Best Deep Cycle Marine Battery to Power Any Ship!

Boat at the middle of the sea

​When it comes to powering your ship, you want to make sure your battery has what it takes, so you need the best deep cycle marine battery. Whether you have a giant ship or a small seacraft, it’s essential that you properly care for it by powering it with the best battery on the available.

Product FAQ

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Are All Marine Batteries Deep Cycle Batteries?

What Is the Difference between Starting Batteries and Marine Batteries?

What Are True Deep Cycle Batteries?

​How We Reviewed the Best Deep Cycle Marine Battery

When it comes to finding the best deep cycle marine battery on the market, there are plenty of great options. The right one for you will depend largely on the features you and your ship need in a battery. To help you make an informed decision, we’ve gathered some of the highest ranking options and compared them on basic characteristics.

​Overall Price Range

You can expect to spend anywhere from around $150 to around $450 on the best deep cycle marine battery for you.

​What We Reviewed

  • ​ Optima Batteries 8016-103 D34M BlueTop Marine Battery
  • ​ Odyssey 31M-PC2150ST-M Thunder Marine Battery
  • ​ Universal Power Group AGM Deep Cycle VRLA Battery
  • ​ VMAXTANKS VMAX V35-857 Marine Battery
  • ​ Interstate Batteries Sealed Lead Acid Deep Cycle Battery
  • ​ Bass Pro Shops XPS Power Series Marine Battery
  • ​ VMAX MR127 AGM Deep Cycle Battery
  • ​ Optima Batteries 8027-127 D27M BlueTop Marine Battery
  • ​ Odyssey 34M-PC1500ST Thunder Marine Battery
  • ​ VMAX XTR31-135 AGM Marine Battery
Optima Batteries 8016-103 D34M BlueTop Starting and Deep Cycle Marine Battery
  • 12-Volt, 750 Cold Cranking Amps, Size: 10 inches x 6 7/8 inches x 7 13/16 inches tall, Weight: 43.5 pounds, Dual SAE & 5/16 inches Stainless Steel Stud Posts. 55 Ah C20 capacity
  • Optimal starting power even in bad weather
  • Mountable in virtually any position. Works well as a boat battery or RV battery
  • Fifteen times more resistant to vibration for durability
  • Reserve capacity of 120 minutes for constant performance

Features

This powerful option is perhaps the best deep cycle marine battery. It runs on 12 volts and offers 750 cold cranking amps. The battery weighs 43.5 pounds and has a Dual SAE and 5/16 inch stainless steel stud posts. It offers optimal starting power even if the worst weather the seas can throw at you. It’s mountable in virtually any position and is covered in a shock resistant hard external casing for optimal protection. The battery can be used in an RV as easily as in a ship and it has a reserve capacity of 120 minutes. It measures 10 inches by 6 7/8 inches by 7 13/16 inches.

Pros

  • 12 volts
  • 750 cold cranking amps
  • Weighs 43.5 pounds
  • Dual SAE
  • 5/16 inch stainless steel stud posts
  • Gives you optimal starting power in any weather
  • Mountable in any position
  • Shock resistant casing
  • 120-minute reserve capacity

Cons

  • Some customers have reported battery failure
  • Some individuals have reported that the battery has difficulty holding a charge

​Warranty

​The manufacturer of this battery offers a one-year warranty.

Odyssey 31M-PC2150ST-M TROLLING Thunder Marine Dual Purpose Battery
  • Cold Crank Amp (CCA)- 1150. Better warranty: Limited 3 and 4 year full replacement warranty: not pro rata; Longer service life: 3-10 years of service life: save consumers time, money and aggravation
  • Longer cycle life: 70 percentage longer cycle life compared to conventional deep cycle batteries, up to 400 cycles at 80 percentage depth of discharge- high stable voltage for longer periods of time
  • Recharge: Highest recharge efficiency of any sealed lead battery on the market, capable of 100 percentage recharge in 4-6 hours; Mounting flexibility: Non-spillable design
  • Vibration resistance-design protects against high impact shock and mechanical vibration; Extreme temperature tolerant- Operating temperatures from -40 degree Celsius (-40 degree Fahrenheit) to 80 degree Celsius (176 degree Fahrenheit)
  • This item is not for sale in Catalina Island

Features

​This is perhaps the best deep cycle marine battery because it packs in a whopping 1150 cold cranking amps. Plus, this new design is back with a longer service life of an expected 3 to 10 years, saving the consumer time, money, and a whole lot of frustration. Compared to other deep cycle batteries, this one boasts a 70% longer life cycle. This option for the best deep cycle marine battery offers up to 400 cycles at 80% discharge depth, giving you a high stable voltage over a long period of time.

