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Author: William Kerner
Date: February 10, 2019

Finding the Best AGM Battery in 2020 - Reviews and Buying Guide

In the ever-growing industry of battery production, a new type has emerged as major subversive and innovative force in the space; AGM batteries.  They have become the preferred option of car enthusiasts around the world and have garnered acclaim from industry experts. But is the hype really warranted? Keep reading as we answer that question and reveal the best AGM battery on the market today.

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What you should focus on when you are looking for the best AGM battery

As it is the case with any type of battery, you need to familiarize yourself with the characteristics and features of AGM batteries before deciding on which option to go with. This will allow you to have a better understanding of how they operate and give you a clear idea of the performance that you can expect out of them. Below are the few factors that you should prioritize when picking the best AGM battery.

Compatibility

The first thing that you need to make sure of is whether the battery is compatible with your equipment or not. Before making an investment in a particular unit, you need to inquire about its range of compatibility to ensure that it is a good fit for your vehicle. The main variable that you should focus on here is the amperage per hour (Ah). It needs to be comparable to that of the vehicle.

Cold cranking amps

This factor revolves around the battery’s capacity to deliver a consistent current in cold temperature. This is an essential quality that will enable you to operate your vehicle in rough weather conditions. If you live in an area with very cold weather; the CCA of your battery should be rated at a minimum of 600 CCA. Batteries that have a lower rating won’t be able to start your engine.

Reserve capacity

This is another critical factor that is seldom remembered by novice users. The reserve capacity of a battery refers  to the number of minutes that a fully charged battery will take to discharge at a rate of 25 amps at a temperature of 80 F. If you are planning to use a lot of amperage in your vehicle, then a battery with a very high reserve capacity is the ideal option for you.

Durability

AGM batteries are relatively expensive, so you need to make sure that your investment is going toward something that can handle extensive use and has the capacity to last for a long time. The case should be completely leak proof and must be constructed from high-quality materials that allow it to withstand rough applications.

Comparison Table

Preview
VMAX V35-857 12 Volt 35AH AGM Battery Deep Cycle High Performance Group U1 Battery Compatible with...
High End
12V 100Ah AGM Sealed Lead Acid Battery UB121000 Group 27
Best Choice
Optima 9006-006-FFP BlueTop Group 34 Marine Battery
Exide XMC-31 MEGACYCLE AGM-200 Sealed Maintenance Free (AGM) Marine Battery
Renogy Deep Cycle AGM Battery 12 Volt 100Ah for RV, Solar Marine and Off-grid Applications, Gray
Title
VMAX V35-857 12 Volt 35AH AGM Battery Deep Cycle High Performance Group U1 Battery Compatible with...
12V 100Ah AGM Sealed Lead Acid Battery UB121000 Group 27
Optima 9006-006-FFP BlueTop Group 34 Marine Battery
Exide XMC-31 MEGACYCLE AGM-200 Sealed Maintenance Free (AGM) Marine Battery
Renogy Deep Cycle AGM Battery 12 Volt 100Ah for RV, Solar Marine and Off-grid Applications, Gray
Capacity/Power
35 Ah
100 Ah
-
100 Ah
100 Ah / 200 Ah
Battery Type
-
-
-
-
-
Item Dimensions
7.7 x 6.1 x 5 inch
12 x 6.6 x 9 inch
12.1 x 11.8 x 11.5 inch
13 x 6.6 x 9.4 inch
13 x 6.8 x 9 inch
Item Weight
25 pounds
71.5 pounds
42.6 pounds
71 pounds
66 pounds
Extra features
The lifespan of this battery is great, It can absorb shock and eliminate vibrations
The case is leak and spill proof, The AGM technology eliminates the impact of shocks and vibrations
It employs spiral battery cells and AGM technology, The low resistance allows for more efficient managing of power output
The battery has the longest lifespan in the market, The case is exceptionally durable
Good solar energy storage capacity
Warranty
-
-
2 Year
2 Year
-
Reviews
53 Reviews
15 Reviews
84 Reviews
48 Reviews
653 Reviews
Rating
Prime
-
-
-
-
Price
$119.97
Price not available
Price not available
Price not available
$198.89
Preview
VMAX V35-857 12 Volt 35AH AGM Battery Deep Cycle High Performance Group U1 Battery Compatible with...
Title
VMAX V35-857 12 Volt 35AH AGM Battery Deep Cycle High Performance Group U1 Battery Compatible with...
Capacity/Power
35 Ah
Battery Type
-
Item Dimensions
7.7 x 6.1 x 5 inch
Item Weight
25 pounds
Extra features
The lifespan of this battery is great, It can absorb shock and eliminate vibrations
Warranty
-
Reviews
53 Reviews
Rating
Prime
-
Price
$119.97
High End
Preview
12V 100Ah AGM Sealed Lead Acid Battery UB121000 Group 27
Title
12V 100Ah AGM Sealed Lead Acid Battery UB121000 Group 27
Capacity/Power
100 Ah
Battery Type
-
Item Dimensions
12 x 6.6 x 9 inch
Item Weight
71.5 pounds
Extra features
The case is leak and spill proof, The AGM technology eliminates the impact of shocks and vibrations
Warranty
-
Reviews
15 Reviews
Rating
Prime
-
Price
Price not available
Best Choice
Preview
Optima 9006-006-FFP BlueTop Group 34 Marine Battery
Title
Optima 9006-006-FFP BlueTop Group 34 Marine Battery
Capacity/Power
-
Battery Type
-
Item Dimensions
12.1 x 11.8 x 11.5 inch
Item Weight
42.6 pounds
Extra features
It employs spiral battery cells and AGM technology, The low resistance allows for more efficient managing of power output
Warranty
2 Year
Reviews
84 Reviews
Rating
Prime
-
Price
Price not available
Preview
Exide XMC-31 MEGACYCLE AGM-200 Sealed Maintenance Free (AGM) Marine Battery
Title
Exide XMC-31 MEGACYCLE AGM-200 Sealed Maintenance Free (AGM) Marine Battery
Capacity/Power
100 Ah
Battery Type
-
Item Dimensions
13 x 6.6 x 9.4 inch
Item Weight
71 pounds
Extra features
The battery has the longest lifespan in the market, The case is exceptionally durable
Warranty
2 Year
Reviews
48 Reviews
Rating
Prime
-
Price
Price not available
Preview
Renogy Deep Cycle AGM Battery 12 Volt 100Ah for RV, Solar Marine and Off-grid Applications, Gray
Title
Renogy Deep Cycle AGM Battery 12 Volt 100Ah for RV, Solar Marine and Off-grid Applications, Gray
Capacity/Power
100 Ah / 200 Ah
Battery Type
-
Item Dimensions
13 x 6.8 x 9 inch
Item Weight
66 pounds
Extra features
Good solar energy storage capacity
Warranty
-
Reviews
653 Reviews
Rating
Prime
Price
$198.89

