I am looking for the good, the bad, and the ugly so dont hold back!
My boat has the standard factory battery setup (2 group 24 batts separated by a 1/2/both/off perko switch) and I have come to realize the benefit to having dedicated house battery(s) when you use more amperage than the average 20'er.
My goal is this:
1. Dedicate (1) battery exclusively to starting and the other to house.
2. Utilize the aux charging lead from my 1997 Yamaha 200hp SWSII to charge the house battery at the same time the primary charging lead is charging the starting battery (or vise versa, suggestions)
3. Use the existing switch to give me the option of starting off of the house battery in an emergency situation.
In the end I would like to be able to inadvertently run my house battery dead without worrying about starting the engine or whether or not the other battery had been fully charged last time it was used.
I am looking for flaws in my logic or suggestions to improve my current situation. Given the space available I cannot add an additional battery but can upgrade the house battery down the road. An onboard charger (prosport 20amp, overkill, underkill, comments?) is also in the near future
Secondarily I am looking for direction in utilizing the aux power lead. Access, connections, wire gauge suggestions as I begin to dig through my Yam shop manuals/literature.
My boat has the standard factory battery setup (2 group 24 batts separated by a 1/2/both/off perko switch) and I have come to realize the benefit to having dedicated house battery(s) when you use more amperage than the average 20'er.
My goal is this:
1. Dedicate (1) battery exclusively to starting and the other to house.
2. Utilize the aux charging lead from my 1997 Yamaha 200hp SWSII to charge the house battery at the same time the primary charging lead is charging the starting battery (or vise versa, suggestions)
3. Use the existing switch to give me the option of starting off of the house battery in an emergency situation.
In the end I would like to be able to inadvertently run my house battery dead without worrying about starting the engine or whether or not the other battery had been fully charged last time it was used.
I am looking for flaws in my logic or suggestions to improve my current situation. Given the space available I cannot add an additional battery but can upgrade the house battery down the road. An onboard charger (prosport 20amp, overkill, underkill, comments?) is also in the near future
Secondarily I am looking for direction in utilizing the aux power lead. Access, connections, wire gauge suggestions as I begin to dig through my Yam shop manuals/literature.