12 Best Marine Batteries [Marine Battery Reviews]

You’ll need an excellent marine battery for your boat. It supplies power to the engine or trolling motor, including other onboard equipment. But finding the right marine battery for your boat can be a challenge. Which marine batteries are the best?

The following are our top 12 picks for the best marine battery:

  1. Optima Batteries BlueTop Starting and Deep Cycle Marine Battery – Click here to see it on Amazon – Our #1 Top Pick!
  2. Odyssey Trolling Thunder Marine Dual Purpose Battery – Click here to see it on Amazon
  3. Eastup Lithium Iron Phosphate (LiFePo4) Battery
  4. LiFePO4 12V 200Ah Lithium Iron Phosphate Battery Pack
  5. Banshee LiFeP04 Deep Cycle Battery 100Ah 12V
  6. Odyssey Heavy Duty Commercial Battery
  7. VMAX SLR125 AGM Sealed Deep Cycle 12V 125Ah Batteries
  8. XS Power D6500 12V 3,900 Amp AGM High Output Battery
  9. Optima 8037-127 D27F YellowTop Starting and Deep Cycle Battery
  10. Odyssey 34/78-PC1500DT LTV Battery
  11. Weize 12V 100AH Pure GEL Deep Cycle Rechargeable Battery
  12. VMAX MR107-85 12V 85AH AGM Deep Cycle Marine Battery

Read on to know more about the best marine batteries, including the features and specifications for each.

Also, check out our top pick, the Optima Batteries BlueTop Starting and Deep Cycle Marine Battery, on Amazon, to see its great reviews and price:

Click here to see it on Amazon.

12 Best Marine Batteries – Marine Battery Reviews

1. Optima Batteries BlueTop Starting and Deep Cycle Marine Battery

The Optima Batteries BlueTop Marine Battery comes in first on our list of the best marine batteries:

Click here to see it on Amazon.

More recharges and running time are offered by the OPTIMA BlueTop high-performance AGM battery than a conventional battery. It’s the ideal marine battery for boats that have a lot of electronics or trolling motors.

Aside from delivering great vibration resistance, the OPTIMA BlueTop’s rapid recharge and efficient power delivery time mean you’ll stop worrying about your battery. You’ll also have more time on the water.

This versatile marine battery is suitable for anyone who requires a powerful, reliable, and maintenance-free power supply.

  • Spillproof, mountable in virtually any position
  • Up to 3x more recharges than conventional marine batteries
  • Works as a marine boat battery or RV battery
  • Maintenance-free
  • More than 15 times the vibration resistance

SpiralCell Technology

Each OPTIMA battery contains a series of spiral-wound cells made up of two pure lead plates with a lead oxide coating. There’s a negative coated plate and a positive coated plate.

The spiral winding continuous lead plates is a precision-controlled and costly process – even more so than standard flat plate AGM batteries.

And to maintain the close tolerances needed for performance and quality, custom cell-winding machines are required. Humidity and critical tolerances, as well as automated processes, are all maintained and monitored.

2. Odyssey Trolling Thunder Marine Dual Purpose Battery

The Odyssey Trolling Thunder Marine Battery is next on our list of the best-rated marine batteries:

Click here to see it on Amazon.

The Thunder Marine Dual Purpose Battery from Odyssey Batteries boasts incredible deep cycling capability as well as massive starting power. An 80 percent discharge depth, up to 400 cycles, is possible.

The Thunder Marine battery is excellent for starting the motor, trolling, and many onboard electronic accessories and appliances found on boats, with twice the total power and three times the life of other marine batteries.

The Thunder Marine battery is excellent for starting the motor, trolling, and many onboard electronic accessories and appliances found on boats, with twice the total power and three times the life of other marine batteries. Owners generally had two options when replacing a boat battery: deep cycle or starting.

Because many boat owners require both – a marine battery that provides reliable starting power when they need it and can tolerate frequent and deep depths of discharge without considerable power loss – this often means a compromise.

However, no marine battery could provide both until now. The Thunder Battery is an innovative all-in-one battery with incredible deep cycling capacity and massive cranking power.

It is made up of 100% virgin lead plates for maximum surface area and recycling efficiency. It is designed with an AGM to prevent acid spillage.

