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      DieHard  Platinum Marine Battery Group Size 31M (Price with Exchange)

        Item#  02850131000 | Model#  50131
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       Rating 4.0 | 42 Reviews | Write a review
      $309.99
      $309.99
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      Specifications & Dimensions

      Dimensions:
      Height (in.): 9.5
      Item Weight (lbs.): 75
      Length (in.): 13
      Width (in.): 6.8
      Battery Type:
      Group Size: 31M
      Power Configuration:
      Number of Cells: 6
      Power Ratings:
      Amp Hours at 20 Hour Rate: 100
      Capacity Amp Hours at 10 Hour Rating: 92
      Cold Cranking Amps (CCA at 0 deg.F): 1150
      Reserve Capacity (RC): 205 min.
      Design & Construction:
      Battery Design: Absorbed Glass Mat
      Container Material: Polycarbonate/polyester
      Maintenance: Maintenance Free
      Overall Type: Deep-cycle
      Temperate Zone: North or South
      Positive Terminal Side: Right
      Terminal Post Location: Top
      Warranties & Coverage:
      Free Replacement Warranty Term: 36 months

      Overview

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      Product Description

      Sail Into the Horizon With the DieHard Marine Battery Size 31m

      The Group Size 31m battery is the ideal companion for your boat when you want to break free and enjoy quiet moments on the sea. It has a high reserve capacity of 205 minutes which ensures you will be safely ashore even in an emergency. This maintenance-free battery features an Evolution Technology that adds to its functionality and durability. Suitable for recreational and marine vehicles, the battery has a long off-season storage time, so you can just crank up and speed away.

      The DieHard Marine Battery Size 31m has tin-coated brass terminals and 99.99 percent pure virgin lead plates, that make it durable, powerful and reliable. Safety first design features a non-spillable and sealed design with an Absorbed Glass Mat construction. These glass mats are instrumental in keeping the acid in place to make the battery vibration-resistant and easy to mount. Sail away on a sunny day or as the rain lashes at the shores with this weather-resistant battery.

      • Maintenance-free this Group Size 31m battery is ideal for use on your recreational marine vehicle
      • Features 1150 CCA that delivers quick ignition
      • Container is made from high-quality polycarbonate/polyester
      • Has a long off-season storage power and a reserve power of 205 minutes
      • An AGM construction offers the battery longevity and mounting flexibility
      • The battery is vibration-resistant and sports a military-grade construction
      • Item Weight: 75 lbs.
      • Dimensions: 13"(L) x 6.8"(W) x 9.5"(H)
      • Three-year free replacement limited manufacturer's warranty

      This product is:
      • Available for Gift Wrap

      Added on October 21, 2010

       

      Overall, others give this:

      42 Reviews Write a review
      30 Reviewers (71.0%) would recommend this to a friend.
      Overall Rating Breakdown:
      5stars
      4stars
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      1stars

      Reviewers may have received a benefit, like a sweepstakes entry or rewards program points, in exchange for writing a review.
      Those benefits were not conditioned on the positive or negative content of the review.

      Most Helpful Reviews

      Praise18 found this helpful
      Likensrus
      Dec 29 , 2008
      excellent
      What can I say. I got tired of battery's lasting two years. I bought this battery soley to run my trolling motor for my canoe. I use a Minn Kota 55lb Endura motor. On my first canoe trip this year I was able to go 2 and a half days on a charge. That equaled 30+ miles of river. I did paddle some but I also went back up stream through good fishing holes. It holds a charge like no other battery I have ever owned and that includes the days of bass boats and bass tourneys that I have gladly left behind. Thanks for a great product - Butch from Ohio
      Criticism26 found this helpful
      indiffer
      Jun 1 , 2014
      terminals not the same size
      the negative and positive screw-on terminals are not the same size, so one lug and wing nut (the positive terminal) from previous setup doesn't attach to the terminal without modifications, and when I asked for nuts to fit the terminals I was given two of the same size.
       
