ODYSSEY Extreme Series Marine Battery Model 31M-PC2150ST
(Group 31 with brass SAE posts, 3/8 inch positive and 5/16 inch negative thread SS stud terminals)
This Odyssey 31M-PC2150 Marine Dual Purpose battery has massive starting power and amazing deep cycling capability - up to 400 cycles at 80% depth of discharge. Odyssey batteries have twice the overall power and three times the life of average conventional marine batteries.
This Odyssey 12 volt, 100Ah battery is ideal for trolling, starting, and for powering the many on-board electronic accessories common in today's boats and recreational vehicles.
I ordered two AGM Odyssey Batteries for our Airstream Travel Trailer (Online) on Monday Morning about 8:30 am. A Sales Rep called about 11:00 am to verify the ship to address, and told me I should receive them the next day. By 3:00 pm the following day I was installing them. It just doesn't get any better then that.
I had initially tried to order the batteries from Auto Zone, and authorized dealer, but they didn't have any in their warehouse. I told them I would get them from Battery Mart, and they said, if you do bring the cores in here, and we'll give you $20.00 store credit.
This was a Win Win situation. I really did try to support our local guy first. Next time I need a battery, I'll shop at Battery Mart!
I previously had the Sears version of this product in my boat. It died after 4 years (3 year full warranty). When I went to replace it, Sears had stopped carrying it and so I went direct to the manufacturer.
It starts my boat, charges, just what it should do. It is like $360 delivered versus the Sears branded version at $289. I only gave it one star for the huge markup rather than a product or battery mart issue.
Best starting battery I've ever owned. Starts my 250 Pro XS Merc effortlessly and powers all my accessories with no worries for all day tournaments.