As a marine enthusiast, you surely own a boat you dearly care for. Therefore, you most probably already know the importance that a quality battery has for your experience when using the boat. It provides power storage and backup for the watercraft and the onboard appliances. To make your experience as pleasant as possible when using the boat for recreation or other purposes, we have done thorough research on marine vehicle batteries. This way, you will not only get the chance to inform yourself on everything related to these batteries, but you will have an easier time finding the right model for your needs as well.
|1. Odyssey 31-PC2150S||2. VMAXTANKS VMAXSLR125||3. Exide XMC-31 MegaCycle AGM 200||4. Optima Batteries 8016-103 D34M||5. VMAXTANKS VMAX857|
|BEST MODEL||OUR CHOICE|
|Dimensions (L x W x H)||13″ x 6.8″ x 9.41″||12.9″ x 6.8″ x 8.7″||15.7″ x 13.9″ x 9.8″||10.06″ x 6.88″ x 7.94″||7.7″ x 5″ x 6.1″|
|Plates Material||Pure Virgin Lead||Military Grade Alloys||N/A||Pure Lead-Tin Alloy||Military Grade Alloys|
|Container Material||ABS Plastic||ABS Plastic||ABS Plastic||Polypropylene||ABS Plastic|
|Type||Starting/Crank||Deep Cycle||Deep Cycle||Dual Purpose||Deep Cycle|
|20Hr Nominal Capacity||100Ah||125Ah||100Ah||55Ah||35Ah|
|Cold Cranking Amps (CCA)||1150||1130||925||750||300|
|Pulse Hot Cranking Amps (PHCA)||2150||1875||1535||1245||500|
|Marine Cranking Amps (MCA)||1370||1410||1180||870||390|
|Service Life||3-10 Years||8-10 Years||5-8 Years||10 Years||8-10 Years|
|Reserve Capacity||205 Minutes||260 Minutes||200 Minutes||120 Minutes||75 Minutes|
|Operating Temperature Range||-40°F to 113°F||-4°F to 140°F||N/A||-40°F to 125°F||Weatherproof|
|Recharge Time||4-6 Hours||12-24 Hours||6.5 Hours||6-12 Hours||N/A|
|Battery Life Cycles||Recovery of 400 Cycles at 80% Depth of Discahrge||Recovery of 600 Cycles at 75% Depth of Discharge||N/A||N/A||60% Depth of Discharge on 18-40lb Trolling Motors|
|Charging Options||Any Charger or Alternator||Smart / Microprocessor Controlled Charger; Alternator; Solar Panel; Charge Controller||Solar Panel; Alternator; Any Charger||Constant Voltage Charger||Smart / Microprocessor Controlled Charger; Alternator; Solar Panel; Charge Controller|
|Typical Applications||Cranking Battery for Starting Engines of Boats, Cars, Golf Carts, Vehicles; Deep Cycle Battery to Run Marine Unit and Onboard Vehicle Accessories||N/A||Deep Cycle Battery to Run Engines of Boats, Cars, Golf Carts, Vehicles; Marine Unit and Onboard Vehicle Accessories||Starting Marine and High Power Vehicle Engines like Boats and RVs; Running and Powering Onboard Electronic Appliances||Deep Cycle Battery to Run Engines of Boats, RVs, Cars, Vehicles, Golf Carts|
|Absorbed Glass Mate Technology|
|Terminals||SS 3/8″ Threaded Stud||8mm Hex Screw in Terminals||1/4″ Studs for Copper Terminals and SAE||5/16″ Stainless Steel Stud Posts and Dual SAE||Dual Terminals with Hex Head Bolts|
|Shock and Vibration Resistance|
|Warranty||4 Years||1 Year||2 Years||2 Years||1 Year|
Our top pick features pure virgin lead plates and an ABS plastic container of a superior quality. It weighs 77.8 pounds. It is a starting/cranking battery which belongs to the 31 group size. It has a 20-hour nominal capacity of 100Ah, a CCA of 1150 amps, a PHCA of 2150 amps, and an MCA of 1370 amps.
It has a recharge time of 4-6 hours, the charging options for it being any charger or alternator. It uses the absorbed glass mate technology, being highly resistant to shocks and vibrations. The reserve capacity of this battery is 205 minutes.
