I just purchased a 1999 FD 201 I/O with the fishing package. When looking at the battery compartment, I see 2 batteries. The one on the left (let's call it battery #1) has 2 hots and 2 grounds connected to it and both run up the port side of the hull. See pic.
The second battery is closer to the engine and has a significantly larger set of wires that head back toward the engine and console. I only get power at the console with this battery connected. See pic.
I don't see any switch between the two batteries at all. I do see that I have what looks to be a power outlet up by where the fishing seats snap in. Could it be that battery #1 is only used to power a trolling motor if installed? Does it do anything else? What is the purpose of the 2 hot/2 ground on battery 1? Is that to close the loop for recharging?
Any help is appreciated.