Choice for battery charger.

[keithdog]

[QUOTE=mikechell;417776]Keith, that charger will work well, as long as you monitor it. I don't think they automatically reduce charging current as the battery charges up. They just keep running until the electrolyte boils.
A fully charged battery can sit on a shelf for about 2 months or so in winter temps. A month or so in indoor temps. If you put it on the charger for an hour or so each month, all Winter, the battery will be good to go for Spring ... and last for a very long time.[/QU
Actually, the model I am looking at has a microprocessor that says it will monitor the batteries charge and switch to float mode, maintain, as soon as the battery is full.

[Rebbasser]

Keith, if you can find one that both charges and maintains-set it and forget it-would be my recommendation. When I first got my boat I upgraded the on board charger. The old one was still good so I mounted it on some scrap 2x4s I had and used it for the cranking battery. I just added clips in place of the eyelets the on board charger. I guess what I am trying to say is you can get an on-board charger, just don't mount it on the boat. Take the battery out, hook up and plug it in-set it and forget it

[mikechell]

Originally Posted by keithdog

Actually, the model I am looking at has a microprocessor that says it will monitor the batteries charge and switch to float mode, maintain, as soon as the battery is full.

That's what you want. Sounds like a perfect system for boat batteries.