Its service life ranges from 3-10 years. The terminals it comes with are SS 3/8″ threaded studs. It features a non-spilling design and a useful carry handle which makes positioning it easy. Also, it comes with a 4-year warranty.
|Ideal 100Ah 20-hour nominal capacity||There are no downsides to this product|
|Service life of up to 10 years|
|Recharge time of approximately 4-6 hours|
|Can be used with any type of alternator or charger|
|Generous 4-year warranty|
With a reserve capacity tough to surpass and recharging faster than you would ever expect, it is easy to see what makes this battery our top recommendation to boat aficionados. Its versatility is quite expanded in terms of charging manner, and, if properly taken care of and used, it lasts for up to 10 years. Overall, there are no flaws we could find, so for the sake of your boat, we advise you to use it.
The VMAXSLR125 comes with military grade alloy plates, and the container that it features is made of ABS plastic. This deep cycle model weighs 75 pounds. It boasts a 20-hour nominal capacity of 125Ah, meaning that it will offer a reliable performance to those who choose it. It belongs to the 31 group size and it has an impressive service life of 8-10 years.
It provides 1130 cold cranking amps, 1875 pulse hot cranking amps, and 1410 marine cranking amps. Another aspect that has impressed us is its 260-minute reserve capacity. To recharge it, you have to wait between 12-24 hours and you can use a microprocessor controlled charger, an alternator, or a charge controller.
The fact that it features the absorbed glass matte technology shows it is resistant to shocks and vibrations. It features 8mm hex screws in its terminals. The carry handles it comes with allows for easy maneuvering and placement. In addition, it is covered by a 1-year warranty.
|Reserve capacity rating of 260 minutes||Short warranty – only 1 year|
|Battery belongs to group size 31|
|Recharge time ranges from 12 to 24 hours|
|Features the absorbed glass mate technology|
|Features convenient carry handles|
As the only negative comment we have about it is that the accompanying warranty is not the lengthiest out there, we understandably back this deep cycle battery and recommend it. Among its notable highlights stand the fast charge time, the lengthy 10-year service life, and the 260-minute reserve capacity, along with its reasonable asking price, of course.
The XMC-31 is a deep cycle battery which comes with an ABS plastic material for the container, weighing a total of 74.6 pounds. It has a 20-hour nominal capacity of 100Ah and it belongs to the 31 group size. It provides 925 cold cranking amps, 1535 pulse hot cranking amps, and 1180 marine cranking amps.
It has an impressive reserve capacity of 200 minutes. If it is being handled properly, it will provide a service life of up to 8 years. It takes about 6 and a half hours for it to recharge, and you can use an alternator or any charger for this task.
It comes with a carry handle which allows you to place it where you need with ease. Due to the fact that it features the absorbed glass mate technology, it is shock and vibration resistant. It features 1/4″ studs for copper terminals and SAE. When it comes to warranty, it is backed up for 2 years by the manufacturer.
|Large acid container retains more power and provides faster charging times||Slightly more expensive than similar maritime accumulators|
|Belongs to battery group size 31|
|Lifespan of up to 8 years when it is in service|
|Designed to tolerate knocks and strong vibrations|
|Allows charging from all chargers, alternators, and even solar panels|
A deep cycle battery worth your money as it boasts a long 8-year service life when used under proper conditions, the XCM-31 is a must-have for any boat owner. It is designed to take a “beating” as it is shock and bump resistant at a higher level than what this niche has accustomed us with. Furthermore, as opposed to most deep cycle batteries on the market, it is backed by a lengthy 2-year warranty that you can take full advantage of.
The D34M is a dual purpose battery that weighs only 43.5 pounds. The material of its plates is pure lead-tin alloy, the container being made from polypropylene. It has a 20-hours nominal capacity of 55Ah and it belongs to the 34 group size.
It provides 750 cold cranking amps, 1245 pulse hot cranking amps, and 870 marine cranking amps. It boasts an impressive service life of up to 10 years. The recharge time is between 6 and 12 hours, and you can use a constant voltage charger or an alternator for this task.
