charging

Went out on my boat this weekend for the first time -- a Hunter 27. At the dock before leaving, I hooked the battery (12V deep cycle) up to the charger. When I started charging it it read 35% and then pretty quickly got up to 45% but then stopped. I left it connected while we got the boat...

AC to DC system, aka charger, rectifier or PSU: used interchangeably for purposes of this thread. Keeping up-front investment required as low as possible is a priority. Originally branched from this thread...

Sorry if this is in the wrong sub-forum MaineSail'sMaineSail'sMusing Sub is only for him to start new threads? not really propulsion-specific but at 48V I guess here's best. . . (thanks mod) I'd rather the discussion **please** not get derailed on the design-level "big picture", maybe in...

I have an '87 Catalina 22 with 2 identical, new deep cycle batteries in parallel (a jumper between the negative terminals), a selector switch with 3 positions (bat 1, bat 2, or both) and an outboard that has no alternator. I want to connect a solar trickle charger so it recharges both batteries...

To start with, I have a '93 Yamaha 9.9 four-stroke, pull-start, tiller control, manual tilt, extra-long shaft outboard on a sailboat. The model number on the nameplate is not valid, after I compared it to the model/feature comparison for those motors...and the guy who sold it to me rebuilds...

I have recently purchased a Hunter Legend 450 Passage. The diesel engine is only charging the starter battery, not the domestic batteries. These charge through a battery charger when we have mains electric or the diesel generator. Am I missing something? Can I add a router switch to the system...