It has tin-plated brass terminals with high conductivity and corrosion resistance, a high-integrity terminal seal, a sealed design that recycles gases internally, a self-regulating relief valve, durable flame retardant cell containers, and tough internal cell connections to avoid vibration damage.

Odyssey batteries have 15% greater plate surface area than spiral-wound batteries of comparable size. In addition, Odyssey batteries supply more power and have a 40 percent higher reserve capacity, avoiding dead space between cylinders.

  • Longer service life of 3-10 years
  • Cold Crank Amp (CCA)- 880
  • Limited 3- and 4-year full replacement (not pro-rata)
  • Longer cycle life
  • Saves time, money, and aggravation
  • Vibration-resistant design
  • Tolerant to extreme temperatures
  • Longer shelf life (can be stored on an open circuit without requiring a recharge for up to 12.00V or two years)
  • Maintenance-free (non-spillable battery; no need to add water; no escaping gasses, no acid spills; resealable venting system)
  • Highest recharge efficiency

3. Eastup Lithium Iron Phosphate (LiFePo4) Battery

Another of our favorite marine batteries is the Eastup Lithium Iron Phosphate (LiFePo4) Battery:

Click here to see it on Amazon.

What is a LiFePO4 battery, and how does it work? The lithium iron phosphate battery (LiFePO4), also known as the LFP battery (LFP stands for lithium ferrophosphate), is a lithium-ion rechargeable battery with LiFePO4 as the cathode material.

LiFePO4 (or LFP) batteries have a lower energy density than the more popular lithium cobalt oxide (LiCoO2) battery used in consumer electronics. But LFP batteries have a higher power density, longer lifetimes, and are intrinsically safer. LiFePO4 is widely used in marine and vehicle applications, as well as as a backup power source for RVs and homes.

  • This battery has a battery management system that disables the battery if the power drops below 10.5V. An SLA battery, for example, will die after 10 hours if you forget to switch off the lights, but LifePo4 batteries will automatically turn off the power when the voltage falls below roughly 10.5V. You can reactivate it by pressing the power button for two seconds. 
  • Long service life – Its cycle can last up to 2000x, which is 7-10 times longer than SLA (300-500x only for SLA batteries).
  • The LifePo4 Battery can attenuate up to 5% per year, while SLA can attenuate up to 40% per year. Additionally, the LifePo4 battery can also deep discharge to 100% DOD. Even the battery’s voltage drops to nearly zero volts.
  • The LiFePo4 battery is the world’s safest lithium battery. It will never catch fire or explode, even in the most extreme circumstances.

4. LiFePO4 12V 200Ah Lithium Iron Phosphate Battery Pack

The LiFePO4 12V – 200Ah Lithium Iron Phosphate Battery is next on our best marine battery review list:

Click here to see it on Amazon.

In conventional 12, 24, or 48 volt systems, the LiFePO4 is one of the best choices for lithium batteries. The voltage of this battery is fairly similar to that of an AGM. 

It will work well with easily available system components for boats, RVs, and off-grid power. It also offers the most cost-effective lithium iron phosphate technology on the market.

  • Weight: 26 kg
  • Dimensions: 278 x 180 x 280 mm
  • Sinopoly A grade lithium iron phosphate cells
  • 4S100A BMS
  • 1C max. charge rate, 3C max. discharge rate, and ≥2,000 times (cycle life)
  • Lightweight 
  • Easy to install

5. Banshee LiFeP04 Deep Cycle Battery 100Ah 12V

The Banshee LiFeP04 Battery 100Ah 12V is another best-rated marine battery on our list:

Click here to see it on Amazon.

The Banshee LifePo4 lithium-ion battery is unrivaled. There are a lot of things to say about this super-powered, lightweight battery.

The Banshee has you covered if you need power and are into fishing, sailing, boating, RV, or anything outdoors. This new lithium-ion battery is 1/3 the weight and has three times the longevity.

  • Weight: 24.2 lb 
  • Dimensions: L – 12.99 x W – 6.81 x H – 8.66 
  • Advanced LifePo4 technology provides the highest and lightest CCA, including the longest-lasting battery possible
  • Replaces Group 31 Marine, RV solar, and sailing battery applications
  • Dual purpose, 1200CCA, and deep cycle capabilities
  • Advanced capabilities (true marine dual post terminals, emergency start function, built-in voltage meter, BMS system, and patent pending)
  • Voltage: 12; Amp Hours: 100; Chemistry: lithium iron phosphate (LiFeP04); Cold-cranking amps: 1200; Group size: BCI: 31 
  • Uses only lithium-ion, LifePo4 charger
  • 3-year warranty 

6. Odyssey Heavy Duty Commercial Battery

Another excellent choice on our list of marine battery reviews is the Odyssey Heavy Duty Commercial Battery.