Reviews of the best AGM battery

1 - VMAXTANKS VMAX V35-857

Sale
VMAX V35-857 12 Volt 35AH AGM Battery Deep Cycle High Performance Group U1 Battery Compatible with...
53 Reviews
VMAX V35-857 12 Volt 35AH AGM Battery Deep Cycle High Performance Group U1 Battery Compatible with...
  • Dimensions: L=7.7" W=5" H=6.1"
  • Heavy Duty Grids: VMAX heavy duty lead tin alloys provide an extra margin of performance...
  • Maintenance Free Operation: There is no need to check specific gravity of the electrolyte...
  • RECOMMENDED CHARGER: VMAX BC1204 12V 3.3Amp

This battery has a number of great features that make it the top choice on the market. It boasts a decent power of around 35 Ah and it comes with a heavy-duty case that is extremely durable and completely leak proof. It has the capacity to deliver more than 9 hours of continuous charge when used moderately. The battery’s sleek design is another major selling point of this battery. On top of being compact and efficiently-constructed, it is also effective when it comes to absorbing shocks and reducing vibrations.

As far as lifespan is concerned, the XMAX V35 exceeds all expectations. The battery can last up to 8 years in float mode, a period of time that is substantially longer than what its competitors are capable of offering.

The pros

  • The lifespan of this battery is great
  • It can absorb shock and eliminate vibrations
  • It can provide up to 9 hours of power to a mid-sized trolling motor
  • The design is very compact and light

The cons

  • The instruments that are included in the manual are not comprehensive enough
  • The specs that are found in the product description are not accurate

 

2 - 12V 100Ah AGM Sealed Lead Acid Battery

12V 100Ah AGM Sealed Lead Acid Battery UB121000 Group 27
15 Reviews
12V 100Ah AGM Sealed Lead Acid Battery UB121000 Group 27
  • PS-121000
  • 12V 100AH SLA BATTERY
  • BACK UPS BATTERY
  • APC BATTERY

This is easily one of the best AGM batteries in its price range. It can power a wide array of motors with relative ease and it is characterized by a consistently high output that can last for years. Like all AGM batteries, it is adept at diffusing shocks and vibration which in turns helps it deliver a steady high-quality performance regardless of the conditions.

When it comes to actual power, the UB121000 is simply excellent. It is rated at around 12 V and it boasts 100 Ah of power. It has the capacity to work for more than 10 hours when operating a mid-sized trolling motor. Furthermore, the battery’s ability to adjust its power output depending on the size of the motor makes it ideal for smaller vehicles.

