It’s no wonder Group 27 batteries are among the most popular deep cycle batteries on the market. They’re commonly used for marine vehicles, and they have exceptional size: performance ratio.
In this buying guide, I’ll give you a roundup of the best group 27 Deep Cycle battery units on the market.
| Image | Product | Details | Price |
|---|---|---|---|
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1Optima 8027-127 D27M Starting and Deep Cycle Marine Battery | • Highly durable against vibrations • High tolerance of extreme temperatures • Spiral-Cell technology for an impeccable performance |
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ExpertPower 12v 33ah Rechargeable Deep Cycle Battery | • Utilizes AGM technology for high performance and low maintenance • A compact and lightweight frame • Spill-proof design |
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Vmax MR127 MA Deep Cycle Battery | • Exceptionally fast recharging rate • Highly durable frame due to the top-notch build materials • Powerful enough for heavy-duty applications |
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Universal Power Group 12V AGM Battery | • Can power devices for long hours • Durable and maintenance-free • Less than 3% self-discharge rate |
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Weize 12V 100AH Deep Cycle AGM Battery | • Quick recovery after deep discharge • Affordable price • Works for RVs and solar systems |
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How to Choose the Best Group 27 Deep Cycle Battery
In order to choose the best group 27 battery, you’ll want to be fully aware of the features associated with it. That way, you can make the right choice according to your usage. Here, I’ll tell you some things to keep in mind while choosing.
Capacity
When choosing a deep-cycle battery, it’s only normal that the first thing you consider is the capacity. Most batteries on the market are 100Ah, considering it’s the standard capacity. However, you may need a higher capacity if you intend to power heavy-duty devices.
A higher capacity translates typically to a higher price. That’s why you should assess your needs correctly before buying. That way, you don’t pay unnecessary extra costs.
Type
The most common deep cycle battery types are AGM and Lead Acid. Let’s see the difference between them so that you can choose correctly.
Lead Acid
Lead Acid batteries are the affordable option of the two. However, they’ll require maintenance, as opposed to AGM ones. Lead Acid batteries normally last for up to two and a half or three years. They can handle recharging and draining just fine when it comes to trolling.
As for the downsides, the Lead Acid batteries will need topping off with distilled water, which means more effort on your part.
AGM
AGM stands for Absorbed Glass Mat; the technology means that the batteries are completely sealed. In a way, this means that they have a longer lifespan than standard batteries because they require no maintenance. Plus, these batteries last longer on a single charge.
The thing with AGM batteries is that they cost much more than standard batteries—sometimes twice as much!
However, the high price is justified, seeing as AGM means higher performance and safety. An AGM battery can last for up to four years, which is pretty impressive.
Cost
The cost isn’t the same as the price. You may get a cheap battery at a local store and think you’re getting a good bargain. However, it’s quite the opposite.
A low-quality battery will need frequent replacement, which is a high cost on its own. Additionally, it’ll have a shorter lifespan than high-quality ones. You’ll have to pay for maintenance too, which you’ll need more than often. You may end up paying more on the cheap battery than the total cost of the expensive one. I’ve been there, and it’s not a good feeling!
Best Group 27 Batteries – Our Top 5 Picks
When it comes to group 27 batteries, the abundance of features and options on the market will inevitably get you confused. To avoid this, I’ve compiled the five best options in the market, in terms of usability and power levels.
1. Optima 8027-127 D27M Starting and Deep Cycle Marine Battery
When it comes to convenience, the D27M battery from Optima is hard to match. It features a lightweight, compact design that makes it easier to handle and replace. Additionally, it shows high resistance against vibrations, as opposed to most compact batteries. That makes it an ideal battery to use during severe weather conditions.
The battery isn’t intended for heavy-duty applications; it’s ideal for moderately-sized boats. You can use it to power a couple of accessories, too. Considering it’s a deep cycle battery, you can use it to power fish finders, GPS systems, bilge pumps, and the like. The battery is perfectly capable of powering all these electronics while keeping its cranking power high for the motor.
The manufacturers used Spiral-Cell technology for this battery. Meaning, it’s designed to deliver exceptional performance while tolerating extreme temperatures.
Furthermore, the AGM technology means that the battery can be recharged for up to three times the recharging of a lead-acid battery. It’ll also charge way faster, thereby making your mission easier and shortening the time needed.
Pros
- Highly durable against vibrations
- High tolerance of extreme temperatures
- Spiral-Cell technology for an impeccable performance
Cons
- Not ideal for heavy-duty applications
2. ExpertPower 12v 33ah Rechargeable Deep Cycle Battery
While the 33Ah rating of the battery isn’t the best choice for heavy-duty jobs, it performs perfectly well in applications that don’t require much power. In addition to that, that means that it’ll charge much faster than high-capacity batteries, which gives you the advantage of a short time.
Standing at 12 pounds, the overall weight of the battery makes it easy to handle and place anywhere. Its size is compatible too, standing at 7.1 x 3 x 6.6 inches. You’ll face no issues trying to place it in a small or medium vehicle.
The battery utilizes the AGM technology, which enables the plates to absorb the acid inside, thereby making the battery spill-proof. Additionally, the battery features low self-discharge technology, which means you won’t have to recharge it often.
Pros
- Utilizes AGM technology for high performance and low maintenance
- A compact and lightweight frame
- Spill-proof design
Cons
- The low capacity may not work for some users|
3. Vmax MR127 MA Deep Cycle Battery
The VMAX has compact body dimensions, making it suitable for small and medium-sized boats and vehicles. On top of that, it’s made of top-tier plastic and tin alloy plates, making it proof to shocks and acids. Accordingly, this means it’s more durable than most options on the market.
Like the Optima, the VMAX is manufactured using AGM technology, which accounts for the optimum performance. The technology helps the battery charge faster than the standard batteries, and it makes it less prone to getting damaged or needing maintenance.
As for the charging capabilities, the battery can recharge incredibly fast. That being said, due to the high discharging rate and constant performance, you may encounter the occasional cutout. Therefore, it’s best if you make sure to observe the charger and reset the cycle regularly.
Pros
- Exceptionally fast recharging rate
- Highly durable frame due to the top-notch build materials
- Powerful enough for heavy-duty applications
Cons
- The heavyweight can be overwhelming for some users
4. Universal Power Group 12V AGM Battery
At a weight of approximately 64 pounds, the UP is a bit heavy. However, the relatively compact size makes up for it. It measures 12.17 x 6.61 x 9.16 inches, enabling you to mount it anywhere you like. The stainless cell also makes it easier to handle and place in most spaces.
The battery charges faster than most similar options, thanks to its AGM technology. Not only that, but it also holds its charge for longer than your standard battery.
That’s not the only feature where the technology excels. The battery absorbs the acid into its plates, making it proof to leaks. This also means it’s a maintenance-free device, which is a bonus.
Pros
- Can power devices for long hours
- Durable and maintenance-free
- Less than 3% self-discharge rate
Cons
- On the expensive side of the market
5. Weize 12V 100AH Deep Cycle AGM Battery
Moreover, you can use the battery for a wide array of applications, including boats, RVs, and similar machines. You can also use it to troll motors.
The Weize is able to recover from deep discharging without a hitch, as opposed to most similar models. Most batteries will need several hours of rest before they can charge at full capacity. Thankfully, you won’t face this issue with the Weize.
On top of all that, the Weize comes at an affordable price. With the features it comes with, I’d say it’s quite the bargain!
Pros
- Quick recovery after deep discharge
- Affordable price
- Works for RVs and solar systems
Cons
- Heavyweight
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