Odyssey Marine Battery Review 2021

The Odyssey batteries trolling marine dual-purpose battery is unique in that it can be used for both starting and deep cycle. Apart from that, it produces 2 times the overall power and 3 times the life of traditional marine batteries. The battery is very easy to mount as it is an AGM design battery, thus it can be installed in any position or angle. A battery that is great for trolling, starting, and running the several onboard electronic accessories found on the boat or in recreational vehicles. Read this Odyssey Marine Battery Review to know more about this.

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Additionally, the Odyssey marine battery is shock and vibration resistant. When compared to spiral-wound batteries of the same size, the Odyssey batteries pack has 15% more plate surface area into the case. Furthermore, they have more reserve capacity and provide more power than traditional batteries.

Related: Similar Outstanding reserve capacity – Exide XMC-31 MEGACYCLE Marine Batteries 

Technical Specifications of the Odyssey Marine Battery:

Features Odyssey 31M-PC2150ST-M TROLLING Thunder Marine Dual Purpose Battery
Voltage: 12 Volt
PHCA**: 2150
Ah 20 hr rate: 100
Reserve minutes: 205
Length: 13.00 in. (330.2 mm)
Width: 6.80 in. (172.7 mm)
Height: 9.39 in. (238.5 mm)
Weight: 77.8 lbs
(35.3 kg)
Terminal: SAE and 3/8″ stud (pos) 5/16″ stud (neg)
Warranty: 5-year warranty

Despite their price being on the high-end, this battery has a longer service life of 3 to 10 years and a longer cycle life of more than 70 percent when compared to traditional deep cycle batteries. Apart from that, it has the highest recharge efficiency of any sealed battery on the market, with a recharge of 4 to 6 hours. It can also operate in extreme temperatures, and the manufacturer provides a 4-year warranty to buyers of this product.

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Read this review to the end to know more about the features, pros, and cons of the Odyssey 31M-PC2150ST-M trolling thunder marine dual purpose battery.

Odyssey Marine Battery Review 2021

Vibration resistance design

The battery will last long as it can withstand both shock and vibration produced by trolling motors. Besides, it can tolerate extreme temperature as it has operating temperatures of 40 degrees Celsius to 80 degrees Celsius.

Longer service life

Having a battery that lasts longer will save you money, time and aggravation. The Odyssey trolling thunder marine dual-purpose battery has an excellent service life of 3 to 10 years. Therefore, you can relax knowing that this is a battery that will sustain you for over a long while before getting a new one.

Related: Similar longer life span – Vmaxtankx Vmaxslr125 deep cycle battery article

Excellent recharge time

Recharging starting batteries can be quite challenging as some of them take a lot of time to fully recharge. This is not the case with this battery as it only takes around 4 to 6 hours to fully recharge. It has the highest recharge efficiency of any sealed battery on the market.

Dual purpose battery

You will no longer have to acquire two different batteries as the Odyssey marine battery features both deep cycle and starting functions. So, you can use it to start your trolling motor or power on the electronic devices on the boat or recreational vehicles.

Longer cycle life

With a 70 percent longer cycle life than most conventional deep cycle batteries, this battery will provide you with constant power for long. It has up to 400 cycles at 80 percentage depth of discharge. So, you will have a highly stable voltage for longer periods of time.

Flexible mounting

Being an AGM battery, this battery doesn’t spill or leak and thus it can be mounted in any position or angle.

Related: Can be mounted in any position – Universal Power Group 12V 100Ah AGM SLA deep cycle VRLA battery Reviews


The manufacturer provides a 4-year limited warranty to buyers of the product. As a result, you can be certain that you’re covered.


  • It is sturdily constructed
  • Odyssey is easy to mount in any angle
  • It is shock and vibration resistance
  • Tolerates extreme temperatures
  • It recharges quickly
  • It as a longer cycle life
  • This is a dual purpose battery
  • It doesn’t spill
  • Odyssey has a longer service life of between 3 to 10 years
  • It comes with a 4-year warranty

More Affordable battery – Check this Interstate battery sealed lead acid deep cycle Article


  • It is expensive

Bottom Line
Buying this battery will reduce your stress as you will have a dual purpose battery that performs functions of two different batteries in one. You won’t have to worry about where to install your starting battery and deep cycle battery as it performs both of their functions. Even though the battery is slightly costly, it is worth every price.

The Odyssey 31M-PC2150ST-M marine dual-purpose battery is easy to install, doesn’t spill, has a great service life, it is shock and vibration resistant, and recharges within 4 to 6 hours. With these exceptional features and a 4-year warranty, this is a great battery to install in your trolling motor or recreational vehicle.


Question: What is the warranty period of this product as it is written 3 to 4 years, while the community says 5 years?
Answer: This product comes with a 4-year warranty and you shouldn’t be confused by the description of 3 to 4 years. This means that within this period, you’re free to have the battery repaired or replacement in case it has a defect in material or workmanship.

Question: Can I use this battery for both starting and deep cycle?
Answer: Yes, you can. This battery is uniquely made and that’s why it can be used for both starting your trolling motor or for deep cycle. So, you won’t have to compromise on one of those functions when you mount this battery in your boat.

Still, have a question after reading this Odyssey Marine Battery Review? Comment below.


  1. What a joke! I’ve had two of these batteries and neither one lasted more than a year. Both times they just died. They were used as a starting battery for my boat. Both were kept indoors and put on a battery tender, off the cement floor, in the winter. Both times when I took them in the salesperson was all cocky until he put it on a tester. Both were dead as a doornail.


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