[Top 5 Rated] Best Marine Battery: Reviews(2022 Update)

Surprisingly, the lead acid battery that we use today is pretty much the same as our great-great grandparent’s lead battery. So once you understand the basics, it will be much easier to sift through the information and reduce sensory overload when looking through all of the marine battery reviews. Most batteries are constructed in much the same way with a few modern twists in construction and chemicals.
If you printed all of the information available for boat batteries and brands, you would be buried in paper. There are several things to understand about marine batteries before going any further in your search for the best marine battery for your needs. Some things are basic to any good battery.
In this article, we will provide a complete guide you can choose the best battery for your boat. But first let’s consider some of the best marine batteries on the market.

Mighty Max 35Ah$Buy
Mighty Max 55Ah$$Buy
PowerStar MR107 70AH$$$Buy
VMAX MR96-60 60AH$$$Buy
Trojan SCS150 100Ah$$$Buy
Renogy Battery 100Ah$$$Buy
Chrome Battery 110Ah$$$Buy
Trojan SCS225 130Ah$$$Buy
Optima 8006-006-FFP 50Ah$$$Buy
VMAX MR127 100Ah$$$Buy
Optima 8016-103 55Ah$$$$Buy
VMAX SLR125 125Ah$$$$Buy
Optima 8027-127 66Ah$$$$Buy
XS Power D3400R 65Ah$$$$Buy
Optima 8052-161 75Ah$$$$Buy
Lifeline GPL-27T 100Ah$$$$$Buy
VMAX SLR155 155Ah$$$$$Buy

Best Deep Cycle Marine Battery

#1 VMAX MR127 100Ah AGM Deep Cycle Battery Review

VMAX MR127 at a glance

If you are after a superb all-rounder group 27 battery, that is built to last, can be mounted any way you need it to be, requires no special knowledge to maintain and will last for years to come, the VMax MR127 is the battery for you. This battery is built with some seriously high-tech specifications that will help keep your trolling motor juiced up for hours whilst you stay focused on the fishing, or just soaking up the breezy sunshine.
VMax use an electrolyte suspension system to help make the battery both more robust and more reliable, making it the perfect choice for marine power. As a result, you will see improved performance from this battery in comparison to its competitors and even if you repeatedly discharge this battery it will keep springing back to life with a suitable charger. You’ll also get years of service from this battery.
A feature of this battery that makes it a great choice for the nautically minded is the hours it gives you of trolling power off of a single charge. With a suitable onboard charger and some solar power, you can be off-grid for days and still not have to worry about where you’ll next be able to use main power, making this a suitable battery for those with an interest in green energy.
This battery provides a surprising amount of power that has enough storage to see you through a weekend of heavy fishing. So if you want a battery with high-end technology which ensures reliable performance, long life, and hours of worry-free trolling, then this VMax is a battery that won’t let you down.

Q&A: How heavy is this battery and what are the dimensions?

A: The battery is a hefty 68 Lbs and has dimensions of 12 x 6.5 x 8 inches.

Cheap Deep Cycle Marine Battery

#2 Mighty Max 12V 55Ah Trolling Motor Battery Review

Mighty Max 12V Trolling Motor at a glance:

If you’re after a reliable battery for a smaller trolling motor up to around 36 Lbs, with a decent 35-Ah battery, then you’ll be more than pleased with this number from Mighty Max. You’ll also be treated with a 1-year full warranty, sturdy vibration-proof design, and brilliant discharge recovery meaning you get great value for money from this battery. The spill-proof AGM design also means you can mount this however you need too.
Coming at the low end of the market, this battery can be a great choice if you have space for two, as a couple of these will provide you with the energy you’ll need to go fishing all weekend without having to worry about power. The low price doesn’t mean this is built shoddily though, and with a full 1-year warranty you can be sure this battery is built to last and stand up to some rough waters.
An excellent feature that belies the cost is this unit’s performance in high and low temperatures. This battery is a great choice for those who just can’t get enough of fishing and don’t care whether the sun is shining or the rain is falling. You also don’t have to worry about topping up the water or electrolyte, so if you don’t want to have to worry too much about battery care this is a good cheap marine battery for your needs.
So if you’re after a low cost trolling battery that packs a punch, has an impressive 55-Ah, deals well with deep discharges, and is robustly designed making it perfect for mounting wherever you need it, then this will be the perfect battery for you.

