I haven't jumped on the lithium bandwagon yet. I have one for my garmin fish finders, but still use lead acid for my trolling and cranking batteries. People might not believe me but I have had great luck with the Walmart brand marine batteries. The last ones I had were 7 years old by the time they died. I can buy 2 if not 3 batteries for the price of one lithium. Right now they have worked great for me so not ready to spend the extra money. Guess I'm either old fashion or a cheap scape, but as long as they keep working as good as they have, see no reason to change.