i was fishing the other night at hoover. when all the sudden my trolling motor and fishfinder shut off, i did not hit anything i was in open water. i have an inline fuse attached to the positive terminal to protect my fishfinder if i ever do hit something with the trolling motor and cause some kind of surge. btw, this is just a simple marine battery hooked up very simply to a trolling motor with a fishfinder wired in with an inline fuse, nothing complicated. anyways the other night the positive terminal on the battery really about knocked me out the boat is was sooooooo hot. i was just gonna tighten the screws on it, it cooled very fast and everything started working fine. what could be some possiblities for this to happen, is my battery goin dead? it was fully charged when i left but it did not have much juice in it when i came home though, it usually stays pretty charged up all day, i can run my motor and ff easily 8 hours of normal fishin, i was only out the other night for 4.5 hours.