It is shock and vibration resistant due to the fact that it features the absorbed glass mate technology. Also, it is backed up by the manufacturer for no less than 2 years.
|Dual purpose design makes it versatile in use – can be used as a deep style or cranking accumulator||A bit expensive when compared to similar batteries|
|Quick recharge time ranging from 6 to 12 hours|
|Non-spilling design lengthens its lifespan and enhances safety in use|
|Features high-quality pure lead-tin alloy plates|
|Lightweight design – weighs only 43.5 pounds, so it is easy for you to maneuver it|
If you are on the hunt for a versatile boat battery, look no further than the D34M as this dual purpose accumulator perfectly plays two roles as it can be used as either a cranking or deep cycle battery. Sure, it does come at a spicier price than what you have grown accustomed to, but considering its multi-use design, its tag becomes understandable.
This is a deep cycle battery that weighs just 25 pounds, making it the lightest in our top. The plates are made from military grade alloys, and the container is made of ABS plastic. It has a 20-hour nominal capacity of 35Ah, and it belongs to the U1 group size. It provides 300 cold cranking amps, 500 pulse hot cranking amps, and 390 marine cranking amps.
It boasts an impressive service life of 8-10 years if it is properly taken care of. It is weatherproof, which means that it does not have an operating temperature limit. It has a reserve capacity of 75 minutes.
The charging options for it are a microprocessor controlled charger, an alternator, or a charge controller. It is shock and vibration resistant due to the absorbed glass mate technology it comes with. It features dual terminals with hex head bolts. Also, it is backed up by a 1-year warranty.
|Weatherproof design makes it withstand any temperature without damage being received||Inferior reserve capacity of only 75 minutes|
|Pulse hot cranking amps rating of 500|
|Enhanced shock and vibration resistance prolongs its lifespan|
|Comes at a great, affordable price|
|Belongs to group size U1|
By definition a bang for your buck, especially considering the fact that it comes at a cheap price, this maritime accumulator has impressed us with its long 10-year service life and weatherproof design which ensures it will work perfectly regardless of the temperature. However, there are downsides to it, especially if you compare it side by side to other deep cycle batteries on the market, as it does not deliver the best reserve capacity nor CCA and MCA ratings.
Providing up to 400 cycles at an 80% discharge, the PC680 presents you with a long-lasting battery that offers power to your boat and onboard accessories for years on end. As it is capable of fully recharging in only 4 to 6 hours, its efficiency is undeniable. Due to the fact that it boasts the AGM technology, you will be able to mount it in any position you like as there are sure to be no acid spills.
One of its traits that add to its efficiency and make it a popular option is the fact that it provides up to 15% more plate surface area. As there are no dead spaces between the cylinders of the battery, it provides more reserve capacity than other options do, more precisely a hefty 24 minutes. It is designed to be shock, vibration, and corrosion resistant so that it will service you for as long as possible.
Due to the fact that this dual purpose battery boasts a lightweight design, you will have no trouble mounting it on your own. Additionally, the manufacturing company offers for it a 2-year warranty. Sure, it might not be as lengthy as what Odyssey offers, for example, but it’s more than enough considering that this product comes at a reasonable price as well.
|Offers up to 400 discharge/recharge cycles at 80% depth of discharge||Not the best CCA rating out there – only 170 amps|
|As it is tolerant of extreme temperature conditions, it provides a lengthy lifespan|
|As it delivers a complete mounting flexibility, you can install it in whatever position you want|
|Best-selling product on the market|
|Comes at an affordable price|
If your main interest is to have a battery which provides a lengthy service time, than the PC680 is what you need. Not only can it service you for up to 10 years, but it comes at a reasonable price and withstands extreme temperatures like a pro.
This Group 34R battery is ideal for marine applications as it is designed to withstand extreme temperatures, high vibrations, and deliver power to even the most demanding on-board accessories. It comes at an affordable price, and due to the fact that it delivers a long service life, it spares you of making new purchases any time soon.
It boasts a maintenance-free design that makes it ideal for forgetful people. It is rated 775 for cold cranking amps, and 120 minutes for the reserve capacity. As it features a boosted electrolyte suspension system, it is able to absorb more electrolytes in order to provide protection to internal components.
