After buying my first sailboat last year I mistreated the battery. I never charged it off the boat (I'm on a mooring) and barely ran the outboard engine to power the alternator. This year it wouldn't start (luckily it has manual pull also). I bought a plug-in recharger and let it run a couple days but it still wouldn't start the engine. I bought a multimeter and it shows 12.6v when touched to the 2 terminals. Should I buy a new battery or is it possible I've got something hooked up wrong?
I plan to monthly do a day long plug-in and also to use a 5w solar cell for trickle-charging once I've got a working battery.