Updated Top 5 Mighty Max Battery Reviews for 2020

Mighty Max Battery Reviews

Mighty Max, as a brand, has gained a lot of traction over the last few years. No doubt, it produces high-quality, heavy-duty SLA deep-cycle AGM batteries (paid-link) of different amp hours.

One of the core characteristics that a good brand should have is prompt customer support. Mighty max genuinely excels in standing behind the customers.

With that said, it’s quite a daunting task for anyone to pick the right battery for the correct application. It’s because you have several options out there to choose from.

On top of that, using or charging the batteries in the wrong way can lead to some bad experience for you.

Keeping those in mind, I’ve prepared this Mighty Max battery reviews article, where I will be reviewing 5 top-notch AGM deep-cycle batteries produced by Mighty Max.

I will also guide you with some charging instructions and answer some frequently asked questions.

Let’s get our buts off.

Our Quick Picks

Preview
Our Best Choice
Mighty Max Battery ML35-12 - 12V 35AH U1 Deep Cycle AGM Solar Battery Replaces 33Ah, 34Ah, 36Ah Brand Product
The Runner-up
Mighty Max Battery ML18-12 - 12V 18AH CB19-12 SLA AGM Rechargeable Deep Cycle Replacement Battery Brand Product
Best Budget
ML9-12 - 12 V 9 Ah Rechargeable SLA Battery - Mighty Max Battery Brand Product
Mighty Max Battery ML12-12 - 12V 12AH F2 SLA AGM DEEP-Cycle Rechargeable Battery Brand Product
Mighty Max Battery Exit Sign Battery 6V 4.5Ah Backup - 10 Pack Brand Product
Title
Mighty Max Battery ML35-12 - 12V 35AH U1 Deep Cycle AGM Solar Battery Replaces 33Ah, 34Ah, 36Ah Brand Product
Mighty Max Battery ML18-12 - 12V 18AH CB19-12 SLA AGM Rechargeable Deep Cycle Replacement Battery Brand Product
ML9-12 - 12 V 9 Ah Rechargeable SLA Battery - Mighty Max Battery Brand Product
Mighty Max Battery ML12-12 - 12V 12AH F2 SLA AGM DEEP-Cycle Rechargeable Battery Brand Product
Mighty Max Battery Exit Sign Battery 6V 4.5Ah Backup - 10 Pack Brand Product
Editor's Rating
4.8/5
4.8/5
4.7/5
4.7/5
4.7/5
Prime Status
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Our Best Choice
Preview
Mighty Max Battery ML35-12 - 12V 35AH U1 Deep Cycle AGM Solar Battery Replaces 33Ah, 34Ah, 36Ah Brand Product
Title
Mighty Max Battery ML35-12 - 12V 35AH U1 Deep Cycle AGM Solar Battery Replaces 33Ah, 34Ah, 36Ah Brand Product
Editor's Rating
4.8/5
Prime Status
-
Full Review
The Runner-up
Preview
Mighty Max Battery ML18-12 - 12V 18AH CB19-12 SLA AGM Rechargeable Deep Cycle Replacement Battery Brand Product
Title
Mighty Max Battery ML18-12 - 12V 18AH CB19-12 SLA AGM Rechargeable Deep Cycle Replacement Battery Brand Product
Editor's Rating
4.8/5
Prime Status
-
Full Review
Best Budget
Preview
ML9-12 - 12 V 9 Ah Rechargeable SLA Battery - Mighty Max Battery Brand Product
Title
ML9-12 - 12 V 9 Ah Rechargeable SLA Battery - Mighty Max Battery Brand Product
Editor's Rating
4.7/5
Prime Status
Full Review
Preview
Mighty Max Battery ML12-12 - 12V 12AH F2 SLA AGM DEEP-Cycle Rechargeable Battery Brand Product
Title
Mighty Max Battery ML12-12 - 12V 12AH F2 SLA AGM DEEP-Cycle Rechargeable Battery Brand Product
Editor's Rating
4.7/5
Prime Status
-
Full Review
Preview
Mighty Max Battery Exit Sign Battery 6V 4.5Ah Backup - 10 Pack Brand Product
Title
Mighty Max Battery Exit Sign Battery 6V 4.5Ah Backup - 10 Pack Brand Product
Editor's Rating
4.7/5
Prime Status
-
Full Review

Mighty Max Battery Reviews of Different Capacities – Detailed Explained

Here’s our recommended list of Best Mighty Max Batteries we found for you on the market today. 