What makes us so confident in the battery’s long service life and great power output is the fact that it features the full plate AGM technology. Furthermore, the manufacturing company warrants it for 3 years since the purchase date, which shows that this is a trusted product with a fine design and construction.
|AGM design ensures the battery withstands the high power demands of accessories and elevated temperature conditions|
|Spill proof and maintenance free design|
|Can be mounted in any position you need|
|There are 4 other group size options to choose between – Group 34, Group 35, Group 48, Group 49|
|Free replacement warranty is available for 3 years since the moment of purchase|
The safeguards this battery has in place to ensure a high protection against vibration ensures it will serve you for many years. Balancing its long service life and the affordable asking price, it’s safe to say that this is one of the best acquisitions you could make.
This is a dual purpose battery designed to be used for both cranking and deep cycle and it is suitable for cars and marine as well. The Cold Cranking Amperage is 775, which is not so much compared to more powerful batteries but it is enough to get it started.
FP stands for the flat plate design that consists of six sets of plates separated by glass mats arranged in a straight line. It is robust and designed to last, with a non-spill AGM construction which ensures maximum safety in use. It features a strong starting and staying power that keeps it running like new each day.
Being a deep cycle battery makes it more resistant to higher cycling and more efficient while recharging. Thanks to the SureLife Graphite technology, you can rest assured knowing it will yield highly on water.
|AGM technology ensures a maintenance-free operation||Cold cranking amperage of 775 makes it less powerful when compared to other dual purpose batteries|
|High durability granted by the Surelife graphite technology it features|
|Dual purpose design recommends it for deep cycling as well as cranking purposes|
|Dry cell design ensures a spill-proof environment – can be mounted in any position|
|Recombinant technology does not require distilled water refilling|
As this Exide Edge battery is intended for deep cycle as well as cranking applications, it provides the versatility many boat owners are yearning for. Furthermore, the good asking price makes it all the more appealing, cancelling out its flaws, especially for those who are not looking to make a hefty investment.
A maintenance-free battery which is not only zero hassle but that comes at an unexpectedly cheap price, the ML35-12 is one of your best solutions as a boat owner. Designed to be used for trolling motors, it measures 7.68 inches by 5.16 inches by 7.13 inches. Its spill proof design makes it outstanding in terms of durability.
You can mount it in any position you desire or is needed. Unlike other batteries, it is intended for use in float as well as cyclic applications. Furthermore, it perfectly withstands shock and vibration, so you need not worry that these two elements might produce any damage.
Lastly, the manufacturing company, Mighty Max Battery more precisely, offers a full 1-year warranty on this product, as well as a 30-day money back guarantee. Thus, if anything happens during this trial period or you are simply unsatisfied with it, you will receive your entire investment back from the manufacturer if you return it.
|One of the cheapest entries on this market|
|Long service life which ensures this is not an investment you will regret making|
|An AGM battery which boasts a valve regulated design|
|Can perfectly withstand any shock or vibration thrown its way|
|Maintenance-free design makes it no hassle to use it|
If money is an issue for you, but you still want a maritime battery which will serve you for years, this is your go-to option for sure. Designed to withstand the harshest of conditions, and boasting a long service life which is granted by its absorbed glass mat technology, you will not regret purchasing it.
The technology refers to the chemistry, electrolyte medium, and conduction medium of the battery. Based on these elements, there are four basic types of maritime batteries, more precisely AGM, flooded, gel, and lithium-ion batteries.
Based on the tasks the batteries can perform, they are separated into three different application categories, which are starting/cranking, deep cycle, and dual operation.
Boat batteries are unbelievably pretentious when it comes to charging. The consumed energy has to be put back immediately, or else it will sulfate, this being the moment when the performance and longevity decrease. Just be careful what you use to recharge them because these batteries have different charging options. For example, our top picks have the alternator as a common charging option, but they can be charged using other methods as well.
The most reliable batteries out there boast a design that makes them more durable when compared to other models on the market. This means that they are an investment worth making, providing a long service life which ensures you won’t go shopping for another battery for a long while.
Another important advantage is the fact that the batteries require little to no maintenance. These batteries are AGM, lithium, and gel batteries, being the least pretentious due to the fact that their design prevents spills and terminal corrosion. A perfect example of a battery which does not require much in the way of maintenance is the Optima Batteries 8016-103 D34M, which is one of our top choices.
Of course, vibration and shock resistance are other aspects worthy of consideration, the finest batteries on the market boasting a high resistance to them. This means that they are less likely to get damaged, providing users with a reliable and constant top-notch performance, no matter what they are put through.
