Johnson Control was building those batteries, we are not sure who is now. Though the national warranty on Sears has some value, and the price is a bit steep. They are pretty aggressive and have been trying to market batteries for a couple of years now. The AGM batteries are usually better, and we are not fans of spiral cell technology in some AGM brands. Though the standard plate styles seem to work well. First do you keep it from freezing and/or put the batteries inside. In other words take care of them when you are not fishing or do you fish all season long. If you do then you definitely are a candidate. If you dont fish all year long, then maybe not. If you plan on keeping your boat, then you might try them. If you are not going to keep it for three or four years, then opt for lesser batteries.