Loyd Dinneen
Active Member
- Jul 29, 2017
- 484
- Boat Info
- 1977 Sea ray 240 SDA cruiser w/ twin 470 mercs.
- Engines
- Twin 470 Mercruisers
I am thinking about adding a pair batteries in my 1977 240 SDA as a backup for cabin power. I have a battery switch and not sure on how to incorporate the batteries into the system. The batteries should also be able to also work as a emergency starting battery. I would put them in the center hatch which has access to the fuel tank which is enclosed a box. Any help in how to wire this up would be appreciated.