12 Best Marine Batteries [Marine Battery Reviews]

An excellent marine battery is essential for your boat. It powers the engine or trolling motor and powers other appliances onboard. The challenge is finding the right marine battery for your boat. What are the best marine batteries?

Our 12 picks for the best marine battery are as follows:

  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. VMAX SLR125 AGM Sealed Deep Cycle 12V 125Ah Batteries
  7. Odyssey Heavy Duty Commercial Battery
  8. XS Power D6500 12V 3,900 Amp AGM High Output Battery
  9. Odyssey 34/78-PC1500DT LTV Battery
  10. Optima 8037-127 D27F YellowTop Starting and Deep Cycle Battery
  11. VMAX MR107-85 12V 85AH AGM Deep Cycle Marine Battery
  12. Weize 12V 100AH Pure GEL Deep Cycle Rechargeable Battery

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

Also, take a look at our top choice, the Optima Batteries BlueTop Starting and Deep Cycle Marine Battery, on Amazon, to see its price and great reviews:

Click here to see it on Amazon.

12 Best Marine Batteries – Marine Battery Reviews

1. Optima Batteries BlueTop Starting and Deep Cycle Marine Battery

First on our list of the best marine batteries is the Optima Batteries BlueTop Starting and Deep Cycle Marine Battery.

Click here to see it on Amazon.

An OPTIMA BlueTop high-performance AGM battery means more recharges and exceptional running time – more than you would get out of a conventional battery. It’s the perfect marine battery for your boat with extensive electronic systems or trolling motors. 

On top of providing excellent vibration resistance, the OPTIMA BlueTop faster recharge and efficient power delivery time mean you’ll spend little time worrying about your battery.

This means more time out on the water. This flexible marine battery is ideal for anyone who needs a strong-cranking, sure-starting, maintenance-free power source.

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

SpiralCell Technology

Inside every OPTIMA battery is a series of individual spiral-wound cells comprising two pure lead plates coated in a lead oxide coating. One coated plate is negative, and the other is positive.

The unique process of spiral winding continuous lead plates is precision-controlled and expensive – more so than traditional flat plate AGM batteries.

Custom cell-winding machines are required to maintain the close tolerances required to maintain performance and quality. Critical tolerances, humidity, and automated processes are maintained and monitored.

2. Odyssey Trolling Thunder Marine Dual Purpose Battery

Next on our list of the best-rated marine batteries is the Odyssey Trolling Thunder Marine Dual Purpose Battery.

Click here to see it on Amazon.

Odyssey Batteries Thunder Marine Dual Purpose Battery has both amazing deep cycling capability and massive starting power. Up to 400 cycles at 80% discharge depth.

With double the overall power and 3x the life of other marine batteries, the Thunder Marine battery is ideal for starting the motor, trolling, and the many onboard electronic accessories and appliances common in boats. 

When it comes to replacing a boat battery, owners have traditionally had two choices, deep cycle or starting.

Often, this means a compromise because many boat owners want both – a marine battery that delivers reliable starting power when they need it and withstands frequent and deep depths of discharge without any significant power loss.

But, no single battery could provide both until now. The amazing deep cycling capacity of the Thunder Battery, along with massive cranking power, is an all-in-one revolutionary battery.

It consists of pure virgin lead plates for maximum surface area and optimized recycling. It has an AGM design that eliminates acid spills.

It has high conductivity corrosion-resistant tin-plated brass terminals, high integrity terminal seal, a sealed design resulting in gases recycled internally, a self-regulating relief valve, tough flame retardant cell containers, and robust internal cell connections to prevent vibration damage.

Compared to equal-size spiral-wound batteries, Odyssey batteries has 15 percent more plate surface area. Avoiding the dead space between cylinders means that Odyssey batteries deliver more power and 40 percent more reserve capacity.

