My boat is a 2005 220 Sundeck, 5.0L Mercruiser, very low hours (bought last year with just over 100 hours in 15 years - older couple who didn't use it much and kept it really nicely, stored in dry dock).
Getting it ready for the season (late, long story) and I think my battery is bad. Cutoff switch was properly turned off over the winter when the boat was professionally winterized late September (Pacific NW). When I tried my first start the system beeped several times and then the gauges reset. Same happens when try moving the trim - it moves, slows down as though the battery is close to dead, then the same beeping/resetting.
Battery looks easy to change and I'm reasonably handy. Want to get on the water and not waste more of the short season here. Am I being too aggressive/missing something? I can find the same Interstate battery locally, plus other equivalents marine batteries (e.g. Optima at Autozone).
