isolator switch, the way I wired mine is as follows: the individual positive (red) leads go to the switch positive posts. The negative (black) from the switch then goes to one battery negative post and the two positives of the batteries are wired together, then the negative from the last battery goes to the frame. This will allow you to use one or the other or both (if they are similar batteries). It is a good idea to use the same type batteries as I do not believe the onboard charger will support different types. Check the manual to verify this. Bingo __________________ Bingo and Cathy - Our adventures begin in the hills of WV. We are blessed by our 2014 3850FL Big Sky (previous 2011 3750FL and 2007 3400RL) that we pull with a 2007 Chevy Silverado Classic DRW CC dually.