Bayliner 245 volt gauge issue

[jakwi]

Hi all. I have a 2003 bayliner 245. In prepping to go out today I started the engine and I noticed my volt gauge was twitching near normal voltage and then went to 0. I thought maybe my alternator went out, but when I measured at the battery when running I had 14.6v. The needle still moves a bit when I rev the engine, so im concerned there is some draw on that line, but in looking in the schematic it seems like the main power feed to everything. Maybe a bad connection to the volt meter?

Should I be concerned about going out today? As an aside I noticed that batt 2 didn't have enough umph to start the motor, but when all this happened I was selected to batt 1

 

[alldodge]

Gauges go bad all the time and so long as your measuring 14+V you should be good.

Now the other Bat being low can be the issue for the Bat. Look at how it gets charged. Is it charged from a ACR, Isolator or just the Bat switch?

 

[jakwi]

Ok thanks, both batteries are charged from a batt switch batt 2 is the weak one, technically that is supposed to be the starting battery.

 

[alldodge]

Might think about installing a ACR, then no need to move the switch unless needed to parallel to start motor. If weak one won't come up might also be time to replace