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Looking to replace my 31AGM batteries what is the 2019 latest?

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Looking to replace my 31AGM batteries what is the 2019 latest?

Old 05-04-2019, 05:37 PM
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Default Looking to replace my 31AGM batteries what is the 2019 latest?

So, I have owned the Odyssey, then now I have 3 Sears Marine 31 AGM (really an Odyssey repro). I'm now looking at what is out there, I have heard of Cabela, X2 Power Premium from Batteries Plus, and the Westmarine. Any recommendations?
Old 05-04-2019, 05:49 PM
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I’m going to try the Duracell agm from Sams club. On sale for 159 next Saturday.
Old 05-04-2019, 06:39 PM
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I just replaced an Odyssey with a NorthStar. Same output and about the same price (expensive), but I need it for starting diesels. I'm guessing you'd do fine with the Duracell, which has gotten surprisingly good reviews.
Old 05-05-2019, 05:05 AM
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I have been thinking about trying a lifeline.
Old 05-05-2019, 05:48 AM
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Originally Posted by bigk23surf View Post
I have been thinking about trying a lifeline.
My house battery is a Lifeline 8D. Best battery money can buy, but still not invincible. Make sure your charging system is working properly and understand battery maintenance before making the investment.
Old 05-05-2019, 05:57 AM
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Duracell from Sams

or if you want absolute latest hotness go Lithium.
Old 05-05-2019, 06:27 AM
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Originally Posted by maschked View Post
I just replaced an Odyssey with a NorthStar. Same output and about the same price (expensive), but I need it for starting diesels. I'm guessing you'd do fine with the Duracell, which has gotten surprisingly good reviews.
what size are you using?
Old 05-05-2019, 06:32 AM
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Lifeline are great batteries, so are Odyssey and Northstar. Odyssey stopped making batteries for Sears several years ago. If you want CCA, go with the Odyssey or Northstar. Whatever you do, don’t waste your money on Optima.

i just replaced 3 five year old Odyssey with 3 Northstar. I need the CCA because these batteries drive my thrusters and windlass.
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Old 05-05-2019, 06:34 AM
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Originally Posted by coores14 View Post
what size are you using?
31's for starting. 8D for house.
https://www.northstarbattery.com/product/nsb-agm31m

The house battery is an incredible pain to replace, so I got the Lifeline hoping it will last 10 years.
Old 05-05-2019, 07:32 AM
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Originally Posted by maschked View Post
31's for starting. 8D for house.
https://www.northstarbattery.com/product/nsb-agm31m

The house battery is an incredible pain to replace, so I got the Lifeline hoping it will last 10 years.
My starting batts are 4D and I've been wanting to go smaller if at all possible. The Northstar 31's are what I was considering so it's good to hear that they handle your C7's. Shouldn't be an issue with my 3208's, yeah?
Old 05-05-2019, 07:57 AM
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I’m certainly not an expert and have limited experience as I have only used three Interstate 31-AGMs, but have found them to be pretty strong. The 3-year warranty is great and the support in my local Interstate store has been excellent.

I am am running a 32’ Intrepid with lots of electronics. These are the items that are almost always on ... two 7612s, 424 xHD2 (open array radar), Furuno RD30, GXM-52 (SiriusXM), FLIR (powers up with switches), GHP Reactor with Smartpump Autopilot, GHC-20, AIS-600, Fusion 750 w/JL 800 amp, VHF. Part time usage is Bow Thruster, Windlass, Underwater Lumitecs and a bunch of other LEDs but use them rarely.
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Old 05-05-2019, 01:44 PM
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I am not an expert either, but I have had good experience with Deka Marine Batteries AGM. I run a 32’ Intrepid with a single diesel and three AGM Deka batteries. The boat has the full array of electronics with two stations. No problems. Sometimes they have what they call seconds. It is what I purchased last, and currently have three years on them with no issues. The seconds are usually much less expensive. My local Ace and West carries the firsts in their stores. I’m in Ft. Myers, and I go right to Taylor Crowe Deka Marine Battery facility, which is where I get the seconds. They may have one near you. Great for all my electrical supplies too.
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Old 05-05-2019, 01:57 PM
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Originally Posted by Jeff G. View Post
I am not an expert either, but I have had good experience with Deka Marine Batteries AGM. I run a 32’ Intrepid with a single diesel and three AGM Deka batteries. The boat has the full array of electronics with two stations. No problems. Sometimes they have what they call seconds. It is what I purchased last, and currently have three years on them with no issues. The seconds are usually much less expensive. My local Ace and West carries the firsts in their stores. I’m in Ft. Myers, and I go right to Taylor Crowe Deka Marine Battery facility, which is where I get the seconds. They may have one near you. Great for all my electrical supplies too.
Do you know what constitutes a battery being a "second". In most cases it is a cosmetic issue but I have no idea with batteries.
Old 05-05-2019, 01:58 PM
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Originally Posted by coores14 View Post
My starting batts are 4D and I've been wanting to go smaller if at all possible. The Northstar 31's are what I was considering so it's good to hear that they handle your C7's. Shouldn't be an issue with my 3208's, yeah?
I would think so, but I'd want to verify for your specific engine and starter first. If you do go with a 31, I think it will have to be one of the high-end brands.
Old 05-05-2019, 02:20 PM
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Originally Posted by maschked View Post
31's for starting. 8D for house.
https://www.northstarbattery.com/product/nsb-agm31m

The house battery is an incredible pain to replace, so I got the Lifeline hoping it will last 10 years.
Northstar has a product which is essentially 3 group 27 with a custom made cover to combine them into an 8D. Should be much easier to remove and replace. It's expensive, but i'm pretty sure my back would think it was a goos idea.


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Old 05-05-2019, 05:40 PM
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Northstar.
Old 05-05-2019, 05:48 PM
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Originally Posted by Jeff G. View Post
I am not an expert either, but I have had good experience with Deka Marine Batteries AGM. I run a 32’ Intrepid with a single diesel and three AGM Deka batteries. The boat has the full array of electronics with two stations. No problems. Sometimes they have what they call seconds. It is what I purchased last, and currently have three years on them with no issues. The seconds are usually much less expensive. My local Ace and West carries the firsts in their stores. I’m in Ft. Myers, and I go right to Taylor Crowe Deka Marine Battery facility, which is where I get the seconds. They may have one near you. Great for all my electrical supplies too.
The Duracell AGMs from Sam's club are made by Deka...Great batteries
Old 05-05-2019, 07:07 PM
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Everyone loves to bash optima. I inherited 4 of them with my boat. I drew them down by accident to zero (twice!!!) in sub 20 degree weather, didn’t find out for days, nursed them back to life, and they are good as new. Been using them for months. I think the “optimas suck” mantra is akin to some of the love or hatred of boat brands on here....
Old 05-05-2019, 07:21 PM
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Originally Posted by maschked View Post
31's for starting. 8D for house.
https://www.northstarbattery.com/product/nsb-agm31m

The house battery is an incredible pain to replace, so I got the Lifeline hoping it will last 10 years.
I have 2 4D AGM Centennial starting batteries, for my house I have 2 6 volts AGM inline. Instead of a 170lb 8d I have the 2 6volts that are about 64 lbs each, about a group 27 size, and they provide almost double the amount of amp hours available compared to an 8D. With both inline I only take up 1 bank on my charger. 2 6's for the house instead of a huge less efficient 8D just make more sense.
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Old 05-05-2019, 08:31 PM
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Still nothing better than an Odyssey

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