Q&A: Would this be suitable for a 46 Lb trolling motor?

A: This will easily power a 46 Lb trolling motor for hours.

Best Starting Marine Battery

#3 Odyssey 31-PC2150S Heavy-duty Cranking Battery Review

Odyssey 31-PC2150S at a glance

For a battery that is sure to keep you afloat whatever the weather then this excellent starting marine battery is a superb option. Manufactured by Odyssey, you can be confident that you are getting a top quality marine battery for your vessel. It is an AGM battery and is constructed using pure lead plates to ensure it is robust – with this well thought out design these batteries will last up to 70% longer than your average deep-cycle battery.
With a CCA rating of 1150 this battery has a significant amount of power to get you going, so you don’t have to worry about being at a standstill. It can also withstand a large depth of discharge, 80%, and is able to recover well if you let your battery’s charge go down to that level. With the ability to cope with 400 cycles at this rate of discharge, you will be enjoying your Odyssey marine battery for a long time.
Another excellent feature of this starting marine battery is how quickly it recharges. Taking between just 4-6 hours to reach 100% charge – a very fast turn around and one of the fastest currently on the market.
The quality of this heavy-duty battery will not disappoint, it is designed to be impossible to spill so that you can mount it wherever is convenient and it is also built to withstand any vibrations and shocks that might come its way. Another feature that adds to its robustness is that it can cope with both very high and very low temperatures – it really is a great any weather battery.

Q&A: How heavy is this starting marine battery?

This Odyssey battery weighs around 78 pounds.

Cheap Starting Marine Battery

#4 Optima 8006-006-FFP 34M Starting Battery Review

Optima 8006-006 at a glance

A cheaper option for a good starting marine battery is this Optima 8006-006. It has a lower CCA than the more expensive Odyssey battery above but still can provide 800 CCA which is enough to start a small or medium-sized boat. It is also much lighter than the Odyssey, under 40 pounds, so is a good option for marine vessels that are on the smaller side. It also promises to deliver starting power even when the weather is not good.
Fitted with SpiralCell technology this battery is quicker to recharge and has a longer running time than most marine batteries – a definite plus point. It also has a very slow discharge rate – so can be left unused for up to a year and still be alright (if not kept in a hot environment).
This Optima starting marine battery is also extremely safe and durable. Sitting in a thick plastic casing, this battery can withstand the vibrations and shocks that are inevitable during marine use – essential to ensure your battery lasts as long as it should do. It is also sealed tightly so that it cannot spill – meaning you can mount it wherever you need to on your vessel.
If you do purchase one of these starting batteries be sure to realize that you will need a separate deep cycling battery as this one does not have this ability. However, if a starting battery is what you need then you won’t be disappointed with this choice. You will also be pleased to hear that it comes with an excellent 2 year warranty period.

Q&A: What charger do I need for this marine starting battery?

Look for a charger that is a 12V DC charger – this will be suitable for this product.

Best Dual Purpose Marine Battery

#5 Odyssey 31M-PC2150ST-M Dual Purpose Battery Review

Odyssey 31M-PC2150ST-Mat a glance:

