Yep,Invest in a good AGM group31 battery.Mercury has their own battery you can get from your dealer .But many others are good too. The current value leader seems to be the Sears AGM at $189, with Odyssey, Deka, Cabellas and Lifeline also making good stuff. Stay away from the Optima blue top their having problems with them.
The benefits are an AGM battery charges faster, most likely after a good run fully charged. Lead charges slower most likely some discharge even after a run
AGM will also hold a charge longer with only 1% discharge over a month where lead can be 1% to 2% a week.