Best Boat Battery Reviews

Finding out the best boat battery is quite crucial for a boat owner for smooth and safe cruising. The best boat battery will allow you to move on the water for hours, and besides powering your motor, it may power your other onboard devices too, but it’s not an easy task to pick up the right one from so many models available on the market. So to help you choose the best one appropriate for you, we have come up with several excellent options for you to choose from.


5 Best Boat Battery

Optima 8016-103 D34M Deep Cycle Battery

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Sealed Lead Acid (AGM) Deep Cycle Battery

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Mighty Max Battery 12V 55Ah

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VMAX MR127 12 Volt 100Ah AGM Battery

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This 8016-103 D34M Deep Cycle Battery is one of the bestseller products on the market. It is a dedicated starting battery which you can use for both starting and deep cycling functionality.

It has a vibration which is 15 times more resistant than a wet-cell. This AGM battery is maintenance-free and spill-proof. So you can install it in any position. This 43 pounds battery measures 10 by 6⅞ and it is 7 and 13/16 inches tall and offers 750 cold-cranking amps. So it can start your battery even in adverse weather condition.
It can discharge 25 amps for 120 minutes when used at 26.7 degrees Celcius until the voltage goes down to 10.5 volts. It recharges quickly. Nevertheless, you will need to use its own charger to avoid overcharging it.


Things we liked

  • It can start a motor with no problem even at 0 degrees F
  • It can help power boats laden with lots of electrical gadgets
  • Doesn’t take long to recharge
  • It can last for as many as a thousand recharging cycles
  • Your boat doesn’t have to deal with a battery that’s too heavy
  • You can mount it at any angle because it’s spill-proof
  • It doesn’t need maintenance
  • It won’t overcharge when you use the right charger


Things we didn’t like

  • Without the right charger, you may end up overcharging the battery.
  • There are also a set of instructions you need to follow when you recharge it.



The VMAXTANKS vmax857 Tm AGM battery having a 35Ah rating is extremely durable and lasts longer than your typical battery due to its premium-performance and military-grade metal plates which makes it stronger, and capable of withstanding vibrations better. Its long-lasting outer casing is made of extra-tough ABS plastic. This AGM battery for deep cycling operations is perfect for 18 to 40-pound thrust trolling motors.

It works great for 30-pound thrust trolling motors and can run for at least 5 hours at low speeds. This 25-pound battery fits perfectly in small boats due to its small size measuring 7.7 inches by 5 inches with a height of 6.1 inches. If you want something in reserve to power your laptop at home in case of a power failure, this is for you. If you are on camping, you can run your TV and a DVD player with this battery. It doesn’t need maintenance and can be positioned at any angle.

If you’re looking for a light and compact battery with enough power for your boat, this is the right choice for you.

Things we liked

  • It has enough juice for several hours on a small boat at low speeds
  • Very light weight
  • It’s very compact
  • It’s spill-proof so you can set it at any angle
  • Very durable
  • You don’t need to do any maintenance for it


Things we didn’t like

  • For best results, you’ll need to get the VMAX BC1204 12V 3.3Amp charger
  • It’s very limited if you have one to use on a campsite
  • It cost a bit more than other brands



Interstate Lead Acid (AGM) Battery works very well for several hours of leisurely travel on the water. It is compact in design and measures 7.7 by 5.2 by 6.3 inches and weighs 23.8 pounds only.

It has enough power in its compact design to provide up to 6 hours of use in a 9-ft inflatable boat, but you can use it for many other purposes like powering electrical gadgets in your RV or trailer.

This is an AGM battery, and undoubtedly a spill-proof one. You can install this at any angle of your choice. As you can use your regular 12V battery charger, there’s no need to have a special charger for it.

Things we liked

  • It’s quite compact, which makes it suitable for kayaks and canoes with trolling motors. It also fits in well with cramped RVs.
  • It’s also not heavy at all, and again that makes it ideal for small boats where load capacity is a constant concern.
  • Despite its small size, it offers enough battery power per charge for several hours of leisurely travel on a motored kayak.
  • You don’t need a special charger for it.


Things we didn’t like

  • You shouldn’t expect to use it for the whole day on your boat, nor can you expect it to power a lot of electrical gadgets when you’re camping.
  • Its recharging time is average.



If you are planning on spending a lot of time on the water at a high speed, perhaps this 55Ah AGM battery from Mighty Max will serve you the purpose. This battery will be a pleasant surprise for you if you’re using a 30-lb thrust trolling motor.