Before you hurry to make a certain purchase, you first have to consider the purpose of the boat accumulator. For example, if you plan on simply using it to crank the boat, you need a certain type of battery, while if you want to crank the boat and run onboard appliances, you have to go with another type of accumulator. The purpose that you need it to have will show you if you must go with a starting/cranking, a deep cycle, or a dual purpose model.
The reserve minutes show for how long it can sustain a 25 amps load before it drops to 10.5V at 80°F. The longer, the better when it comes to this aspect, meaning that you must choose a battery with a long reserve capacity, like the 260 minutes offered by the VMAXTANKS VMAXSLR125.
The Amp-hours measure how much energy it can deliver over a 20 hour period at a constant rate of discharge until the voltage reaches 10.5V. To ensure you are making the right choice, go with an accumulator like the Exide XMC-31 MegaCycle AGM 200 which has a capacity of 100Ah.
CCA and MCA are power measurements you can guide yourself after to determine whether you have your eyes set on a quality battery or not. They show the amount of amperage it can provide for 30 seconds to maintain a minimum of 7.2V at a certain temperature.
Of course, you have to consider the longevity of the accumulator as well. When talking about this type of a battery, the longevity refers to its cycle life, showing how many discharge cycles it provides over its lifespan. From this point of view, deep cycle models are superior to starting/cranking models due to the fact that they can cycle repeatedly, meaning that they last for a longer period of time. To measure the longevity of the batteries they sell, the manufacturers discharge the full batteries at a temperature of 80°F until their voltage reaches 10.5V. Afterward, they are recharged, the process being repeated until the batteries fail to hold half of their rated capacities.
Never mix in the bank old batteries with the new ones that you buy. You might be tempted to think that this is a good idea because it will increase the overall capacity, but in fact, you are just harming the new batteries that you have bought. This happens because the old batteries do not perform as well as they did, deteriorating the new ones too.
What you must never forget is that cleaning is occasionally required. When dirt gathers on top of it, take a cloth and wipe it off. Also, as soon as corrosions appear on the terminals of the battery, handle them by using a wire brush post cleaner. By doing this, you extend the lifespan of the accumulator, and you maintain the constant and powerful flow of electricity that the boat needs.
Without a doubt, charging is the most important maintenance task you have to do in order to keep the accumulator up and running for a long time. First of all, make sure you respect the recommended number of hours for recharging the specific battery you choose. Also, do not forget to recharge it immediately, especially if it has been stored separately or the boat has not been used for a long time.
No matter the type of accumulator you go with, make sure to occasionally check it for cracks and bulges. If these problems do arise, it means that either the alternator of the boat has a problem or the charger is overcharging it.
Although it might sound complicated to install a new battery in your boat, it is a fairly easy procedure even for those who have not dealt with these kinds of tasks before. In case you have installed a car battery before, you will find it a lot easier to install a boat accumulator as well, the whole task taking less time. Nonetheless, regardless if you are experienced or not, it is still a chore that you will surely be able to perform.
First, you need to buy a high-quality battery and check if you have an accumulator box as well. In case you do not already have one, buy it as it is important because it protects the battery from the elements. For the procedure, you need two wrenches that you will use to remove the connections of the old battery and install the new one. Also, you should have a small container of vaseline with you as it comes in handy for greasing the terminals of the accumulator.
To replace the old battery with a new one, locate it and switch it off. Disconnect the cables, proceed to lift it out of the box, and store it somewhere safe. Now that the old battery is out of the picture, you must check the terminals of the maritime accumulator that you have bought to ensure they provide a reliable connection. Apply a small amount of vaseline to these terminals and reconnect the cables while making sure no loose cables remain in your way. Use a wrench to check for the cables to be firmly attached to the terminals of the battery, and place the lid back on the accumulator box.
After installing it, it is time to check if the installation has been successful and if the battery works. Switch the accumulator’s power on and turn on an electronic device that uses it as a source of power. If the electronic device works, it means that the installation was a success, and you can start the boat to sail off with it. If it does not work, check the whole procedure again to make sure the cables are well connected to the terminals.
