I just bought a Lowrance Hook 7 for the bow of my boat. I hooked it up to its own battery and I am using the transducer in my MG Xi5. It was working great until a few days ago. Now for some reason it will only stay on for a few minutes and then turns itself off. I can power it back up and same thing happens, on for a couple minutes and then off again. I rewired all the connections and checked the battery but it still does it. At one point I thought I had fixed it because it stayed on for several minutes. I had it just sitting in the bracket (I remove my electronics after every trip) and I went to tighten it down and angle it the way I like it, off it went! I don’t know what else to try or where else to look to find the source of the problem. Any help or advice is greatly appreciated. Thanks.