While using this battery, you can expect up to 4 hours of service even when you’re steadily at a full speed. If you keep the speed down to medium, you will get 6 hours. It only measures 9.02 by 5.43 by 9.13 inches, which is bigger than your typical 35Ah battery, but not that big considering its power. You can set at any angle since it is spill-proof.

You can use it in a kayak as it is not that heavier. This Mighty Max weighs only 38.6 pounds, which is about 14 pounds heavier than a 35Ah battery. It doesn’t need maintenance and can withstand vibrations and shocks. It is usable in both low and high temperatures.

Things we liked

  • It offers you more time on the water, and you can go faster too without draining the battery quickly.
  • It’s still not much bigger than a less powerful battery, and you can set it up at any angle to suit your space.
  • It’s not all that heavier either, so you don’t really worry too much about the load capacity of your boat.
  • Resistant to shock and vibration.
  • It can last for a while, even in extreme temperatures.


Things we didn’t like

  • If you do happen to drain this, it can take you up to 30 hours to recharge this fully on a trickle charge.
  • If the 35AH battery is already almost exceeding your load capacity, then the extra weight may be too much for your small kayak.



The outstanding features of the VMAX MR127 battery are worth appreciating. Though it’s not designed as a starter battery, once you start going, you’ll keep on going. With its 100Ah rating, you can pretty much travel for a very long time given that you’re using a powerful motor. That means It’s not limited to your usual 30-lb thrust trolling motor, and you can use it with a 40-pound thrust motor as well.

At the lowest speed setting, it can last up to 12 hours. Putting it on medium speed will provide you with more than 7 hours of service. In fact, with this, you can get more than 2 hours at constant full speed. It also works wonderfully with a 55-lb thrust motor giving you 8½ hours at the lowest speed setting, a little over 5 hours at medium speed, and around 1 hour and 40 minutes with the speed at full throttle. It measures 12.1 inches wide and 6.7 inches deep, with a height of 8.2 inches, which is a bit bigger than your usual battery and weighs 68 pounds.

This is an AGM battery, and so it’s spill-proof, nonhazardous, and maintenance-free and can be recharged through various means, including a vehicle alternator, a solar panel, or a wind turbine except a smaller charger. The body is made of tough plastic, and designed to fit in a power kit, and the metal on the kit will help protect it from damage.

Things we liked

  • You can go fast on the water for a very long time.
  • This can last for many years.
  • It recharges in half the time it takes to recharge a standard battery.


Things we didn’t like

  • It’s bigger, heavier, and more costly than your usual boat battery.
  • You’ll need to put it in a power kit to really keep it going.



Buying Guide for Best Boat Battery


While you’re doing your online research, consider the following specific factors to buy the best one that suits your needs.


Battery Type

There are three basic types of boat battery to choose from:

1. Wet-Cell

These are basic deep cell marine batteries comparatively affordable, and durable enough to deal with repeated series of power drains and recharges. They need maintenance and you’ll need to replace them within a year or two.

2. AGM

This battery doesn’t need distilled water to be added, and it also lasts longer than wet-cell batteries. It can serve you for 3 to 4 years. It is typically twice as costly as the wet-cell batteries.

3. Lithium-ion

These expensive batteries are considered the cream of the crop because of their durability. If you can maintain them at a temperature of under 105 degrees, they can last for a decade. At slow speeds, a 35Ah battery can last about 7 hours while a 100Ah battery can go for 20 hours. You can set a series of 12V batteries for more power, but the general rule applies: the higher the Ah, the longer the battery lasts for at a single charge.



AGM batteries last twice as long as the wet-cell batteries, and the lithium-ion lasts for a decade. Consider the warranty as well. Because longer warranty indicates a longer lifespan.


Vibration Resistance and Durability

Fishing boats may travel over choppy waters which creates jarring vibrations. So choose a battery capable of withstanding these vibrations than others. There are other features like spill-proof and shock-resistance that boost durability.



Consider the size of the battery and see if it fits your boat. If you have a small boat, It’s better to limit the weight to less than 40 pounds.


Convenience and Ease of Use

Consider the convenience of installing the battery you are going to buy. Some batteries are mountable at any position while others are not. Also, check whether it is maintenance-free or needs maintenance.



Choose a battery that you can use for both starting the motor and powering onboard devices. A versatile battery can be used for RVs, motorcycles, scooters, jet skis, and perhaps even for alarms and wheelchairs.

Final Verdict

People often overlook the necessity of having a suitable battery for their boats, and some people have the wrong impression that the batteries available on the market are all the same. They can’t realize how wrong they are until they get stuck in the middle of the water. So be wise enough when choosing one for you.

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