If you’re after a battery suitable for start-up power, that doubles up as a deep cycle battery, then this Odyssey will be just what you are after. With 70% longer life than traditional deep cycle batteries, high-efficiency recharging (fast battery recharge), vibration resistance, tolerance in extreme temperatures and an impressive 1150 Cold Cranking Amps (CCA), this is a top-end battery that just keeps on giving for years and years.
With a service life of up to 10-years, without needing a degree in battery care, you’ll save yourself a lot of hassle with this investment. The sturdy design also ensures even rough treatment whilst out trolling will not cause your battery to fail. With an incredible temperature range, you can also use this battery in almost any condition you can imagine, whether you plan on going ice fishing or just enjoying some lake fishing in the sunshine.
An impressive 4-year full replacement warranty provides you with all the security you need to be sure this battery will last the test of time and you will also save time with charging thanks to the high-tech design. You can also mount this battery in any position, making it a great choice for those with limited options for installation.
So if you want to welcome a unit that doubles up as starting and deep cycle battery to your trolling family, that will be a reliable battery for years to come, and works in most extremes of weather, then you will not be disappointed with this model.

Q&A: How long can you run a 55 Lb trolling motor off this battery for?

A: You’ll comfortably get 8-hours continuous power of a single charge, plenty of time for fishing.

Cheap Dual Purpose Marine Battery

#6 Optima 8016-103 D34M Dual Purpose Battery Review

Optima Batteries 8016-103 D34M  at a glance:

If you need a battery that gives you greater starting power than traditional batteries, whilst also offering deep cycle usage, this Optima battery is the best choice for your needs. You’ll also get an impressive 750 Cold Cranking Amps, a super design ensuring vibration resistance, and leak-proof lightweight design that can be mounted in any position. This battery will keep you going the distance for longer than most of its competitors.
The maintenance-free battery lasts for ages and can be recharged over and over without coming to the end of its life, so you’ll get great service from this product. It works great with trolling motors and any other electrical devices you might have installed on your boat too, whilst the sturdy design ensures you can give this battery rough treatment and not have to worry about it conking out on you.
The impressive ‘SpiralCell Technology’ is what makes this battery stand out from the crowd, as it ensures precision controlled power, superb ability to cope in tough weather conditions, efficient output and starting power most battery lovers can only dream of. At just under 44 Lbs you get a lot more bang for your buck pound for pound with this wonderful little number.
So if you’re after a cheap marine battery, that is cheap in price but not in nature, and is capable of generating start-up power as well as being a deep cycle battery, and can offer you reliable power from any mounted position, then you will not regret your investment in this Optima blue top.

Q&A: Does this battery need to be vented outdoors?

A: This is an AGM battery that can be mounted in any direction and do not require venting.

Battery structure – Five major parts

The resilient plastic container, positive and negative internal lead plates, plate separators made of porous synthetic material and electrolyte (a solution of sulfuric acid and water). This mix is better known as battery acid with modern applications adding some other ingredients. Finally, lead terminals are the connection point between the battery and whatever it powers.

When pairing a positive and negative plate with the separator, the combination is called an element. There is only one element per cell. The cells are connected with a metal that conducts electricity. The lead terminals or posts are welded on. The construction materials used to manufacture the posts have changed over the years as well. Many of the materials that are used have been designed for the purpose of reducing corrosion, for example, many manufacturers offer stainless steel terminals. The last two steps are to charge the battery and adhere labels.
The electrolyte is lead and lead oxide, which traditionally was a 35% sulfuric acid and 65% water solution. The electrolyte causes a chemical reaction that produces electrons. Over time pulling a load, the sulfur rests on the battery plates reducing the amount of sulfuric acid in the electrolyte. When the electrolyte loses sulfuric acid, electrons stop being made; so, there is less power created. When the battery is charged, the sulfur returns to the electrolyte, returning power to the battery. Technological advances have provided different mixtures that reduce the amount of sulfuric acid that adheres to the plate thus extending the reserve time (the amount of time the battery can take a load without being charged).

What are the different types of Marine batteries?

There are three major chemistries to consider when searching for a battery, flooded batteries, gel batteries, and AGM batteries, as well as one newcomer whose technology was developed to power newer amenities created from newer technology, the lithium battery, which is making an appearance on more and more boats.