#1. Mighty Max Battery ML35-12 12V 35AH Battery Review

Mighty Max Battery ML35-12 - 12V 35AH U1 Deep Cycle AGM Solar Battery Replaces 33Ah, 34Ah, 36Ah Brand Product
476 Reviews
Mighty Max Battery ML35-12 - 12V 35AH U1 Deep Cycle AGM Solar Battery Replaces 33Ah, 34Ah, 36Ah Brand Product
  • ML35-12 SLA is a 12V 35AH Sealed Lead Acid (SLA) rechargeable maintenance free battery.
  • Dimensions: 7.68 inches x 5.16 inches x 7.13 inches. Listing is for the Battery and Screws only. No wire harness or mounting accessories included.
  • SLA / AGM spill proof battery has a characteristic of high discharge rate, wide operating temperatures, long service life and deep discharge recover.
  • Rechargeable battery that can be mounted in any position, resists shocks and vibration. Long lasting high performance in high and low temperatures.
  • Backed by a 30 day refund policy and full 1 year warranty.

What We Liked
    • It’s pretty straightforward to install.
    • A lightweight battery, I must say.
    • This battery makes devices start right up.
    • It seems to be an amazingly powerful and sturdy option.
    • It’s one of the best batteries for trolling motors.
    • The size is quite compact to fit for most of the applications, including fitting on the boat. It’s easy to mount too.
    • It charges so fast and holds the charge for a long time. (holding the charge varies depending on volts and amp of the object you are running with this battery).
    • An onboard handle helps to transport the battery effortlessly.
    • This one is a maintenance-free and spill-proof battery.
    • It performs well in both high and low temperatures.
    • It’s a shock and vibration resistant unit.
    • You can recharge the battery with sunlight too.
    • This unit comes well-packed. It’s almost impossible to cause damage during transit.
    • It’s reasonably priced.

What We Didn't Like
  • Although I don’t have a complaint about the pricing, some real users think the price could have been better.
  • Wire harness or mounting accessories with the package would have been a useful addition at this price range. (a set of nuts and bolts are included, though)

Bottom Line
Mighty Max ML35-12 – 12V 35AH is a quality AGM deep cycle battery to handle medium-duty jobs.

With that said, you can use it for so many devices, motors including pitching machine, fishing reel, solar system, rv, golf cart, electric motor, consumer electronics, toys, lawn tractor, so and so forth.

It’s a bit early for me to conclude on its durability. But like always, I took the opinion of some other real users who have been using this battery for long without any issue.

Battery Dimension: 7.68”x 5.16”x7.13”.

Battery Type: Sealed Lead Acid (SLA) AGM Deep Cycle.

Pro Tip: This is not a car battery. So, don’t use it for cars. Don’t short the battery terminals, don’t charge in a sealed container.

#2. Mighty Max Battery ML18-12 12V 18AH 

Mighty Max Battery ML18-12 - 12V 18AH CB19-12 SLA AGM Rechargeable Deep Cycle Replacement Battery Brand Product
461 Reviews
Mighty Max Battery ML18-12 - 12V 18AH CB19-12 SLA AGM Rechargeable Deep Cycle Replacement Battery Brand Product
  • ML18-12 SLA is a 12V 18AH Sealed Lead Acid (SLA) rechargeable maintenance free battery.
  • Dimensions: 7.13 inches x 3.01 inches x 6.57 inches. Terminal: Nut and Bolt. Listing is for the Battery and Screws only. No wire harness or mounting accessories included.
  • SLA / AGM spill proof battery has a characteristic of high discharge rate, wide operating temperatures, long service life and deep discharge recover.
  • Rechargeable battery that can be mounted in any position, resists shocks and vibration. Long lasting high performance in high and low temperatures.
  • Backed by a 30 day refund policy and full 1 year warranty.

What We Liked
    • Easy to install and comes with terminal nuts and bolts that you need for the installation.
    • It holds the charge well and takes less time to charge up fully.
    • This one fits in most of the cases as it’s compact.
    • It’s easy to transport.
    • The terminals seemed solid, powerful, and I liked the rubber cover on them.
    • It comes fully charged, so you can install it and use it right off the bat.
    • It offers a spill-proof case, shock and vibration resistance, high performance in both low and high temperatures.
    • A maintenance-free battery.
    • This battery features a high discharge rate and deep discharge recovery.
    • The price is quite reasonable.
    • A durable battery.

What We Didn't Like
  • The battery connection post could be more prominent.
  • The bladed terminal might bother you if you use alligator clips.
  • No charging cord and plug come with the package.

Bottom Line
You can use this battery with several devices, including mobility scooter, trolling motor, clay pigeon machine, generator, solar light system, kids power wheel, DR power mower, electronic devices, electric vehicles, air compressors, wheelchair, and many more.

Battery Dimension: 7.13”x3.01”x6.57”.

Battery Type: Sealed Lead Acid (SLA) AGM Deep Cycle.

Pro Tip: Don’t use this battery for a sump pump. Don’t short the battery terminals, don’t charge in a sealed container.

