Posts: 3480
Location: Elk River, Minnesota | Hiya,
I would think to be safe, I would run a dedicated wire set from your depth finder to one of the two batteries. I would assume you would run a fuse in the positive line.
With the positive spliced in, I'm not sure if you can just run a dedicated negative lead to one battery...You might, though, as the negative would only allow 12 volts to run.
I believe option 1 to be a bit better as it totally isolates the TM current from the depth finder current.
Steve |