#1 Flooded batteries

, also called wet batteries, use a reservoir of liquid sulfuric acid to create a pathway between plates to produce the electrolytes. The electrolytes produce hydrogen and oxygen while the battery is being charged which, of course, requires a vented battery box. These batteries require periodic refilling with distilled water in addition to other maintenance needs.

#2 Gel Batteries

are named from the combination of sulfuric acid, fumed silica, pure water, and phosphoric acid making up the electrolyte. The gel is viscous and prevents leaks. These are recombinant (resulting from new combinations) from the small amount of gasses that combine to make water and prevent drying out due to charging. The charging system must be carefully regulated to prevent high voltage overcharging. No vents mean no gasses escaping, which means less maintenance.

#3 AGM Batteries or Absorbed Glass Mat

batteries feature glass mat separators saturated with acid between the battery’s positive and negative plates. While charging, pressure valves allow oxygen produced on the positive plate to migrate to the negative plate and recombine with hydrogen and produce water. These batteries have a lower internal resistance that allows for greater starting power and charge reception. Again, with no gasses escaping, less maintenance is needed.

#4 Lithium Technology

batteries are lighter than the lead-acid counterparts. These batteries can be discharged 800 times to 100% and recharge in about an hour. They work beautifully for electric boats and other high-performance applications.
The costs involved with marine batteries varies by type, brand and application. An economically priced battery used for the wrong purpose and/or not properly maintained, will create more expense in the long run.

What is the best type of battery for Marine?

The flooded battery is the least expensive of all the battery options available. However, they do require more maintenance than other batteries. If you want more fun than maintenance, it would be wise to invest in a more advanced technology.
For many owners, the Gel technology has proven to be overrated. Others are very pleased. Priced between the flooded battery and the AGM battery, there are reports that the concerns about vibration and the lower cycle rates, and the environmental concerns surrounding the silica used to gel the electrolyte make this a less appealing alternative. It is safer with less maintenance than the flooded battery, so it still may be worth the cost.
The AGM battery seems to be at the top of the list for traditional technology. The glass mat resists vibration and makes the battery more spill proof than the flooded and gel chemistries. It is longer lasting than both. There are significantly higher upfront costs that do vary between brands. Many reviews of the AGM battery do warn the buyer than ‘you get what you pay for’. Finding a truly higher quality battery seems to be worth the cost, but only when properly maintained.
The most costly battery to purchase is the lithium battery. The upfront costs for a quality battery can start at three times the cost of the flooded battery. The costs for batteries really does depend on the brand and the habits of the user versus the manufacturer’s instruction
Considering brand, chemistry, warranty, and user habits make calculating lifetime costs very difficult. If you pay only $50.00 for a battery that only lasts for one season compared to a $200.00 battery that lasts 6-8 years you may well want to put out the $200.00. That only figure accounts for a small boat that only requires one 12 volt battery. The larger the boat and the more accessories requiring power will certainly increase costs. Looking at some different chemistries and technologies there are some numbers that can be used for guidance.

Battery Comparison: Lithium batteries vs Traditional chemistry

Lithium batteries

are the newest technology, and they are still advancing and of course prices vary over time. The following is a breakdown of costs per amp for a medium sized 12-volt marine battery.

The packager bundle includes a Battery Management System (BMS) while the DIY is individual cells purchased with the BMS purchased separately.

Traditional chemistry

battery costs are quite different.

These are certainly conservative estimates, but it is always ‘better to be safe than sorry’.

Applications for Use

There are three major applications to consider when choosing a battery
Starting the motor, maintaining a charge when out on the water away from the shore, and the feasibility of a dual-purpose solution.

Starting battery

Crank the starter of the boat’s engine; they are good for a short burst of 75-400 amperes for 5-15 seconds when the alternator takes over. Like other batteries, they are also constructed with the alternating layers of negative and positive plates, but the plates are thinner and more numerous. The design of the plates allows for more surface area enabling the battery to generate high amperage bursts of current. These batteries are fragile, and they are not as effective in hostile climates. The harsh, hostile climate and deep charges will reduce their operation lifespan. These are sprinters, not long lasting batteries, and are not able to withstand the enduring charge needed for electronic equipment or a trolling motor.

