Originally Posted by earthbm
At the end of my wits here, the Chinese puzzle is killing me. Is there a standard wiring diagram for the starter battery, the house bank, charging relay, starter battery on/off switch?
Yes, there is. This one works great.
Without a good wiring diagram of your present setup, it's hard to tell what's going on. But you should not have to switch something to start the engine
, and having a relay disconnect while the engine is running is a sure sign SOMETHING is wrong.
In your place, I'd be tempted to start over and do it right. If you wire things this way, you won't need to switch anything. The EchoCharge will take care of the start battery, providing whatever amperage is needed whenever it senses a charge on the house batteries.....from whatever source.
Sometimes, starting over with the entire DC supply wiring is easier than trying to make changes here and there with the old system, and never really getting it right.