Odyssey is one of the most respected brands on the market, offering nothing but the best quality boat batteries out there. Odyssey batteries are manufactured by EnerSys, which is a global leader in stored energy solutions for industrial, military, and automotive applications. Now that you are aware of what actually stands behind the manufacturing process of some of the finest batteries on the market, like the Odyssey 31-PC2150S, it is easy to understand why this brand is worth your attention.
VMAXTANKS is a brand that solely focuses on the production of high-end batteries which deliver impressive performance while requiring minimum maintenance and maintaining a good value. Nonetheless, what makes this brand stand out from its competitors is the fact that it uses only superior quality materials in the production process, meaning that the batteries they sell will surely last for a long time.
Another reliable name in this industry is the Exide brand that has been dedicated to manufacturing high-quality batteries for a long period of time, namely since 1888. One of the main purposes of the company is to help their customers achieve great results by using innovative batteries. Also, the brand is well-known around the world, being the first choice for many people. Furthermore, they offer great customer support for all those who want any additional information.
Optima is a brand that has been around for a little over 40 years, during this period of time bringing impressive innovations. Among the most notable achievements of this brand stands the fact that it was the first to introduce maintenance-free lead-acid batteries. Also, in the past decade, the brand has managed to impress people by producing the first digital battery charger and maintainer.
The 20-hour nominal capacity of a marine battery shows the number of amps it can deliver over a period of 20 hours. In order to establish what batteries on the market deserve our attention and to figure out how exactly to rank them, we took this aspect into consideration. This is the reason why our top picks are the Odyssey 31-PC2150S, VMAXTANKS, VMAXSLR125 and Exide XMC-31 MegaCycle AGM 200 providing at least 100Ah when it comes to their 20-hour nominal capacity.
The cold cranking amps represent how much amperage it provides for 30 seconds in order to maintain a minimum voltage of 7.2V at 0°F. Knowing that a bigger amperage shows a better quality, we could not overlook the Odyssey 31-PC2150S and the VMAXTANKS VMAXSLR125 when making the final choice. The accumulator produced by Odyssey boasts an impressive CCA of 1150, while the battery that Exide manufactures, provides 1130 when it comes to CCA.
The pulse hot cranking amps show how much amperage it can provide over a short duration high rate discharge. To figure out the PHCA of certain batteries, we have multiplied the CCA they offer by 1.66. This is the formula you can use to find out the PHCA of any battery out there that does not specify it.
The marine cranking amps show how much amperage it produces for 30 seconds to maintain a voltage of at least 7.2V at 32°F. Just like in the case of cold cranking amps and pulse hot cranking amps, the bigger this amount is, the better. Of course, our top picks, the Odyssey 31-PC2150S and the VMAXTANKS VMAXSLR125 both have an impressive MCA rating, reason why we had to rank them higher than other batteries.
When rating the batteries we consider as being the best out there, we have taken a close look at their reserve capacity as well. The reason why reserve capacity is of a great importance is that it shows how many minutes it takes for the accumulator to discharge up to 10.5V by 25 amperage discharge at a temperature of 80°F.
Time is of the essence these days, this being the reason why we had to rate the maritime batteries according to their recharge time and options. All of the batteries in our top can be recharged using an alternator and other charging options. Also, the recharge time influenced our ranking, this being the reason why the Odyssey 31-PC2150 is our top choice, completely recharging in a maximum of 6 hours.
When being on the water is what relaxes you the most, you feel the need to spend as much time as possible on your boat. However, the difference between a smooth ride and a horrifying one can be made by one sole part – the battery of the aquatic vehicle. Taking the number one spot on our top, the Odyssey 31-PC2150S is the most trustworthy product to go for. This starting and cranking battery belongs to the group size 31, and it boasts a long service life of up to 10 years, thus granting that you will recuperate your investment in it. The model that we must admit drew our attention the most was the VMAXTANKS VMAXSLR125 which utilizes the absorbed glass mate technology that ensures a long and reliable service life, and that provides an outstanding reserve capacity rating of 260 minutes. If we were to recommend the best marine vehicle battery in terms of pricing, however, our pick would definitely be the VMAXTANKS VMAX857. As you have probably already concluded on your own, it is one of the cheapest high-end options to go for. Furthermore, it does not shy away from delivering a reliable performance, and its shock and vibration resistance makes it a long-lasting investment too.