Deep Cycle battery

Works well for applications where there is no shore charge available, or there is no solar charger available for recharging the battery. The plates in the deep cycle battery are thicker with more antimony and, therefore, are better able to maintain a charge. On average they deplete 50-70% of capacity when used overnight. Of course, this depends on what the battery is powering. The more amenities, the faster the capacity is depleted. Modern technology has created the need for elements of the deep cycle battery contributing to longer reserve time and lifespans.

Dual-purpose battery

It is good for certain applications. However, it is not always as effective as a starter battery for starting or a deep cycle battery for the longer use of the remaining electric system. In many cases, using the battery designed for the specific purpose is best. If necessary and feasible, the dual-purpose is a good compromise. These batteries can withstand a deep charge better than a starting battery. There are some specific instances where a dual-purpose battery works best.

How do you calculate amp hours for a battery?

When buying a battery, look for the greatest reserve capacity or amp hour rating. To determine the battery needs of your boat, it is important to calculate the AMP hour capacity you need. This is not as difficult as it sounds. Add up the 12-volt accessories you have and multiply that by 20. It is only an approximation but will still give a good idea of your boat’s requirement. It is also a good idea to find a battery that provides at 20% over that number.
To find the proper starting battery, you must know the size of the engine that will determine the MCA (Marine Cranking Amp) needs. Of course, the higher the horsepower of the engine, the higher the MCA rating you will need to buy.
It is important to consider the physical size, cable hookup, and terminal type needed. In a harsh climate where the boat will be stored for a length of time, a GEL or an AGM may be the better options. The broader the warranty, the better the battery.
The current average lifespan of a battery is 6 months to 48 months, and few make it to the 48th month. The life of the marine battery can be extended by hooking it to a solar charger when not using it for a period.
If you choose one chemical type battery for a starting battery, the same chemical type must be used for deep cycle battery in the same boat. For example, if an AGM battery is used as a starter battery an AGM must be used for the deep cycle battery as well.

Care and Maintenance of the Marine Battery

The time to look at the care and maintenance of batteries is before you buy the battery. You could purchase the best marine battery money can buy, but if it is not cared for properly the money is wasted. Some batteries may need extra attention and others less, but some maintenance is needed on all types and manufacturers.

It is also important to know when it is time to replace your battery. Watch for symptoms such as

Being stranded away from shore is not where anyone one wants to be on a beautiful day of boating. Remember if you don’t take care of your battery, your battery won’t take care of you!
Now that you know how to take care of the battery and when to replace the battery, we can look at some marine battery reviews.

