Originally Posted by
Motor
Hi All,
I am new to the Supra family as we recently purchased a 2003 Launch SSV. We have other boats in the family but this first boat solely owned by my wife and I.
My apologies for yet another dual battery thread.
I am in the process of redoing the sound system as the previous owner had no idea what he was doing when installing the amp that is powering the sub and tower speakers, used 16 gauge speaker wire for the power and ground wires with no fuses to protect anything. Part of the redo I adding a second battery with the Blue Sea add a battery 120A kit. My plan was to run everything off the house battery and leave the other to only start the engine. Then I was thinking that if I drained the house battery the bilge pump and blower would not be operable. How do you have yours electronics split between the two batteries?
Thanks
John
I would run the stereo (and any custom lighting) off the house batteries and all accessories (anything connected to the dashboard) to the starting battery. The add-a-battery system allows you to "combine" the battery banks if you need to run something while the house bank is drained (or the starter battery is dead for some reason. It also combines the batteries for charging while the engine is on. Your bilge and blower fans shouldn't use much energy at all.
Former owner of a 1987 Supra Saltare. Current owner of a Malibu 23LSV.