Click here to see it on Amazon.

For heavy-duty and commercial vehicles, ODYSSEY heavy-duty and commercial batteries (stud terminal) provide huge starting power, quick recovery, and exceptional longevity.

Commercial vehicles must now be able to power a variety of accessories both inside and outside the cab. They need a battery that can start any job, whether they’re on the road, at the farm, or on the job site.

The ODYSSEY battery is made of tough materials and has lead plates that are tightly packed. Its non-spillable AGM construction safeguards the battery from shock and vibration, which can quickly degrade other batteries.

This battery is best for the most demanding applications, including tractor-trailers, farming equipment, construction equipment, buses-RVs, box trucks-cargo vans, and emergency response.

  • Cold Crank Amp (CCA) – 1150
  • Warranty: 3- and 4-year full replacement warranty (not pro-rata)
  • Longer service life at 3-10 years
  • Saves time, money, and aggravation
  • Vibration resistance
  • 70% longer cycle life than usual deep cycle batteries; Up to 400 cycles at 80 percentage depth of discharge; High-stable voltage for extended periods
  • Mounting flexibility with a non-spillable design
  • Faster recharge
  • Not for sale in Catalina Island

7. VMAX SLR125 AGM Sealed Deep Cycle 12V 125Ah Batteries

VMAX SLR125 AGM 12V 125Ah Batteries are another great addition to our best all-around marine batteries list.

Click here to see it on Amazon.

VMAXTANKS is a company that specializes in producing high-quality AGM deep cycle batteries. In float mode, these batteries deliver excellent performance and have a service life of 8 to 10 years. A battery calculator is also available to help you figure out how many batteries are required for your particular AC or DC power needs.

VMAX batteries are also labeled with the VMAX logo and have a VMAX hot stamp on the top. If purchased from a VMAX certified Amazon seller, it comes with a 12-month warranty.

  • Has a float service life span of 8-10 years
  • 2 VMAX SLR125 12V 125Ah AGM deep-cycle battery
  • Recommends the VMAX BC1215 12V 15Amp 7-stage charger or maintainer
  • Designed for 99% recombination capabilities without dangerous gas/fumes
  • Battery cables are made in the USA

8. XS Power D6500 12V 3,900 Amp AGM High Output Battery

The XS Power D6500 12V 3,900 Amp Battery is the next best marine battery on our list.

Click here to see it on Amazon.

XS Power has a battery for every type of racing. It includes a wide range of batteries, ranging from 12-pound 12V batteries to 14V street batteries to 30-pound 16V batteries. XS Power has the racing batteries you need.

It has the best energy density of any AGM battery and is now the preferred battery for competition car audio.

  • 12V battery with CA: 1070; Ah: 75
  • AGM (suspended electrolyte in fiberglass)
  • Sealed, spill-proof, valve regulated, and vibration-resistant
  • Mount in almost any position
  • Ultra-low internal resistance

9. Optima 8037-127 D27F YellowTop Starting and Deep Cycle Battery

The Optima 8037-127 D27F YellowTop Battery is next on our list of the best marine batteries.

Click here to see it on Amazon.

The Optima D27F YELLOWTOP is a dual-purpose (deep-cycle and starting) battery with Spiralcell Technology AGM for ultra-high performance.

These batteries offer 3x the cycling capability and ultimate cranking power of typical batteries, allowing them to outperform traditional batteries.

It’s ideal for supplying power to heavy electrical loads such as winches, stereo systems, inverters, and other high-demand vehicle accessories and electronics.

  • Completely spill-proof and mountable in nearly any position
  • Deep-cycle and cranking power (2x longer life)
  • More than 15x the vibration resistance
  • Maintenance-free with faster recharging
  • Optimal starting power; 300+ discharge/recharge cycles

10. Odyssey 34/78-PC1500DT LTV Battery

The Odyssey 34/78-PC1500DT LTV Battery is next on our list of the best marine batteries.