The pros

  • The battery is ideal for both large and small motors
  • The case is leak and spill proof
  • You can expect up to 10 hours of operation out of it
  • The AGM technology eliminates the impact of shocks and vibrations

The cons

  • Its weight makes it difficult to carry
  • The description omits a number of important specs

 

3 - Optima Batteries 8006-006-FFP

Optima 9006-006-FFP BlueTop Group 34 Marine Battery
84 Reviews
Optima 9006-006-FFP BlueTop Group 34 Marine Battery
  • 12-Volt, 800 Cold Cranking Amps, Size: 10" x 6 7/8" x 7 13/16" tall, Weight: 38.4 pounds,...
  • Reserve capacity of 100 minutes for constant performance
  • Optimal starting power even in bad weather
  • Fifteen times more resistant to vibration for durability

The eye-catching design is not the only thing that is worth noting when discussing this battery. This unit is immensely powerful and it is rated at 50 Ah with a reserve of around 100 minutes. The Optima can tackle several types of motors ranging from small RV motors to mid-sized and large trolling motors. Besides employing AGM technology, this battery features spiral cells, which contributes to enhancing the overall output and performance of the unit.

While it is quite expensive compared to other options in this list, the Optima battery does offer enough value to make it worth the asking price. Some of the other qualities that make it stand out even among other high-end options include the smart precision-controlled design and the low resistance.

The pros

  • The battery s capable of powering a wide range of motors
  • It employs spiral battery cells and AGM technology
  • The battery features a precision-controlled design that increases the number of recharges
  • The low resistance allows for more efficient managing of power output

The cons

  • The price might be too high for most users
  • The package is missing a number of valuable accessories

 

4 - Exide XMC-31 MEGACYCLE AGM-200

Exide XMC-31 MEGACYCLE AGM-200 Sealed Maintenance Free (AGM) Marine Battery
48 Reviews
Exide XMC-31 MEGACYCLE AGM-200 Sealed Maintenance Free (AGM) Marine Battery
  • 925 CCA at 0 degrees F, 1110 CA at 32 degrees F
  • 200 minute reserve capacity
  • Dual terminal design
  • Absorbed glass mat separator is engineered for optimal recombination rates to avoid cell...

Versatility and reliability are the two qualities that come to mind when testing this battery. It boasts several features and specs that contribute to making it the smartest pick in its price range. It has a CCA of around 925 at 0 degrees and a reserve of 200 minutes. Moreover, its power is rated at 100 Ah and it has the capacity to deliver 1,000 cycles with a discharge of 60%. It is suitable for various types of motors, mainly mid-sized trolling motors and outboard boat motors.

As it is the case with any AGM battery, this unit is completely resistant to shocks and vibrations. In addition to its tremendous output, the Exide can last up to 10 years in float mode without losing any of its consistency. In fact, its lifespan is by far the longest in the market.

The pros

  • It is quite versatile
  • It produces 1,000 cycles at a discharge rate of 60%
  • The battery has the longest lifespan in the market
  • The case is exceptionally durable

The cons

  • The battery is too bulky and heavy
  • The price is relatively excessive

 

5 - Renogy Deep Cycle AGM Battery

Renogy Deep Cycle AGM Battery 12 Volt 100Ah for RV, Solar Marine and Off-grid Applications, Gray
653 Reviews
Renogy Deep Cycle AGM Battery 12 Volt 100Ah for RV, Solar Marine and Off-grid Applications, Gray
  • Maintenance Free: Manufactured with thick absorbent glass mat (AGM) separators and...
  • Excellent Discharge Performance: Proprietary quinary alloy plates and specially treated...
  • Long Shelf Life: Made of high purity materials, Renogy Deep Cycle AGM Batteries reduce the...
  • Wide Operation Temperature Range: Improved electrolyte formula ensures stable battery...

When it comes to mid-range options, this battery ticks all the boxes. It has a decent amount of power considering its price and its range of application is surprisingly wide. It is suitable for various uses such as powering RVs, electric cars, golf carts, and even a number of consumer electronics. In addition to this, the Renogy Deep cycle AGM battery can even operate as a backup power source.

Thanks to AGM technology and a plethora of efficient design elements, the power output of this battery is highly reliable. This invaluable quality is necessary for powering mid-sized motors. Furthermore, the Renogy stands out as a highly safe battery due to its amazing ability to diffuse the effects of over-discharging.

The pros

  • The output of this battery is excellent for the price point
  • It is not affected by over-discharging
  • It is very low maintenance compared to other similarly-priced batteries
  • It boasts a good solar energy storage capacity

The cons

  • The quality of the battery will be severely compromised if you let the charge drop too low
  • It is not as portable as other mid-range options

 

The verdict

AGM batteries boast all the important qualities that you would like to have in your car; immense power, consistent reliability, and relentless durability. They might be more expensive than other options but they are definitely worth the investment. If you want the highest that the battery market has to offer, you should not hesitate in investing in one of the models that we reviewed in this article.

Last update on 2021-12-02 / Affiliate links / Images from Amazon Product Advertising API

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