Best dual purpose marine battery [2021] reviews with buying guide

Batteries are essential equipment for all types of ocean-going vessels. Without it, no ocean liner would have imagined a sea voyage. Although there are many types of batteries in the market, dual-purpose marine batteries are one of them. It is considered to be the driving force of any boat or vessel. This article will discuss best dual purpose marine battery with pros and cons.

Also, we will verify the information from users and manufacturers’. We will include the key features for you that will increase your knowledge about the dual purpose marine batteries. Hopefully, this will help you choose the best oven from the market.

So guys, let’s go to the main part.

What is Dual purpose Marine Battery?

There are many types of batteries have in the market Dual purpose one of them. The traditional deep cycle and starting both functions provide a dual-purpose marine battery. This feature naturally used in fishing boats, as a lot of accessories and electronic powers are traditionally run off the starting battery.

Dual-purpose marine batteries assist a boat engine by utilizing both types of power to starting and the deep cycle function.

The primary function of a dual-purpose battery is to supply a large amount of power so that an engine can start with no hassle. After that, it has no other liability, and it remains silent.

Hopefully, you already understand what is a dual purpose marine battery and can perform both as an initial battery and a deep cycle battery. And therefore it is the perfect choice for any watercraft.

Use of a Dual purpose Battery

Dual-purpose marine batteries are used for both purpose of start your boat engine or to run accessories. This is helpful if you know your plan because this information will allow you to choose the battery according to your needs. If you only need one battery or accessories to run, you can do better with a different setup.

Dual purpose marine battery product chart

Best dual purpose marine battery reviews With ultimate buying guide 2021

Optima Batteries 8040-218 D35 YellowTop Dual Batteries

Are you looking for a top-class dual purpose Marine battery that will offer power to your hungry watercraft? Well, Optima Batteries 8040-218 D35 YellowTop Dual Battery will fulfil all your requirements, undoubtedly.

Interestingly, it will provide deep cycles with decent cold-cranking amps. You might be wondering about the combination. But it has come precisely with the same feature.

The cold-cranking amps is 620 CCA, which is incredible for a deep cycle battery. This is good enough to give you a comfortable start to your watercraft even on an extremely cold winter evening. So, this feature keeps the battery one step ahead from other dual-purpose Marine batteries.

You will also love to hear, this battery doesn’t require maintenance. It means if you are worried about making your hands dirty, adding water into the battery or clearing up any breaches, simply say goodbye to your worries. Even, you will never experience any leak or rust throughout its lifespan. Both of the benefits are singing the song of the durability of this item.

Most importantly, this unit is offering one of the best reserve capacities compared to all other batteries. So, you can purchase this battery without any confusion. While using this battery, electrical equipment of your watercraft will never go crazy, rather than they will feel good.

Optima Batteries 8014-045 D34/78 Yellow Top Dual Purpose Battery

Those who have purchased Optima Battery 8014-045 D34/78 YellowTop Dual Purpose Battery, have praised the performance of the battery. And on Amazon, it has so many positive reviews with praiseworthy comments.

It is significantly essential to learn yellow-top Optima batteries are the best dual purpose marine battery. These batteries are capable of producing giant-like starting power. As a result, you won’t face any problem even in an extreme weather condition too. Also, they can function as deep cycle AGM batteries too.

Besides, SpiralCell technology makes this unit exceptionally vibrant-resistant. It means, when you are in the middle of a sea, you can enjoy nature without disturbance of any unusual sound.

Moreover, this way, it has 15X more capability of providing service than a traditional battery.

You can rely on this battery for cranking your vehicles and watercraft. And this unit will never let your trust go down with its performance. Recharging time of this battery is much faster than other batteries. Needless to say, this battery is leading other traditional batteries in terms of durability and performance.

No flinching will happen when you are powering other electrical equipment like inverters, audio systems, and winches, and to name a few. Internal resistance is lower in 8014-045 D34/78 YellowTop Dual Purpose Battery which allows it to provide you with a more efficient result.

It will not only assist you in starting your watercraft engine but also you can operate your boat’s electrical device with the help of the power from it. No chance of leakage or spill, and due to this without any confusion, you can easily mount it at any place as the design is sealed so adding water or any other fluid is unnecessary in this device.

