Need help with adding third battery

(kemo) · (kemo) **Join Date: May 2008** 05-31-2008, 9:32 PM

How do i add third battery just for starting the engine. I have two existing batteries and would like to keep them for house, kids are waching tv with dvd player and one battery goes dead in about two to three hours.

(tomfish) · (tomfish) **Join Date: Apr 2003** 05-31-2008, 9:38 PM

pos to pos, neg to neg.

(kemo) · (kemo) **Join Date: May 2008** 05-31-2008, 9:43 PM

Thanks Tom!
So do I connect that to one of the existing batteries or somewhere else?

(seaswirlmike) · (seaswirlmike) **Join Date: Nov 2003** 05-31-2008, 9:52 PM

existing batteries, but u will need a perko or some sort of isolater to keep the starter batter seperate

(kemo) · (kemo) **Join Date: May 2008** 05-31-2008, 10:26 PM

Yes I do have perko switch for two batteries. I keep battery #1 for starter and battery #2 for house, so I can add one more battery and connect to existing battery #2. In that case I will have two batteries for house use and #1 will be for the starter. Does that sound right?
Thanks