      Nov 11 , 2014
      via sears.com
      Overall
      3 years max

      I have purchased 4 of the 31 M batteries, and I have yet to exceed 3 years of service life, for each battery. I have two batteries on my 32 ft. boat, 1 for each engine starting, and minor incidental electronics and lights. I have automatic battery chargers that will not overcharge the battery. I use the boat very little. So, to pay $280/ea. and not get a longer life seems awful. In 2014, it would seem to me, a $280 battery would last 8-10 years, not 3 years. Come on Sears, this is not right and should be corrected. This is a ripoff. Jerry Dunford


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      Danmarco

      Port Saint Lucie, FL

      Nov 7 , 2014
      via sears.com
      Overall
      31M battery not as good as I would have liked

      Had this 1-1/2 years. Expensive top of the line battery tender always connected to it Lost a cell. Needless when I needed it, it was no good. So now take the 75lb battery back to the store and hope they give me a 3 year with it.


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      Jun 1 , 2014
      via sears.com
      Overall
      terminals not the same size

      the negative and positive screw-on terminals are not the same size, so one lug and wing nut (the positive terminal) from previous setup doesn't attach to the terminal without modifications, and when I asked for nuts to fit the terminals I was given two of the same size.


      Helpful
      (26)
      Not Helpful
      (7)
      Flag this Review

      Mogman

      Annville, PA

      Apr 18 , 2014
      via sears.com
      Overall
      Awesome battery - wait for sale

      Not much to say, it started my truck engine in the coldest, longest winter I ever knew. The only drawback is it's really heavy. Getting it into the engine bay requires lots of effort and care. It needs some sort of handle or strap to do this alone. Plus I only had a few tenths of an inch to spare in my Tundra battery box.

      I would recommend this product to a friend.

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      Scottandee

      Holyoke, MA

      Apr 4 , 2014
      via sears.com
      Overall
      7 years and still going

      Own fishing boat. Bought 2 of these in April 2007. One for starting and one for trolling motor. Use at least 10 to 15 times a season. Never ever had an issue. I keep an on board charger on them when parked during season and pull them in the fall and keep on a charger all winter. I just bought a new starter battery now as I feel safety is important. 6 miles out and I really want to get back to dock with out worry. Still using the trolling battery. Worth every penny.

      I would recommend this product to a friend.

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      reibe

      Hialeah, FL

      Mar 12 , 2014
      via sears.com
      Overall
      Best ever

      Listen people and listen carefully,Sears sometimes sells things that are of poor quality,but not this time ,I have had this battery on my winch equipted 4x4 truck for almost a year now it has gone from Dallas,Texas to Emery,South Dakota and also sunny Florida without any glitches,oh yeah its a marine battery but it works great on high demand vehicles you know.

      I would recommend this product to a friend.

      Helpful
      (4)
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      Battyep

      Folsom, CA

      Feb 28 , 2014
      via sears.com
      Overall
      Platinum marine 31 m battery

      I have three in my boat. Large amp stereo and takes a lot to start this boat I have. I don't see how this battery could **** out, unless you are charging it wrong with the wrong type charger. I go out every Saturday for over two years and never had problems.huge heavy battery but never have to worry. Does take a while to charge but no issues. Starts every time and I run stereo loud all day long while not running boat.


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      fishing4crappie

      Cumming, GA

      Feb 12 , 2014
      via sears.com
      Overall
      great battery

      I have had two of these battery's for five years i do alot of trolling with a 24volt trolling motor i have fished for 8-10 hours of constant use and they have never let me down

      I would recommend this product to a friend.

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      Bushrat

      Albuquerque, NM

      Jan 23 , 2014
      via sears.com
      Overall
      Good while it lasted

      But it didn't last. The battery is door nail dead after four years. I was running it in my old Land Cruiser, no winch, just the engine and normal stuff. Considering how much I spent, and the size of this battery, I would think it would last longer. I've had Optima batteries do better.


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      (5)
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      FTB530

      Yuba City, CA

      Jan 20 , 2014
      via sears.com
      Overall
      Going to purchase

      I want to know why any one thinks if they get a three year replacement warranty and they have to use it after a year ,why do you expect a new three year warranty when they replace it with a new battery ? i have a Die Hard Marine Battery i have used since 2008 never a problem and it has set and not been used over every winter,i had to charge it once since i had it,I purchased one of the Optima batteries at Sears and it didn't last two weeks, took it back and got the Die Hard and not a problem yet,so no i will buy this one for my other boat i am rebuilding.

      I would recommend this product to a friend.

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      (14)
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