Astroglass Bow panel

[DBB512]

Just getting into the boats.
Bought an Astroglass 17 bass / ski
Trying to figure out the connections on the bow.
Please see attached.
Also on the dash gauges there was a green light behind a circle with 2/3 rds of the circle filled in? Not sure what it's telling me. There was also a circle on the left 2/3rds empty no back lighting on it.
David

 

[Scott Danforth]

on-board charger connection for the trolling motor batteries.

 

[DBB512]

on-board charger connection for the trolling motor batteries.

Is it a

on-board charger connection for the trolling motor batteries.

Ok, so this looks like a 30amp plug? And if I understand the lay out depending on if I'm using a 12v or 24v power for the trolling motor is how I would wire the plug?
110v 30amp
24v + upper left and - (nut) upper right
12v + lower right & - (nut) upper right
Where would the ground go? Or would it just be the power, & neutral no ground

 

[Scott Danforth]

that is an AC plug. you should have an on-board charger

you will have to look next to the batteries if the charger is still there and test it if it is still functional.