This battery also has the highest recharge efficiency of any sealed lead battery available for purchase; it’s capable of a full recharge in only 4 to 6 hours. The non-spillable design of the battery gives you flexibility when mounting it. Plus, the vibration resistant hard external cover gives the battery the extra protection it needs to power you through choppy waters.

Pros

  • 1150 cold cranking amps
  • Longer service life expectancy of 3 to 10 years
  • 70% longer life cycle than other deep cycle batteries on the market
  • Offers up to 400 cycles at 80% discharge depth
  • Highest recharge efficiency
  • Full recharge in 4 to 6 hours
  • Non-spillable design for mounting flexibility

Cons

  • Customers have reported that the terminal positions are different than in the older design

​Warranty

​This manufacturer offers both limited 3 and 4-year full replacement warranty

Universal Power Group 12V 100Ah Solar Wind AGM SLA DEEP Cycle VRLA Battery 12V 24V 48V
  • UPG #45978 UB121000 12V 100Ah
  • Dimensions: 12.17 inches x 6.61 inches x 9.16 inches. Weight: 63.93 Lbs
  • SLA/AGM maintenance free, spill proof battery
  • Rechargeable battery that can be mounted in any position, resists shocks and vibration
  • 1 Year Warranty

Features

​This option is perhaps the best deep cycle marine battery because it comes at such a low price point. It runs on 12 volts and 100Ah and weighs 63.93 pounds. It’s maintenance free and has a spill-proof battery, giving you flexibility when it comes to mounting the battery. It is rechargeable and has a strong external shell that helps to protect the battery from the shocks and vibrations of being out on the water.

Pros

  • Maintenance free
  • Spill-proof battery for mounting flexibility
  • Rechargeable
  • Strong shock-resistant shell
  • Extremely affordable option
  • 12 volts
  • 100 Ah

Cons

  • Some customers have reported mechanical failure
  • Some customers have said that the manufacturer’s customer service is difficult to work with
  • Some individuals have reported a low battery life span

​Warranty

​ The manufacturer of this battery offers a one-year warranty.

VMAXTANKS VMAX V35-857 12 Volt 35AH AGM Battery Marine Deep Cycle HI Performance Battery Ideal for Boats and 18-35lb minn kota, minnkota, Cobra, sevylor and Other trolling Motor (12V 35AH, Group U1)
  • Dimensions: L=7.7" W=5" H=6.1"
  • Also avilable as a battery kit: http://www.amazon.com/gp/product/B00HOUCLWE
  • Heavy Duty Grids: VMAX heavy duty lead tin alloys provide an extra margin of performance and service life in either float or cyclic applications, even after repeated over discharges.
  • Maintenance Free Operation: There is no need to check specific gravity of the electrolyte or add water to VMAX tanks during float service life. In fact, there is no provision for this type of maintenance.
  • RECOMMENDED CHARGER: VMAX BC1204 12V 3.3Amp

Features

​This battery option is definitely the best deep cycle marine battery for somebody. It uses heavy-duty lead-tin alloys that give your performance an extra edge and a longer service life in float or cyclic applications. This battery has the ability to be discharged over and over and still regain its strength. It uses a maintenance-free operation that means the customer doesn’t have to waste time checking the specific gravity of the electrolytes.

