Ok, what did I do wrong. I've had an ongoing problem with my genset battery
chaging circuit and my battery charger
fighting each other. My rather simple minded Xantrex battery charger
decides what it should do to my batteries by shutting down every 10 minutes or so and looking at the battery voltage. This is all well and good except that when I'm running on the genset the genset starting circuit is putting out 10 amps and running the voltage up so I cannot even get close to a full charge as the battery charger reads the genset voltage and thinks it's done. Since I have AGM
batteries I need to get them to 100% once in a while. So in my apparently not so infinite wisdom I try a simple solution. I move the battery positive connection from the house bank to the start bank. Tha battery banks have a common negative. Well now the battery charger is very happy and doing what I expect. The problem is that the voltage on the start bank is now 15.5!!!! All power was off when I moved the connection so I don't think I blew the voltage regulator
. Does anyone have any idea why it's not regulating? The wiring
diagram shows the voltage regulator
sensing off of the B+ so I would think it would be measuring what ever battery the B+ circuit was connected to.