  • Cold Crank Amp (CCA)- 880; Limited 3 and 4-year full replacement (not pro-rata)
  • Longer service life of 3-10 years 
  • Saves consumer’s time, money and aggravation
  • Longer cycle life
  • Vibration resistant design protects the battery against high-impact shock and mechanical vibration
  • Extreme temperature tolerant
  • Long shelf life: This marine battery can be stored on an open circuit without requiring a recharge for up to 12.00V or two years.
  • Highest recharge efficiency of any other sealed lead battery on the market
  • Maintenance-free: Classified as a non-spillable battery; No need to add water; No escaping gasses, no acid spills; Resealable venting system.

3. Eastup Lithium Iron Phosphate (LiFePo4) Battery

The Eastup Lithium Iron Phosphate (LiFePo4) Battery is another one of our favorite marine batteries.

Click here to see it on Amazon.

What is LiFePO4 Battery? The reliable lithium iron phosphate battery (LiFePO4), also called LFP battery – LFP stands for ‘lithium ferrophosphate,’ is a type of lithium-ion rechargeable battery that uses LiFePO4 as a cathode material.

LiFePO4 (or LFP) batteries have somewhat lower energy density than the more common lithium cobalt oxide (LiCoO2) battery design found in consumer electronics; however, LFP batteries offer better power density, longer lifetimes, and are inherently safer. LiFePO4 is common for marine and vehicle use, as well as backup power for RVs and homes.

  • This battery included a battery management system, which deactivates the battery if power is drained below 10.5V. For example, if you forget to turn off the lights, an SLA battery will die after 10 hours, but the LifePo4 batteries will automatically shut off the power when the voltage is lower than about 10.5V. You can press the power button for two seconds to activate it again.
  • Long service life. Its cycle can reach as long as 2000x, which is 7-10 times of SLA (300-500 times only for SLA batteries).
  • The attenuation rate of the LifePo4 Battery is up to 5% per year, and SLA is up to 40% per year; the LifePo4 battery can also deep discharge till 100% DOD. Even the voltage of the battery goes down to nearly 0 volts.
  • LiFePo4 battery is the safest lithium battery in the world. It will never catch fire or bomb under the worst conditions.

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

Next on our list of the best marine battery reviews is the LiFePO4 12V 200Ah Lithium Iron Phosphate Battery Pack.

Click here to see it on Amazon.

The LiFePO4 (lithium iron phosphate) is one of the best choices for lithium batteries in standard 12, 24, or 48 volt systems.

This type of battery has a voltage very similar to an AGM. It will work great with readily available system components for RVs, boats, or off-grid power systems. It also has high-quality lithium iron phosphate technology with the fairest price on the market.

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

5. Banshee LiFeP04 Deep Cycle Battery 100Ah 12V

Another one of the best-rated marine batteries is the Banshee LiFeP04 Deep Cycle Battery 100Ah 12V.

Click here to see it on Amazon.

There’s nothing like the Banshee LifePo4 lithium-ion battery. There are lots of things about this lightweight super-powered battery to describe.

If you need power and you’re into sailing, fishing, boating, RV, or anything outdoors, the Banshee has you covered. This new super lightweight lithium-ion battery is 1/3 the weight and has 3xs the life.

  • Advanced LifePo4 technology provides the lightest and highest 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 
  • Dimensions: L – 12.99 x W – 6.81 x H – 8.66 
  • Weight: 24.2 lb 
  • Uses only lithium-ion, LifePo4 charger
  • 3-year warranty 

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

The VMAX SLR125 AGM Sealed Deep Cycle 12V 125Ah Batteries are another excellent addition to our list of best all-around marine batteries.

Click here to see it on Amazon.

VMAXTANKS specializes in the manufacturing of high-quality AGM deep cycle batteries. These batteries offer top-quality performance with an 8 to 10 years life span in float mode. A battery calculator is also available to calculate the number of batteries needed for your specific AC or DC power requirements.

VMAX batteries also come with VMAX labels and a VMAX hot stamp on top of the battery. It has a warranty of 12 months if purchased through a VMAX authorized Amazon seller.

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

7. Odyssey Heavy Duty Commercial Battery

The Odyssey Heavy Duty Commercial Battery is another top choice on our list of marine battery reviews.

Click here to see it on Amazon.

