Battery recommendations

S

SmilingMonkey

Member
Oct 12, 2015
257
Narragansett Bay
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I'm pretty sure the batteries in my (new to me) 2010 330 are factory original. One of them showed low cranking amps during the survey, so the previous owner agreed to replace it. I'm thinking it's time to replace all of the batteries and I'm looking for recommendations.

Specifically:
1) Should I go wet cell or AGM?
2) Cranking batteries or multi-purpose?
3) Any particular brand/model people have had good or bad experiences with?

Thanks!
 
Do a search here and you will get a lot of info. Opinions are as varied as the weather. For the price/longevity, I have had excellent luck with wet cell Deka and Interstate batteries. Sam's carries Duracell marine batteries which are made by Deka at great prices.

Watch water levels and use a smart charger and all is good.

Bennett
 
I feel your pain. I just installed 6 group 31 Interstate AGMs. At a cost of almost $300 per, I'm still feeling the pain. Not to mention, I now have to replace two 4Ds. Ouch. I'm banking on the fact that I won't have to replace them again anytime soon. My mechanic has the Interstate AGMs in his boat. They are supposed to be bullet proof. Also, make sure you have a good "smart" charger. Good luck.
 
First, welcome aboard! Trojan is a great brand, the type depends on what you want. If you take care of your own maintenance, wet cells cost less. If you write checks, I would say AGM's are the way to go. If you plan on staying with this boat for a number of years, get the best you can and take care of them. If the batteries are hard to get to, make them AGM or put a watering system in so you can water them easily.
 
I have wet cells from Walmart - Group 29s and they just finished their 6th season. I am going to replace them in the spring, they still work. The key with wet cells is not draining them, keep them charged and top the water off with distilled water a couple times a season.
 
Wet cells, AGMS, or Gel Cells? That is the question. Each has their advantages. A little reading for you. Everything You Need to Know About Batteries. http://newboatbuilders.com/docs/BatteriesEverything.pdf I have always used wet cells and as was said, if properly monitored, and maintained they will last 4-6 years depended on usage.
 
Thanks everyone. If I decide to stick w/ wet cells, should I think about multi purpose batteries, or just stick w/ starting batteries?

My typical usage will involve 4-6 hours on the hook with radio, etc. running.
 
You should check on the battery configuration of your boat and the type of batteries you are removing. I had an earlier version of your boat (04 300DA) and it had two banks of two batteries on each bank, for a total of 4 batteries. They did everything for the boat - started the engines and generator and ran all the house systems. As a result they had to be dual purpose batteries.
 
I did 3 blue optima's with a new Xantrex smart charger. That was 3 1/2 years ago. So far so good. Recently I put a remote panel inside the cabin. Now I can watch what's going on without pulling the rug up and that heavy floor.
 
Smiling Monkey,

if you can afford it go with the group 31 AGM deep cycle batteries (pretty sure this is the right size for a 330) I have Intimidator made by East Penn Manufacturing in my 2008 310.

The good news with AGM is that they last a little longer than wet acid and you never need to water them. They also won't spill or boil over. But they do cost about $100 more each than the same size wet acid. But since they last longer they really cost the same!

good luck!
 
Smiling Monkey,

i would only only use deep cycles. They have enough cranking amps to start your boat and a better reserve than dual purpose or starting batteries.

good luck!
 
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