Kevin,
I have been using Optima Blue Top batteries for a long time. They are an AGM type battery. The initial cost is higher, but the service life is outstanding. I only have two batteries, but I alternate using them when we race so they both get exercised. I have one that is now exhibiting signs of failure, as it won’t maintain a full charge. It is probably 6 or 7 years old and still works. I was just able to start the battery after being out on the Bay for five hours last weekend. I prefer the AGM batteries as they won’t outgas into the cabin as they age. No user serviceable parts though… :( I put a pair of Diehard AGM batteries in my Suburban. They were priced well and I may go that route this time. Since my boat batteries aren’t a matched pair, I can change one at a time. Jake Jake Brodersen C&C 35 Mk-III “Midnight Mistress” Hampton VA From: CnC-List [mailto:[email protected]] On Behalf Of Kevin Paxton via CnC-List Sent: Monday, September 5, 2016 12:39 To: [email protected] Cc: Kevin Paxton <[email protected]> Subject: Stus-List Marine Batteries Hey everyone. Just recently subscribed to the list. Purchased a '82 C&C 34 a few years ago. Been sailing it around the Chesapeake on brief day sails so far with the aim to have a few overnighters soon once the kids get a little older. We are based in Pasadena up Cornfield Creek. I'm lucky enough to have a community dock with slips that are real cheap. :-) Anyways, both of my group 27 batteries got completely discharged since the last time I checked them. So I need to either determine if there is any way to salvage them or decide on a new set of batteries. Any suggestions on good batteries or ones to stay away from? Is there any gain to trying to revive them? They power a Yanmar 3gm30f and I haven't had any issues with starting them, but keeping them charged for any amount of time has been challenging. So I've been thinking of getting one that is a dual purpose and the other a true deep cycle for use as a house battery. What kind of combinations do others have? Thanks!! Kevin '82 C&C 34 #473? Japhy's Spirit (needs a rename, thinking 6 Pax, family of 6 Paxton is last name)
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