Pros

  • Heavy duty lead-tin alloys
  • Can use float or cyclic applications
  • Can deep cycle repeatedly without harm to the battery
  • Maintenance free operation

Cons

  • Some customers have reported that the battery can’t hold a charge
  • Customers have reported mechanical failure
  • Some people have complained about the screws that come with the battery not being stainless steel

​Warranty

​The manufacturer of this battery offers a one-year limited warranty

Interstate Batteries DCM0035 Deep Cycle Battery
  • Interstate Batteries Deep-Cycle mobility product, our DCM0035 Replacement battery fits many products such as Jazzy Chairs, Leisure lift, Pride Mobility Scooters, Ranger All Season, Kubota mowers, Invacare battery, Hoveround MPV5, MPV4, MPV3, MPV2, MPV1, and other Hoveround products batteries, Bruno wheelchairs. This product is not a replacement for golf cart batteries
  • Rechargeable, Maintenance-free and spill proof because of the AGM & VRLA (valve regulated) technology that eliminates spills and overpressure.
  • Professional-grade quality product developed specifically for wheelchairs and scooters. Long life for deep discharge usage. The best performer for heavy demand mobility, wheelchairs
  • 12volt 35 ah sealed lead acid battery. Dimensions: 7. 68 inches (L) x 5. 16 inches (W) x 6. 42 inches (H) Terminal: INSERT W/BOLT REPLACES FLAG TY
  • Quality product - our rigorous testing 7 point quality protocol - ensures we exceed industry standards and back our products with an unmatched 1 year no-hassle .

Features

​This sealed lead acid battery is one of the best deep cycle marine battery options out there because of its low price point and durability. It runs on 12 volts and offers 100 Ah. The non-spillable design of the battery makes it easy to be mounted in any position.

Pros

  • Very low price point
  • Runs on 12 volts and 100 Ah
  • Non-spillable design and easy mounting

Cons

  • Some customers have complained about customer service
  • Some individuals have reported that the battery they receive is not the same as the battery they ordered
  • Individuals have reported mechanical failure

​Warranty

​The manufacturer of this battery offers a limited one-year warranty.

Battery 12 Volt 35AH Marine Deep Cycle HI Performance Battery Ideal for Boats and 18-35lb Minn Kota, Minnkota, Cobra, Sevylor and Other Trolling Motor (12V 35AH, Group U1) Beiter DC Power
  • Dimensions: L=7.7" W=5" H=6.1"
  • Heavy Duty Grids: Power King heavy duty lead tin alloys provide an extra margin of performance and service life in either float or cyclic applications, even after repeated over discharges.
  • Maintenance Free Operation: There is no need to check specific gravity of the electrolyte or add water to VMAX tanks during float service life. In fact, there is no provision for this type of maintenance.

Features

​This powerful option is one of the best deep cycle marine batteries for any ship. It has a rugged vibration-resistant AGM construction and gives a full 550 cold cranking amps to roar your ship’s motor to life. It gives you long-lasting deep-cycle performance time and time again, as well as quick recharges. The dual-terminal design gives you a convenient and easy installation. It can function both as a starting and deep-cycle battery.

Pros

  • Dual-terminal design for convenient installation
  • Functions as both a starting and deep-cycle battery
  • 550 cold cranking amps
  • Quick recharge capability
  • Vibration-resistant AGM construction

Cons

  • Some customers have said that the battery takes an extended period to fully charge
  • Some customers have reported battery failure

​Warranty

​The manufacturer of this battery offers a one-year free replacement and 36-month pro-rated marine battery warranty.

VMAX MR127 12 Volt 100Ah AGM Deep Cycle Maintenance Free Battery Compatible with Boats and 40-100lb, minnkota, Cobra, sevylor and Other trolling Motor (Group 27 Marine Deep Cycle AGM Battery)
  • 12 Volt 100Ah Group 27 Deep Cycle Heavy Duty AGM Marine Deep Cycle Maintenence Free Battery (Includes carrying handles)
  • Electrolyte Suspension system VMAX tanks utilize an electrolyte suspension system consisting AGM (Absorbed Glass Matt) of a high porosity that totally absorb and contain the electrolyte. No silica gels or any other contaminants are used
  • Heavy Duty Grids: VMAX heavy duty lead tin alloys provide an extra margin of performance and service life in either float or cyclic applications, even after repeated over discharges.
  • Fits any Group 27 Battery Box, fits the MinnKota Trolling Motor Power Center; Bargainshore offers FREE Signature Confirmation on most bulky orders in excess of $150.00. You can waive the Signature Confirmation by sending us a message with your request when placing your order. Orders of 5 or more batteries shipped on a pallet must be signed for when delivered. A contact number is required to schedule pallet delivery.
  • Battery Cables MADE IN USA: https://www.amazon.com/dp/B07NLJBT65?ref=myi_title_dp

