Single Point Charging Issues

[redcobra]

This came up in a different thread, but I thought it best to start a new thread.

I had redesigned my system to use the Blue Sea Dual Circuit Switch and a Balmar Digital Duo. After seeing the below post, I grabbed the schematic and yes the Nanni is like that also. Doesn't seem to be any place to break out the B+ from the Alternator.

If there is only one point for starter and alternator, how do you start with one bank and charge the other using dual circuits and an ACR with the start battery receiving the echo charge?

Do I have to go back to a traditional Bat 1, Bat 2, Bat 1+2 switch?


Quote:
Originally Posted by Strygaldwir
With the 3ym30 engine, there is one location for both charging current output and starter power input. This as you are probably aware is a terminal on the starter.
Keith

Is this the case with other marine engines? My boatyard is finishing the install of my Nanni and there is only one wire from the starter area to the battery switch. There seems to be no connection from the alternator itself other than the external regulator. I have separate house and starting circuits using a Blue Sea Dual Circuit Battery switch and had planned for the starting battery to feed the starter and the alternator to feed the house with an echoe charge to the start battery.