How Long Do Marine Batteries Last?

The answer to the question “how long do marine batteries last” is, “it depends.” If you go cheap, you can expect a marine battery to last a couple of years – maybe up to four years if you’re lucky. But if you want true performance and power – as well as durability – you want an ODYSSEY® battery from EnerSys®. Not only will it last three times longer than a conventional lead acid battery, but it’s also twice as powerful. You’ll be able to purchase from us with complete confidence, and you’ll have true peace of mind for many years to come.

What Makes ODYSSEY® Battery So Much More Durable?

How Long Do Marine Batteries Last?ODYSSEY® batteries are different from the typical marine battery. In a manner of speaking, they combine the power of a world-class sprinter with the endurance of a marathoner. Our batteries can last for as long as ten years, yet they’re strong enough to deliver engine cranking pulses of more than 2,220 amps – for five seconds.

The average battery, known as a Starting, Lighting and Ignition (SLI) battery, can either play the role of the sprinter or the marathoner – it can’t do both. But an ODYSSEY® battery can. It can deliver a pulse of high amperage current for a short time, and it can also operate for hours at a time.

When you get on the water, the last thing you’ll want to encounter is the sudden failure of a battery. That won’t be a concern with an ODYSSEY® battery. It will not only keep your onboard electronic devices running smoothly, but it will also provide the steady power you need while trolling.

Other Reasons to Choose an ODYSSEY® Battery

Here are just a few reasons why, once you buy an ODYSSEY® battery, you’ll never want to go back to a conventional lead acid battery model.

  • Durability – The durability of an ODYSSEY® battery simply can’t be overstated. While a traditional lead acid battery might last a couple of years, the ODYSSEY® battery has a service life of as long as ten years. You’ll save a great deal of money since you won’t have to replace your battery nearly as often.
  • Ruggedness – If you take your boat on choppy water, you know how much vibration it experiences. Less durable batteries may fail under these conditions, but not ODYSSEY® They’re designed to be able to handle significant impacts.
  • Flexibility – You might not have a lot of room inside your boat to mount a battery. You can mount the ODYSSEY® battery in any position except upside-down – that’s not possible with most other models because they will spill acid. That won’t be the case with our batteries.


  • Ready to roll – At EnerSys®, we ship our ODYSSEY® batteries fully charged. Once you take it out of the box, it should be ready to install immediately. Check the voltage, though, to make sure. It will be good to go if it reads 12.65 volts or higher. If not, you can give it a quick boost charge. Your Owner’s Manual will show you how.

How long do marine batteries last? For most batteries, the answer is, “not long enough.” That’s why you need an ODYSSEY® battery from EnerSys®. Learn more by getting in touch using our online contact form.