Top Best Deep Cycle Marine Battery in 2020
Imagine being stranded far in the ocean just because your perfectly maintained boat will not start. Worst still, you are hundreds (or even thousands) of miles away from help. Well, the regular sea fearers that have been in such a situation once or a few times will agree that this is an experience that you would not wish on even the worst people under the blue skies. But, what often makes boats fail to start? There can be many answers here but in a majority of the situation, it is often a result of having a bad battery.
Whether you are planning for that long overdue sea excursion or preparing for the fishing season, you should never overlook the battery. And to make sure that your boat always gets fast and powerful starts, you need to invest in a good deep cycle marine battery. Marine batteries will also power up the electrical appliances on your boat, and so you need to have the best. Finding it should not be a problem because below we review 10 top rated ones to help make your pick an easier and more informed one.
Check Out the Best Deep Cycle Marine Battery Reviews
#1. Optima 8040-218 D35 YellowTop Battery
Optima is a highly reputable battery manufacturer, and you can be confident that they will have something that suits your boat. Their yellow top battery is designed to provide up to 98 minutes of reserve capacity to ensure optimal performance, and it will also provide optimal performance even in inclement weather. This battery is perfect for seasonal use which is just what you need for your boat thanks to its low self-discharging rate. It is designed to be up to an impressive 15 times more resistant to vibrations for a long service life, and it will withstand more than 300 recharge and discharge cycles.
Pros
- Long reserve capacity for optimal performance
- Optimal bad weather starting power
- Highly resistant to vibrations
- Low self-discharging rate
- Maintenance-free design
- Mountable in various positions
- Faster recharging
- Can withstand hundreds of discharge and recharge cycles
Cons
- Will not fit some battery boxes well
#2. Optima OPT8020-164 RedTop Battery
While the yellow top battery above is a good choice, Optima also has many other deep cycle marine batteries like this red top model. It provides up to 90 minutes of reserve capacity to ensure constant performance, and it is built for optimal starting even in bad weather. Also, like most other Optimal batteries, it is highly resistant to vibrations for longer service. This fast recharging battery also comes in spill-proof and maintenance-free design and is designed to produce strong starting burst and its design allows it to be mounted almost in any position.
Pros
- 90-minute reserve capacity
- Optimal bad weather starting
- High vibrations resistance for increased durability
- Relatively faster recharging
- Strong starting bursts
- Spill-proof design
- Maintenance-free
Cons
- Needs some propping up for a perfect fit
#3. Optima 8016-103 D34M BlueTop
With an impressive reserve capacity of up to two hours, you can always be confident of getting optimal performance from this battery. It is also designed to work well on boats and with proper dimensions for a perfect fit. This battery provides fast and easy stats even in bad weather and with up to 15 times more resistance to vibrations, it is also relatively more durable. The spill-proof construction is also quite handy and like many other Optima batteries, it is mountable in almost any position.
Pros
- Super long reserve capacity
- Easy bad weather starting
- Highly durable thanks to high vibration resistance
- More resistant to vibrations
- Spill-proof construction
- Mountable in any position
Cons
- A little expensive
#4. Optima 8006-006 34M BlueTop Battery
Here is yet another top-notch quality marine battery from Optima. It is also designed to withstand up to 15 times more vibrations than typical batteries to ensure a long service life and with a reserve capacity of 100 minutes for optimal starting. It will withstand more recharges than many other marine batteries and it will also recharge relatively faster. Also, it is designed with a spill-proof and maintenance-free design and specifically for use on boats and RV. You can mount this battery in almost any position.
Pros
- Highly resistant to vibrations
- Withstands more recharges than most other marine batteries
- Designed to allow for mounting in any position
- Relatively more durable
- Fast battery recharging
- Spill-proof and maintenance-free
Cons
- Quite a heavy battery
#5. Universal UB121000-45978 Deep Cycle Battery
This deep cycle battery from Universal Power Group is designed for versatility as it will not only work great on your boat but also for a variety of other applications including in a solar lighting system. It features a unique terminal design with both tapered posts and lug style to make connections easier for you. Also, it is designed to allow for mounting almost anywhere and with high resistance to shocks and vibrations for enhanced durability. Like most other top-notch quality batteries, it is both spill-proof and maintenance-free.
