So, Ive got a two battery set up in the SX. Went to start it yesterday and it wouldn't. All the gauges go on, the siren sounds, etc, but all I hear from the engine sounds like the solenoid going click once. I charged both batteries last night and tried it today with the same result. Whaddya think? What's my problem? Bad starter? Bad battery? bad batteries? I'm relying on you boat Gods for help. Should I take it to checker and have them run that battery, starter, alternator check they do? I'm clueless.