Name:   rdfarr - Subject:   Merc 225 mech in Dadeville? Date:   6/19/2015 10:44:02 AM

Hey, Catboat!  I've finally got my 22' Whitley in the water a couple of weeks ago. Boat runs like a scalded dog instead of a stumbling pig.  Thanks for the great tune-up. 

Got a problem and a question regarding batteries: (Don't have experience with big boats; my previous boat was a 17' center console with a 115HP OB.) 

My boat has two batteries controlled by a rotary switch: OFF-1-BOTH-2.  Not quite sure why two batteries are required. 

After a couple of outings, had a hard time cranking the engine.  Checking the two batteries, found them way low, requiring most of a quart of distilled water to top them off.  I think the Bass Pro Shop bank charger malfunctioned and boiled them almost dry, and there are user comments about that effect on BassPro site.  Now, my batteries won't even turn on the depthfinder, much less the starter. Nothing. 

Rather than replace two batteries, I think I should need only one 800 CCA marine battery. I'm a day, lake cruiser, and don't use a lot of electrical devices.  I'd like to bypass using the installed bank charger, which I don't trust, and just use my own portable charger which I trust.  One battery simplifies charging. 

Anything I'm overlooking? Any reason that my one battery plan is inadvisable?

Thanks again!