#3. Mighty Max ML9-12 12V 9AH Battery 

ML9-12 - 12 V 9 Ah Rechargeable SLA Battery - Mighty Max Battery Brand Product
353 Reviews
ML9-12 - 12 V 9 Ah Rechargeable SLA Battery - Mighty Max Battery Brand Product
  • ML9-12 SLA is a 12V 9AH Sealed Lead Acid (SLA) rechargeable maintenance free battery
  • Amperage 9 Dimensions 5 94 inches x 2 56 inches x 3 94 inches Terminal F2 Listing is for the Battery only No wire harness or mounting accessories included
  • Compatibility Aqua Vu Marcum Vexilar 12VOLT Vexilar FL-8SE Genz Pack Ion Block Rocker UPS Audio HR-1234W-F2 APC BE550G Vexilar IP1212 FL-12 Ice Pro APC BACK-UPS 600 BN600 MarCum LX-5 Ice Fishing Sonar Razor EcoSmart Metro Electric Scooter Vexilar UP2012D FL-20 Ultra Pack Vision CP1272 Razor e200 / e200s / e225 / e300 / e300s / e325 Geek Squad 875VA UPS CyberPower RB1290 UPS APC BACK-UPS ES BE725BB Portable Fish Finder 570 Leoch DJW12-9 0 T2 Razor MX350 MX400 Electric Dirt Bike
  • Rechargeable battery that can be mounted in any position resists shocks and vibration Long lasting high performance in high and low temperatures
  • SLA / AGM spill proof battery has a characteristic of high discharge rate wide operating temperatures long service life and deep discharge recover

What We Liked
    • You have multiple packs to choose from like 1 pack, 2 pack, 4 pack, 6 pack, 8 pack, 10 pack.
    • It’s one of the best batteries for toys.
    • Easy to install and get things going instantly.
    • The battery comes fully charged, and it’s readily usable.
    • It’s compact enough to fit for the purpose.
    • Easy to carry along.
    • Like other Mighty Max batteries, this one is also maintenance-free, leak-proof, shock, and vibration resistance.
    • It works perfectly in both low and high temperatures.
    • This battery holds the charge for long and takes minimum time to get fully charged.
    • It’s quite affordable.

What We Didn't Like
  • You can use this battery for only light use.
  • It doesn’t come with a charger.

Bottom Line
This Mighty Max ML9-12 battery is a perfect option for Toys, UPS, Speaker, LED light, cooler stereo, block rocker, garden tools, medical mobility, block rocker, outdoor fan, fish finder, tennis ball machine, home security system, etc.

All in all, this model is a good battery, both electrically, and mechanically for light-duty jobs.

Battery Dimension: 5. 94”x 2. 56”x3. 94”.

Battery Type: Sealed Lead Acid (SLA) AGM battery.

Pro Tip:  It works as a great replacement battery for your UPS at an affordable price. Instead of buying other batteries for UPS, better try this one. This battery can be charged by a 12V solar system.

Remember, this battery is not water-proof but water-resistance. You should not submerge it for long.

Don’t short the battery terminals, don’t charge in a sealed container.

#4. Mighty Max Battery ML12-12 12V 12AH Battery 

Mighty Max Battery ML12-12 - 12V 12AH F2 SLA AGM DEEP-Cycle Rechargeable Battery Brand Product
194 Reviews
Mighty Max Battery ML12-12 - 12V 12AH F2 SLA AGM DEEP-Cycle Rechargeable Battery Brand Product
  • ML12-12F2 SLA is a 12V 12AH Sealed Lead Acid (SLA) rechargeable maintenance free battery.
  • Dimensions: 5.94 inches x 3.88 inches x 4.00 inches. Terminal: F2. Listing is for the Battery only. No wire harness or mounting accessories included.
  • SLA / AGM spill proof battery has a characteristic of high discharge rate, wide operating temperatures, long service life and deep discharge recover.
  • Rechargeable battery that can be mounted in any position, resists shocks and vibration. Long lasting high performance in high and low temperatures.
  • Backed by a 30 day refund policy and full 1 year warranty.

What We Liked
    • No question about the reliability of this battery.
    • Like other Mighty Max batteries, this one also comes fully charged. Therefore, you can use it right out of the box.
    • It’s quite a powerful battery.
    • This battery can hold the charge for a relatively long time.
    • It seems to provide an excess capacity of 12AH.
    • A compact battery that can be mounted effortlessly.
    • Installing it is a piece of cake.
    • It is shock and vibration resistant, spill-proof, and maintenance-free.
    • Like other Mighty Max batteries, this one also works well in both low and high temperatures.
    • This one also features a high discharge rate and deep discharge recovery.
    • It’s lightweight and easy to transport.
    • It offers excellent value for the money.
    • I must admire the packaging of the unit.

What We Didn't Like
  • Some users have complained about battery life. It’s too early for me to judge that, though.
  • A bit larger than the original version of this battery.

