Charging System

[Tucker]

I’ve have a 1998 2700SCR.
The last, (and first) time I took it out, the House battery went dead. I had to use jumper cables attached to the Starter battery to make it charge back up. I would have thought that the alternator would charge both. When I bought the boat, the engine had been removed, and I installed a new engine. I’ve looked for any unattached wires and have found none. It’s definitely possible the previous owner ‘(s) changed things, as I had to rewire multiple items throughout the boat. Any help would greatly be appreciated.

[mmwjr]

How many battery switches do you have and in what position are you setting them?

[Tucker]

I have one multi switch. It has:
Batt 1
Both Batt
Batt 2
I have it set to Both Batt

[mmwjr]

Being set to both should change both battery banks, are you certain the house bank is connected to the switch?

[Tucker]

Yes, I’ve checked that.
Do you happen to have a wiring diagram?

[mmwjr]

The wiring for the 2800 in this manual should be the same.

https://www.maxumownersclub.com/foru...?do=file&id=14

[Tucker]

Great, thanks.