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- Scurvy Dog
- Posts: 23
- Joined: June 8th, 2017, 9:08 pm
- Vessel Info: 1999 Carver 356
- Location: Oakwood GA
- Has Liked: 11 times
- Been Liked: 5 times
- Posts: 250
- Joined: April 7th, 2014, 6:07 pm
- Vessel Info: 1997 Carver 405
- Location: Soddy Daisy TN.
- Has Liked: 3 times
- Been Liked: 43 times
The Black Pearl
Soddy Daisy Tn.
- CYO Supporter
- Posts: 476
- Joined: March 28th, 2016, 10:52 pm
- Vessel Info: 1998 Carver 355
Suspicious Fishes !
1990 Proline 17CC
- Location: upper chesapeake bay
- Has Liked: 21 times
- Been Liked: 91 times
- Posts: 667
- Joined: July 30th, 2015, 8:15 am
- Vessel Info: 1998 355 AC/MY "Deja Vu"
- Location: Savannah, NY
- Has Liked: 2 times
- Been Liked: 81 times
I'd Rather Be Boating!
1989 Sea Ray Seville
1990's Thompson 22' Cuddy Cabin
1990's 4Winns 245 Vista Cruiser
1980's Thompson 19' Open Bow
- First Mate
- Posts: 102
- Joined: March 27th, 2016, 2:27 pm
- Vessel Info: The Midnight Sun
- Location: Montreal, Canada
- Has Liked: 6 times
- Been Liked: 17 times
2007 Carver 41 CMY
Twin Volvo D6-370's
Midnight Sun I Photos
- Posts: 223
- Joined: February 16th, 2013, 5:46 pm
- Vessel Info: '99 404 CPMY
my twin diesel pusher
- Location: Kennewick, Wa
- Has Liked: 5 times
- Been Liked: 20 times
- Posts: 1511
- Joined: August 17th, 2015, 4:07 am
- Vessel Info: 1981 Carver 3007 Aft Cabin
- Location: Southgate, MI.
- Has Liked: 28 times
- Been Liked: 94 times
I actually think that a deep cycle battery can and will last. My last boat was a Bayliner 3055 Ciera, 1999 model year. When I purchased the boat I had the dealer add 2 additional batteries. I spend quite a few weekends on the hook and I wanted to have the additional power therefore the two additional batteries.
In the spring of 2005 one or two of the batteries had reached the end of their life. I went to Sears and purchased 4 Sears Diehard Deep Cycle Group 27 Marine Batteries and installed them. I sold the boat in 2011 and I still had those same four Sears batteries. They were still going strong. Every spring after the batteries were 3 years old starting with the 2008 season I expected that one or more of the batteries would be finished.
When the 2011 season came, my last season with the boat that spring she fired right up. That is 7 seasons with the same batteries.
Now you get into the question of Cold Cranking Amps. Those batteries were rated at 650 CCA. Now most if not all of us use our boats during the warm months of the year. April to October here. Since we are not starting our boats in cold and sub-zero temperatures just how many CCA's do we really need.
All I am saying is that it is possible that you could install all deep cycle batteries and have no issues. I certainly did not.
Now with my Carver I have what are called Dual Purpose batteries or Deep Cycle and Starting. So far no issues this season with starting or spending time on the hook.
I am not recommending one or the other it is just that in my experience over 7 years I found that Deep Cycle batteries performed flawlessly. And I am in no way trying to say that your assessment is not correct. Your experiences may differ from mine therefore your assessment differs from mine, so please do not take offense at my posting.
1981 Carver 3007 Aft Cabin
2004 Past Commodore
West River Yacht & Cruising Club
Really need to know what size fits. I don't have a 356, so I can't comment on that. Regardless of what is already in there, if I could fit a larger battery, I would consider it.
- Posts: 1316
- Joined: July 10th, 2015, 9:58 pm
- Vessel Info: Carver 3807
- Location: Canada
- Has Liked: 45 times
- Been Liked: 228 times
How much capacity the house bank should have really depends on the type of boating you do but you should be sticking with Deep Cycle batteries for that purpose. If you have big block engines, and especially EFI, you should not go with anything less than 800CCA/1000MCA. Personally I am not a big fan of the dual purpose design simply because they can only be a compromise at best between a good starting battery and a good deep cycle battery. The physical design requirements for the two types of loads are different from each other so the best you can do in combining them into one battery is to give up the best of both designs. To hope of having the batteries as long as they were designed for, you should not use deep cycle batteries to start an engine or a start battery for regular steady depleting loads. It's not what their physical makeup was designed for. Not saying it can't be done, but combine that along with all the other variables involved that affect battery longevity and you could be vastly reducing their life expectancy.
Proper battery design, usage, and maintenance is key to longevity. If you buy cheapies then you can probably afford to replace them every few years but if you spend some serious cash on really good dependable units, the last thing you want to do is use them incorrectly for a load they were not specifically designed for. IMO of course
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