Pros
- Can be mounted in any position
- Designed to resist shocks and vibrations
- Great terminals design
- Maintenance-free
- Spill-proof
Cons
- Relatively quick idle discharging
#6. VMAX857 12V AGM Marine Deep Cycle Battery
With the heavy-duty lead-tin alloys on this battery, you can be confident of always getting an extra margin of performance. Also, these heavy-duty grids are designed to provide a long service life in both cyclic and float applications and maintain the same even after repeated cycles of discharges. It is also a maintenance-free battery that is designed to ensure you never have to add water or check for the gravity of the electrolyte. The battery is also spill-proof and non-hazardous and is relatively lightweight for easy handling.
Pros
- Heavy-duty grids
- Maintenance-free operation
- Highly affordable battery
- Spill-proof and non-hazardous
- Lightweight for easy handling
- Fast recharging rate
Cons
- Not the most long-lasting
#7. Interstate Batteries DCM0035 Replacement Battery
Whether you want a battery for exclusive use on your boat or for a few other things when not out in the sea, this one is versatile enough to allow for this. It is also a compact and lightweight battery that will be super easy to handle and it is designed to allow for mounting in almost any angle. With this deep cycle battery, you can be confident of fast boat starts, and it is sealed for maintenance-free operation. Also, it is a quick recharging battery designed to withstand many recharge and discharge cycles.
Pros
- Versatile for a wide range of applications
- Compact and lightweight for convenience
- Mountable on any angle
- Fast boat starts
- Sealed for maintenance-free operation
- Quick recharging
- Designed to withstand many recharge and discharge cycles
Cons
- Too small for some boats
#8. Mighty Max Battery 55Ah Deep Cycle Battery
Mighty Max Battery makes this deep cycle battery to ensure you never have to worry about maintenance as it is sealed for long maintenance-free operation. The battery is also designed to work well at both high and low temperatures, and with deep discharge recovery for minimal downtime. It is also mountable in almost any position and is designed to resist shocks and vibrations for increased durability, and like most high-quality modern batteries it has a spill-proof design.
Pros
- Maintenance-free battery
- Wide operating temperatures
- Deep discharge recovery
- Mountable in any position
- Spill-proof design
- Long service life
Cons
- Does not seem to hold the charge as long as the other high-end models
#9. MightyMax 75Ah SLA Battery
Everything from the characteristic high discharge rate to the spill-proof design is meant to make this a high-performing and reliable battery for your boat. But the most impressive feature about it is that it maintains peak performance at both low and high temperatures to make starting your boat easy regardless of the weather. Also, you can mount it in almost any position or angle and it features a maintenance-free operation meaning it will not require any adding of fluid.
Pros
- High discharge rate characteristic
- Spill-proof design
- Great high and low-temperature performance
- Can be mounted in any position/angle
- Maintenance free operation
Cons
- Relatively less capacity
#10. Vmaxtanks MR107 85Ah Deep Cycle Battery
The heavy-duty MR10785 by Vmaxtanks is designed to ensure that it will be many years before you need a battery replacement. Provided you do not subject it to unnecessary abuse, it should serve you for at least 8 years. Also, it is a maintenance-free battery that will never require you to add any liquid, and it is built to ensure fast recharge rates for minimal downtimes, and with some heavy duty grids for improved performance and durability. And the high shock and vibrations resistance helps to increase the overall life of the battery
Pros
- Long battery lifespan
- Fast recharge rate
- Heavy duty grids
- Maintenance-free operation
- High shocks and vibration resistance
Cons
- Quite a bulky battery
Conclusion
The battery might be just a small component of your boat, but it plays one of the most important roles, and so you need to make sure you get the best quality. With our top 10 in-depth reviews above this should be super easy as you only need to compare and contrast and pick what you find most appropriate for your boat. Also, feel free to share this piece to help others find their ideal deep cycle marine battery, and leave us your valued remarks and comments below.
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