ODYSSEY heavy-duty and commercial batteries (stud terminal) deliver massive starting power, swift recovery, and extreme durability for heavy-duty and commercial vehicles.

Today, commercial vehicles have to power a range of accessories, both inside and out of the cab. Whether on the road, farm, or job site, they need a battery with the power to start any job.

The ODYSSEY battery features rugged construction and tightly packed with lead plates. Its non-spillable AGM design protects against shock and vibration, which can quickly destroy other batteries.

This battery is ideal for the toughest jobs, mainly from tractor-trailers, construction equipment, farming equipment, buses-RVs, box trucks-cargo vans, to emergency response.

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

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

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

Click here to see it on Amazon.

XS Power provides batteries for each form of racing. It has a wide selection, from 12-pound 12V batteries to 14V batteries for the street to 30-pound 16V batteries. XS Power has the batteries you need for racing.

It uses the highest energy density known in AGM batteries and now the battery of choice for competition car audio.

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

9. Odyssey 34/78-PC1500DT LTV Battery

Next on our list for the best marine batteries is the Odyssey 34/78-PC1500DT LTV Battery.

Click here to see it on Amazon.

Whether for emergency or daily use, vehicles are loaded with more electronics than before. And the ODYSSEY battery’s design keeps up with these changes.

ODYSSEY’s automotive and LTV battery provides massive starting power, rapid recovery, and amazing deep cycling capability. This battery is excellent for a range of performance from everyday vehicles, including classic and antique cars, high-performance cars, and 4×4 off-road.

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

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

Next on our list for the best marine batteries is the Optima 8037-127 D27F YellowTop Starting and Deep Cycle Battery.

Click here to see it on Amazon.

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

These batteries have three times the cycling capability with ultimate cranking power for your car or truck to outperform traditional batteries.

It is perfect for powering heavy electrical loads, including winches, audio systems, inverters, and other demanding vehicle accessories and electronics.

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

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

VMAX MR107-85 12V 85AH AGM Deep Cycle Marine Batteries are tough batteries made for tough applications.

Click here to see it on Amazon.

This battery has unique chemical and physical structures of its plates. The special treatment and manufacturing process makes this battery hold exceptional reliability and strength with superior performance than those of other Pb-Ca plates used in similar-looking products.

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

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

Weize 12V 100AH Pure GEL Deep Cycle Rechargeable Battery is a 12V 100AH pure GEL deep cycle battery with UL and CE certifications.

Click here to see it on Amazon.

It has excellent recovery after deep discharge under frequent cyclic discharge use due to its gelled electrolyte technology.

This battery also has a patent-designed construction with PVC separator construction that ensures even distribution of gel electrolyte throughout the inner battery. It also ensures the best balance of all battery parts.

Other features include having triplex sealed construction with explosion-proof safety and high efficiency of recovery.

You can use Weize GEL batteries in a wide variety of applications, such as solar power systems, electric vehicles, consumer electronics, golf carts, hunting, lawn and garden tools, medical mobility, access control devices, photography, portable tools, solar, toys and hobby, emergency lighting, security, and more.

  • 12V 100AH gel electrolyte technology deep-cycle sealed battery
  • Size: 12.8(L) x 6.8(W) x 8.5(H) inch
  • Long-life, heavy-duty lead-calcium grids that ensure mild corrosion
  • Enables a long designed 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

Conclusion – Best Marine Battery

What is the best marine battery? Our top 12 picks for the best marine batteries are as follows:

  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. VMAX SLR125 AGM Sealed Deep Cycle 12V 125Ah Batteries
  7. Odyssey Heavy Duty Commercial Battery
  8. XS Power D6500 12V 3,900 Amp AGM High Output Battery
  9. Odyssey 34/78-PC1500DT LTV Battery
  10. Optima 8037-127 D27F YellowTop Starting and Deep Cycle Battery
  11. VMAX MR107-85 12V 85AH AGM Deep Cycle Marine Battery
  12. Weize 12V 100AH Pure GEL Deep Cycle Rechargeable Battery