Bottom Line
You can use this battery for several applications, including but not limited to the internet router, LED, toy, UPS, electric wheelchair, power riding toy, tennis ball machine, etc.

Regarding the longevity of the battery, I had to take the opinion from other real users. Most of them are satisfied with the battery life. On the other hand, a few users are dissatisfied too.

Battery Dimension: 5.94”x3.88”x4.00”.

Battery Type: Sealed Lead Acid (SLA) AGM deep cycle battery.

Pro Tip: Don’t short the battery terminals, don’t charge in a sealed container.

#5. Mighty Max Battery 6V 4.5Ah Exit Sign Battery- 10 Pack

Mighty Max Battery Exit Sign Battery 6V 4.5Ah Backup - 10 Pack Brand Product
33 Reviews
Mighty Max Battery Exit Sign Battery 6V 4.5Ah Backup - 10 Pack Brand Product
  • ML4-6 SLA is a 6V 4.5AH Sealed Lead Acid (SLA) rechargeable maintenance free battery. Pack of 10
  • Dimensions: 2.76 inches x 1.85 inches x 4.17 inches. Terminal: F1. Listing is for the Battery only. No wire harness or mounting accessories included.
  • SLA / AGM spill proof battery has a characteristic of high discharge rate, wide operating temperatures, long service life and deep discharge recover.
  • Rechargeable battery that can be mounted in any position, resists shocks and vibration. Long lasting high performance in high and low temperatures.
  • Backed by a 30 day refund policy and full 1 year warranty.

What We Liked
    • An excellent battery for light-duty jobs.
    • It’s a maintenance-free battery too.
    • This one is spill-proof too; hence no doubt about safety.
    • It works well in both high and low temperatures.
    • This one is a super-compact battery, super lightweight too. That’s why you can mount it at any suitable place without any hassle.
    • It holds the charge for long as well.
    • These batteries come with appropriate packaging.
    • The price is quite affordable, considering it’s a ten packs kit.

What We Didn't Like
  • Nothing significant.

Bottom Line
This battery from Mighty Max is a perfect suit for exit signs. Besides that, you can use it for several other devices and tools like an off-grid solar panel,

Battery Dimension: 2.76”x1.85”x4.17”.

Battery Type: Sealed Lead Acid (SLA) AGM battery.

Pro Tip: Don’t short the battery terminals, don’t charge in a sealed container.

Now, let me answer some of the frequently asked questions.

Frequently Asked Questions (FAQs)

Question #1. Who makes the Mighty Max batteries?

Answer: Well, Mighty Max itself is a brand that makes these Mighty Max batteries. Mighty Max is quite famous in manufacturing AGM deep cycle batteries and battery accessories.

This very brand excels in making quality products that include solar panels, battery chargers too.

Mighty Max is indeed an expert company with all the capabilities of standing behind its customers efficiently. The company backs the warranty without any questions asked.

Regarding price, I must say all of its batteries are quite reasonable and offer excellent value for the money.

More importantly, its batteries are compatible with major brands in automobile, solar, electric fields.

Question #2. Are Mighty Max batteries any good?

Answer: Yes, of course. The batteries I’ve listed here are AGM deep-cycle batteries that you use for various devices and tools.

All of them hold the common characteristics of any AGM batteries like they are maintenance-free, spill-proof, shock and vibration resistance, valve-regulated, corrosion-free, durable, holds the charge for long, require less time to fully charge, safe, and reliable.

All these batteries offer excellent value for the price, and they are affordable too.

Mighty Max Battery Charging Instructions

The Mighty Max batteries are deep-cycle batteries. That’s why you better know how to charge a deep-cycle battery. Obviously, these are not car batteries or marine batteries or any other standard batteries. So, you must know some vital points about charging Mighty Max battery.

You can charge these batteries using either a portable charger or a fixed charging source. Nonetheless, I prefer using a portable charger to a fixed charging source.

First and foremost, you have to use the correct charger, which is fast. Unfortunately, the Mighty Max batteries don’t come with a charger in the package, though. You have to buy a charger (paid-link) separately.

Not charging in a sealed container is vital as the company instructs this for each of its batteries.

Although the batteries come fully charged, and you can use them right off the bat, equalization charging is necessary at least once in a month or for every 10 discharge cycles.

If you don’t know what equalization charging is, it’s the process of charging a 12V battery with at least 14.4 volts for at least one hour.

Final Words

In this Mighty Max battery reviews article, I’ve reviewed 5 best Mighty Max batteries mentioning their highs and lows elaborately. I also mentioned some of the core applications of each of them.

I hope you haven’t missed out on the FAQ section and the battery charging instructions.

What I like most about these batteries is the reliability and performance they provide without hurting the pocket.

All of these are lightweight and compact to provide secure mounting and transportation facilities.

Despite having a few minor hiccups, I bet you won’t regret buying from this brand.


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