jlombardo
Veteran Member
I have a 1998 Mainship Sedan Bridge 31 with twin Marine Power 5.7 Liter gas engines. Each engine has an Interstate deep cycle 31 battery. There is 1 main 12v circuit that can be switched between batteries. My issue is that I have added several devices (remote spotlight Wi-Fi, video camera) that are always on and when I am out fishing drifting (GPS on) or anchored with the motors off for an extended period of time, my one battery drains to the point where it will not start the starboard motor. I assume that all the always on devices that I added are on the starboard battery. This is pre-battery on/off switch. I do see similar output from the alternators on both engines in the 13+ range.
My question is do you think it would make a significant difference if I added a second Interstate 31 to the starboard side in parallel? Would the alternator and battery charger handle this?
Any input would be greatly appreciated.
John
My question is do you think it would make a significant difference if I added a second Interstate 31 to the starboard side in parallel? Would the alternator and battery charger handle this?
Any input would be greatly appreciated.
John