Features

​This is perhaps the best deep cycle marine battery because of the premier construction. This VMAX battery uses an electrolyte suspension system that utilizes Absorbed Glass Matt (AGM) with a high porosity to contain the electrolyte. No silica gels or contaminants are used! This battery uses 12 volts and 100 Ah. It uses heavy duty lead tin alloys that give your seacraft an edge. It can be used in both float or cyclic applications and continues to work well discharge after discharge. It fits any Group 27 battery box.

Pros

  • Fits in any Group 27 battery box
  • Electrolyte suspension system
  • AGM with high porosity contains electrolyte
  • No silica gels or other contaminants
  • 12 volts and 100 Ah
  • Can be used on float or cyclic applications

Cons

  • This battery is very heavy
  • Some customers have complained about a short lifespan

​Warranty

​The manufacturer of this deep cycle battery offers a limited one-year warranty.

Optima Batteries 8027-127 D27M BlueTop Starting and Deep Cycle Marine Battery
  • Pure lead spiralcell design allows for lead to be used in its purest form.C20 Capacity:66 Ah
  • Spiralcell technology for superior vibration resistance and extended life
  • Solid cast cell connections for increased durability and maximum plate height
  • Tightly compressed cells for added vibration resistance. Reserve Capacity at 25 Amps: 140 Minutes
  • This item is not for sale in Catalina Island

Features

​This is perhaps the best deep cycle marine battery because it uses a pure lead spiral cell design that allows the battery to utilize lead in its purest form as well as provides extra protection against vibration. It has a C20 capacity and 66 Ah. The battery uses solid cast cell connections that lend themselves to increased durability and maximum plate height. Additionally, the tightly compressed cells give you an added vibration resistance. This battery has a reserve capacity of 140 minutes and 25 amps and 800 cold cranking amps.

Pros

  • Spiral cell design that uses the purest form of lead and provides extra vibration protection
  • C20 capacity and 66 Ah
  • 140 minute reserve capacity and 25 amps
  • 800 cold cranking amps
  • Solid cast cell connections give increased durability and maximum plate height
  • Tightly compressed cells give extra protection from vibration

Cons

  • Several customers have complained about poor customer service
  • Customers have reported mechanical failure

​Warranty

​The manufacturer of this battery offers a limited two-year warranty.

Odyssey 34M-PC1500ST TROLLING Thunder Marine Dual Purpose Battery
  • Cold Crank Amp (CCA)- 880; Better : Limited 3 and 4 year full replacement - not pro rata; Longer service life: 3-10 years of service life; save consumers time, money and aggravation; Longer cycle life
  • Longer shelf life: Can be stored on open circuit without the need for recharging up to 2 years or 12. 00V, whichever occurs first; Recharge: Highest recharge efficiency of any sealed lead battery on the market
  • Vibration resistance- design protects against high impact shock and mechanical vibration; Extreme temperature tolerant- Operating temperatures from -40degree Celsius (-40 degree Fahrenheit) to 80 degree Celsius (176 degree Fahrenheit)
  • Totally maintenance free: No need to add water, ever Improved safety- US Department of Transportation classified as a non-spill able battery; No acid spills, no escaping gases; Totally dry AGM design with Resealable venting system
  • This item is not for sale in Catalina Island

Features

​This deep cycle battery comes with a new and improved warranty as well as an improved life expectancy of 3 to 10 years. It offers a strong 800 cold cranking amps and can be stored on open circuit for up to 2 years without needing to recharge. This battery boasts the highest recharge efficiency of any of the best deep cycle marine battery options on the market. This design is totally maintenance free, with no need for the consumer to add water or check the electrolyte levels. The design is also vibration resistant and protects the battery from the high impact shock and vibration of being out on a ship. The totally dry AGM design has a resealable venting system for maximum ease.