You will love the dimension of the battery. It is tiny and can take its place even at the compact corner of your vehicle or watercraft. You will never regret purchasing this battery as it will satisfy you with all its performance.

Odyssey 34M-PC1500 ST Trolling Thunder Marine Dual Purpose Battery

Odyssey has introduced some of the very best dual purpose marine battery to their customer, and the 34M-PC1500 ST Trolling Thunder Marine Dual Purpose Battery will get the highest mark, undoubtedly. The price is a bit expensive, but the impressive features will not let you think about the price after you purchase it.

The reserve power of the unit is 205 minutes with 10h capacity, pretty amazing, right? Without any problem, you can pass your whole day in your fishing boat with the help of massive power from this unit. Moreover, it is promised to provide you with a longer-lasting charging facility when you are at your watercraft.

Besides, it is one of the best dual purpose marine battery because of several reasons. High-quality building material is used to build this battery which is promoting its fantastic functionality. This battery makes progress remarkably, removing the fear of something that could be attached to a battery that is continuously dyeing.

Although it is not the cheapest dual-purpose battery in the market, it would be an excellent investment for a watercraft user who wishes to do so.

Slightly larger fishing boats require not only starting power but also some additional power to keep the electrical devices on. Owner of a large fishing boat can easily trust it, keeping his/her eyes shut off. During a whole day of fishing, you will be able to get power for your GPS, radios or other electrical devices.

Its vibration resistance feature keeps the battery away from any mechanical vibration. Also, high-quality material-made construction protects the unit from any types of high impact shock.

It is an extreme temperature tolerant device that doesn’t hesitate to perform in -40°C to 80°C temperature range.

Choosing A High-Quality best dual purpose marine battery

Marine battery size

The physical size of the battery is important. You must consider whether before purchase a battery, it fits with your boat's battery storage space.

It would help if you considered the weight of the battery. If You yourself install and replace the battery yourself, you may not like that eighty-pound model.

Engine adjustment/battery chemistry

AGM is the lion’s share of dual-purpose marine batteries. AGM stands for Asherbird Glass Mat. With this type of battery, you will find a construction that features a plate inside the box.

These plates replenish the battery acid, making the battery almost resistant to vibration. Besides, these batteries are sealed with the permission of maintenance-free applications.

Cold-cranking amps

You need a certain amount of amperage to turn the engine. If you choose a battery with low CCA, it will struggle to perform. However, some batteries are rated instead of MCA or Marine Cranking Amps. CCA measures 0 degrees Fahrenheit amps, while MCA measures 32 degrees Fahrenheit instead.

Reserve capacity

The higher the reserve capacity, the longer the battery will work. The reserve power is measured by the number of batteries running without charging and below its minimum voltage. You also want to test the battery voltage and amp-hours to determine the amount of power you will supply.

Lifetime

A battery that stays on the store shelf for a year is not as much as freshly produced ones. For this reason, you must check the production date to make sure your battery will last as long as possible. Generally, you do not want to buy a battery that has a production date of more than six months.

Resistance

If you buy an AGM dual-purpose battery, you don't have to worry too much about resistance. These batteries are resistant to natural vibration- and shock. Also, the sealed unit ensures that your worries do not leak or drop.

The maintenance-free design is also corrosion-resistant. Not all batteries provide that kind of durability.

Handles

You will need to transfer the marine battery to your dual purpose at some point.When it comes time to replace your battery, you want a convenient handle. Otherwise, you may have to pull the muscle out of its bogie to replace the new battery.

You have to pay a little more to get this kind of versatility.

Charging Time

A lead-acid battery can take over 10 hours for a full charge. Lithium-ion chemistries can accept a faster rate of current, charging quicker than batteries made with lead-acid.

Price and warranty

While you may be tempted to buy a cheap dual-purpose battery, it is not wise to omit quality. Instead, evaluate the top brands to make sure you're getting the right value. The longer the battery lasts, the more money you save in the long run. Also, you want to buy from a supplier that offers a long warranty.