JeffChastain
Well-known member
So, I own a Humminbird 100 Wide portable. It comes in a case, and runs off of two 6 volt batteries. I got this awesome idea a few days ago. I figured hey, my trolling motors run on 12 volts, and so does my fishfinder. I can take the wires for the fishfinder off of the two 6 volt battery terminals, slap on some clamps, and run it on my TM battery. Yeah, not so much. I took the wires off the battery contacts, only to find out that the two red wires run independently to each battery, but the white wire is just looped between the two batteries. So, once I realized I was in over my head, I soldered the wires back the way they went, and it won't turn on now. Here is a drawing, so you'll understand what I mean. Can anyone help?!?! Now I have no fishfinder.