Pros

  • Life expectancy of 3 to 10 years
  • 800 cold cranking amps
  • Shelf life of 2 years without recharge
  • High recharge efficiency
  • Maintenance free design
  • Vibration resistant
  • Totally dry AGM design
  • Resealable venting system

Cons

  • Some customers have reported battery failure
  • Some customers have complained about a shorter than advertised battery life

​Warranty

​The manufacturer offers a two-year limited warranty.

VMAX XTR31-135 AGM Marine Battery 12V 135Ah GRP 31 Sealed Deep Cycle High Performance
  • 12 Volt 135Ah AGM Battery; Dimensions: 13"Lx 6.8"Wx8.7"H; Includes 8mm terminal posts; Reserve Capacity of 265 minutes
  • Maintenance Free Operation: There is no need to check specific gravity of the electrolyte or add water to VMAXTANKS. Can be mounted in any position
  • Rechargeable Sealed battery resists shocks and vibration. High performance AGM technology for long lasting reliable power
  • Warranty: 1 Year replacement; 30 day satisfaction guarantee
  • TOUGH BATTERIES FOR TOUGH APPLICATIONS.

Features

​This durable option is one of the best deep cycle marine battery options available on the market. It runs on 12 volts and 135 Ah and has a massive reserve capacity of 265 minutes. It uses 8mm terminal posts and has a maintenance free operation. It can be mounted in any position and is sealed to resist shocks and vibrations. The rechargeable battery uses high performance AGM technology that improve the life expectancy and the performance.

Pros

  • Very durable shock-resistant outer protection
  • 12 volts and 135 Ah
  • Reserve capacity of 265 minutes
  • 8mm terminal posts
  • Maintenance free operation
  • Mountable in any position
  • Sealed to resist shocks
  • Heigh performance AGM technology

Cons

  • Some customers have complained about the manufacturer’s customer support services

​Warranty

​This manufacturer offers a one-year replacement guarantee.

​The Verdict

boat on the sea

Photo by ZHANG FENGSHENG on Unsplash

When it comes to finding the best deep cycle marine battery for your ship, two of the most important factors to consider are price and reserve capacity. If you’re looking for an affordable option for the best deep cycle marine battery, try the Interstate Batteries Sealed Lead Acid Deep Cycle Battery, the VMAXTANKS VMAX V35-857 Marine Battery, or the Universal Power Group AGM Deep Cycle VRLA Battery.


If you’re looking for a more middle-of-the-line model, try the VMAX MR127 AGM Deep Cycle Battery, the ​Battery 12 Volt 35AH Marine Deep Cycle HI Performance Battery, or the Optima Batteries 8016-103 D34M BlueTop Marine Battery. Or, if money is no object, try the VMAX XTR31-135 AGM Marine Battery, the Odyssey 34M-PC1500ST Thunder Marine Battery, Optima Batteries 8027-127 D27M BlueTop Marine Battery, or the Odyssey 31M-PC2150ST-M Thunder Marine Battery.

If you’re looking for a deep cycle marine battery that offers a large reserve capacity, there are several options that stand out. The VMAX XTR31-135 AGM Marine Battery offers a reserve capacity of 265 minutes, and the  Optima Batteries 8027-127 D27M BlueTop Marine Battery  offers 140 minutes of reserve capacity. Lastly, the Optima Batteries 8016-103 D34M BlueTop Marine Battery offers 120 minutes of reserve capacity.

And of course, there are some batteries that stand out for other reasons. The Odyssey 34M-PC1500ST Thunder Marine Battery can sit on the shelf for up to 2 years without needing a recharge to work efficiently; it also has a resealable venting system for maximum ease. The Optima Batteries 8027-127 D27M BlueTop Marine Battery uses a pure lead spiral cell design that utilizes the purest form of lead as well as solid cast cell connections for increased durability. The VMAX MR127 AGM Deep Cycle Battery works without the use of any silica gels or other contaminants.

The best deep cycle marine battery for you and your ship is out there, you just have to choose it.

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