List Marine Battery Brands

ACDelco batteries are pressure tested to help avoid a leak, strength, and rigidity. Thermoplastic reinforced plates help increase protection against plate shooting for improved durability. Some ACDelco deep cycle models feature built-in ‘Green Eye’ hydrometers. Both positive and negative grids are lead/calcium alloy to maximize corrosion resistance that, in turn, increases the cycle life and reduces cycle life for consumption and battery durability.
Exide Edge batteries tout 775 cold cranking amps to its list of features. You can operate all onboard accessories with its 145 hours of reserve time. It boasts SureLife Graphite Technology to maximize energy capacity. The battery is sealed to ensure it is completely non-spillable.
Lifeline products are well known and trusted marine products. They are available nationwide and carry a good 5-year pro-rated warranty. Without specifying the individual technical traits, this battery line is manufactured by the same company that is an industry leader in aerospace battery lines and whose product has been proven through use by many branches of the US military.
Optima’s pricing is a little higher, but most reviews hold that the price is well worth the difference. It touts a 155-minute reserve, starting power in bad weather, and 15 times more resistance to vibration making it a durable product. The BlueTop battery is designed as a dual-purpose battery for a maintenance-free power source.
Power King Batteries have a reputation for reliability. They feature stainless steel terminals, hybrid grids with centerline lugs, high-density oxide and polyethylene envelope separators, and safety vent caps. Power King Batteries are also resistant to excessive vibrations that can lead to failure.
Rolls Batteries are respected for reliability in northeastern climate conditions. This outlasting service is enhanced by dual container construction promising the elimination of breakage due to rough handling and abuse. Repairs are simpler and less time-consuming allowing the boater to get back in the water.
Sonnenschein batteries enjoy international acclaim. The parent company is located in Germany, and the products are used on continents around the world. They have unique microfiber glass separators, have enough electrolytes to sustain the life of the battery and should not be opened. Careful attention should be paid to the voltage/temperature guidelines.
Superior Superflex batteries boast of a dual post design, maintenance free deep cycle battery. Its high-density premium oxide, high-performance separator and embedded glass mat combined with corrosion resistant terminals make this battery a good fit for all outdoor applications.
Trojan batteries are the pioneer batteries. Trojan started its journey in 1925 and continued to research and develops to continue providing an exceptional battery. Trojan touts proprietary formulas for separators and paste formulas for enhanced performance and durability.
US Battery products have Microrib Flexsil separators, Crystalock high-density paste to maximize runtime and battery life. The fiberglass backing ensures maximum life, a positive locking system called SeedCap venting, Rotocast High Torque defect free terminals and heavy-duty internal connections all designed to outperform. US Battery is also one of the pioneering manufacturers making batteries since 1926.
Interstate Batteries carries a full range of marine batteries to choose from. Whether you need a starting motor or trolling motor, Interstate has a solution. The ECL Professional starts at 690 CCA, and 140 RC minutes. Unfortunately, there is only an 18-month replacement warranty. The Deep Cycle models provide from 100 RC to 390 RC minutes, but the replacement warranty period is very short. The top model is a beauty that promises dual duty is topping out at 1190 MCA and 190 RC minutes. One battery for all needs. Easing fears of using a dual purpose battery for both starting and trolling Interstate promises replacement for up to 36 months. The warranty alone is worth the additional charge.
Odyssey Marine Batteries are designed for powerful dual purpose use. There are only variations of dual purpose that promise starting, deep cycle power. The Odyssey has not lead alloy, but pure lead plates. The pure lead plates allow for more plates to fit in the casing, providing two times the surface area. It is capable of providing 2200 bursts for starting and up to 400 charge-discharge cycles. Odyssey provides a 24-month replacement warranty.
VMAX Batteries promises their VMAX Tank series are tough enough for military applications. Whether gas or electric, whether you need starting power or sustaining power for electronic equipment on board, there is a solution for your needs. The biggest and best VMAX boasts of 170Ah with a 360 RC minute reserve capabilities for the power boat application. The bottom technology battery boasts of 390 MCA and 75 RC minutes. There is a 12-month warranty against defect or workmanship.
Battery Tenders Lithium Batteries marine applications are designed for the unique needs of your Personal Water Craft. Their best battery promises 480 CCA, with a replacement range of 26-35 Ah. With proper use and maintenance, it boasts an 18-month shelf life and 2000 deep cycles at 80% Depth of Discharge can be mounted in any direction for ease of installation. The Battery Tender Charging Products are the state of the art chargers built with Deltran’s patented Battery Tender BTP Microprocessor Technology. The easy connect convenience automatically maintains all the batteries in your boat. It is so simple to use, just connect it, and it begins its work saving your hundreds of dollars in replacements. Trusted by dealers, collectors, and fleet owners; you can certainly trust the ‘Tender’ with yours.
After looking at all of the marine batteries, their applications, care, and marine battery reviews it is important to note that the best marine battery(ies) for you really depends on the boat, its size, the electronic devices it must power along with the other applications and your budget. Remember one of the best determiners for a good battery is the warranty offered by the manufacturer. Have a great boating season!

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