Click here to see it on Amazon.

Vehicles are now equipped with more electronics than ever before, whether for emergency or everyday use. The design of the ODYSSEY battery keeps up with these advancements.

This automotive and LTV battery from ODYSSEY has a lot of starting power, quick recovery, and incredible deep cycling capability. This battery is great for various vehicles, including antique and classic cars, high-performance automobiles, and 4×4 off-road vehicles.

  • Cold Crank Amp – 850
  • Warranty: limited 3- and 4-year full replacement (not pro-rata)
  • 3-10 years of service life
  • Longer cycle life: 70% longer cycle life compared to usual deep cycle batteries 
  • Saves consumer’s time, money, and aggravation
  • High stable voltage for extended periods
  • With mounting flexibility, vibration resistance, and non-spillable design
  • Faster recharge
  • Extreme temperature tolerant
  • Not for sale in Catalina Island

11. Weize 12V 100AH Pure GEL Deep Cycle Rechargeable Battery

This battery from Weize is a UL- and CE-certified 12V 100AH pure GEL deep cycle battery.

Click here to see it on Amazon.

Due to its gelled electrolyte technology, it offers outstanding recovery after deep discharge under frequent cyclic discharge use.

This battery also features a patent-designed PVC separator design that ensures uniform gel electrolyte distribution throughout the inner battery. It also guarantees that all battery parts are in the best possible balance.

Its other features include an explosion-proof triplex sealed construction with high recovery efficiency.

Solar power systems, consumer electronics, electric vehicles, golf carts, hunting, lawn and garden equipment, medical mobility, access control devices, photography, solar, toys and hobbies, portable tools, emergency lights, security, and more, can all benefit from Weize GEL batteries.

  • 12.8(L) x 6.8(W) x 8.5(H) inch
  • 12V 100AH gel electrolyte technology deep-cycle sealed battery
  • Heavy-duty lead-calcium grids that ensure mild corrosion
  • Service life of 15 years’ standby use 
  • Low self-discharge
  • Used for a variety of applications
  • Not for motorcycle ATV engine starts
  • 1-year warranty

12. VMAX MR107-85 12V 85AH AGM Deep Cycle Marine Battery

VMAX MR107-85 AGM 12V 85AH marine batteries are strong batteries designed for tough applications.

Click here to see it on Amazon.

The plates of this battery have unique chemical and physical structures. This battery’s special treatment and manufacturing method enable it to have greater reliability and strength, as well as better performance than comparable Pb-Ca plates used in similar products.

  • The MR107 powers a 55-pound motor continuously for 7.3 hours at low speed, 4.4 hours at medium speed, and 1.5 hours at maximum speed
  • 10.2″ (L) x 6.6″ (W) x 8.5″ (H) (height includes terminals) 
  • 12V 85Ah; Reserve Capacity: 160 min 
  • Weight: 55 lbs.; 8 mm terminals
  • Maintenance-free operation
  • Rechargeable sealed battery (resists vibration and shock)
  • High-performance AGM technology
  • 1-year replacement (with a 30-day satisfaction guarantee)

Conclusion – Best Marine Battery Review

So to recap, what is the best marine battery? The following are our top 12 picks for the best marine batteries:

  1. Optima Batteries BlueTop Starting and Deep Cycle Marine Battery – Click here to see it on Amazon – Our #1 Top Pick!
  2. Odyssey Trolling Thunder Marine Dual Purpose Battery – Click here to see it on Amazon
  3. Eastup Lithium Iron Phosphate (LiFePo4) Battery
  4. LiFePO4 12V 200Ah Lithium Iron Phosphate Battery Pack
  5. Banshee LiFeP04 Deep Cycle Battery 100Ah 12V
  6. Odyssey Heavy Duty Commercial Battery
  7. VMAX SLR125 AGM Sealed Deep Cycle 12V 125Ah Batteries
  8. XS Power D6500 12V 3,900 Amp AGM High Output Battery
  9. Optima 8037-127 D27F YellowTop Starting and Deep Cycle Battery
  10. Odyssey 34/78-PC1500DT LTV Battery
  11. Weize 12V 100AH Pure GEL Deep Cycle Rechargeable Battery
  12. VMAX MR107-85 12V 85AH AGM Deep Cycle Marine Battery