TSC…I had almost the same thing happen to me yesterday but I had company in the boat and decided to leave when the rains came at 5:30 pm so I wasnt stranded in the dark. And I was ony 300 or 400 yards from the ramp….. BUT i could have also been 7 or 8 miles, in the dark, and by myself, as I also fish alone 1/2 the time.
I was fishing below Dresbach dam and just put a new lms 334-s on my boat and moved my lx-125 to the bow. I noticed my lms would shut off on its own occasionaly, but chalked it up to a glitch in the unit, which I am used to with anything ressembling a computer or electronics. I also ran both locators and GPS on the 334. The livewell was cycling every three minutes with a couple of chunky sauger in there. My trolling motor runs on the 2 – 12volt batteries up front. I am assuming nothing is tied to them other than the 74# thrust trolling motor. I ran that motor almost continuously for 10 hours at 1/3 power. Still showed 3/4 power at quit time. I am not sure if it is coincidence, but this has never happened until I put that 334 on my boat. I am quite sure they dont draw hardly anything, but we only would start the motor about every hour and run up to the dam for another 1 hour float. The motor only ran for a minute or so every hour. The last float down and the motor wouldnt turn over. My lms 334 also shut down. The motor is a new merc 4 stroke and clicked a couple of times and one roll over finally started. We let her idle for a half hour or so and everything was fine. My point is my boat is only 1 year old also, I cant imagine we both have bad batteries. But I cant believe that the 334 had anything to do with it
. I have wing nuts on all three batteries, so a quick transfer of one of the front batteries would get me out of trouble. I also thought of the jumper cable thing, but its just one more thing to take up space. I hope someone with voltage or battery knowledge chimes in here to tell us if its possible to drain a new battery down with 2 locators and a livewell pump running all day. Except for the spring walleye run, I always run the motor more often and am constantly moving around, so it probably wont be a problem then. Keep us posted if you find out anything , I will do the same…………Murf