Mighty Max 12V 35AH Deep Cycle AGM Solar Battery Review


In Brief: Review of Mighty Max 12V 35AH

The Mighty Max 12V 35AH is another Mighty Max battery promising to power to the fullest – erm, max. The people over at Mighty Max believe in presenting consumers with some of the finest – and most affordable – battery and solar panel products available.

Mighty Max is a famous American brand that is located in Brooklyn, New York that specializes in power supply manufacturing.

The company takes pride in creating products that are affordable and have been doing so for many years.

This deep-cycle, seal lead acid battery can provide you with enough power to get through work or play, which makes it a fine product in our books.

We would honestly recommend this to anyone thanks to its affordability and reasonable warranty coverage.

But does this model live up to those hefty expectations? Find out by reading further on.

Key Specifications

ML35-12 - 12V 35AH U1 Deep Cycle AGM Solar Battery Replaces 33Ah, 34Ah, 36Ah

The ML35-12 (as it is listed on the company’s website) promises you hours of power and functionality, a state-of-the-art non-corrosive heavy-duty build, and long service life.

Thanks to its thicker plates than most other batteries, the ML35-12 can discharge far deeper than others of its kind.

This better discharge means that you can make use of it for hours without having to worry about charging it.

The longer discharge time of the ML35-12 means that it can handle various applications and uses, including powering your tools, boat, motorcycle, or toys.

This longer discharge is thanks to something called Absorbed Glass Mat Batteries (or AGM).

There is a lot of highfalutin science that goes into the construction of these AGM batteries, but suffice it to say that they are far more economical with their power distribution.

They are also far safer than traditional lead-acid batteries as the spill-risk of these AGM batteries is substantially lower.

Amp Hour35 Ah
TerminalNut and bolt
Weight23.15 pounds
Warranty1 year

If you want to know what you can expect from the Mighty Max batteries see this YouTube video: 


How to Use It

Luckily, you do not need to be a tech-head to be able to make effective use of this product, though the ease-of-use will be determined by what you intend to use it for.

As we have already said, the ML35-12 can be used in a variety of different settings.

Even then, the battery can easily be set up; just plug it in and use it. The only thing to keep in mind no matter what you are using it for is how you charge it.

The ML35-12 can be charged like any other battery, but you should avoid using too strong a current.

If the current is too strong, it may damage the battery. To prevent this, we recommend using a smart battery charger.

For more information see the following YouTube video for instructions on how to use this Battery from Mighty Max:


Warranty & Repairs

All Mighty Max products come with a full one-year warranty, and the ML35-12 is no exception.

The warranty is issued and respected from the exact date of purchase. This warranty does not guarantee a replacement product if your ML35-12 is damaged or otherwise unusable.

Instead, like all Might Max products above $51, a test is required to determine the damage of the product.

This test must be done by a third-party, and only applies to damage caused by faulty workmanship or materials.

If the product is suitably damaged, a replacement may be issued.

Additionally, the customer is responsible for all shipping costs, and the replacement policy is only considered if you purchased your product directly from Mighty Max.

For warranty information from the company and how to claim please go to this website: https://www.mightymaxbattery.com/product/warranty

You will learn how the warranty works and what to expect. A 1-year warranty is on offer by Mighty Max.

Customer Review Analysis

It seems that most people have been happy with their Mighty Max battery products.

A lot of customers have taken to using their ML35-12 as a replacement for other, defective battery products, and with pleasing results.

By almost every account, the ML35-12 lives up to its promise of providing long-lasting power and usage. By no means does it last forever, but customers have been happy with the run-time.

One area of concern for some customers is the size of the battery. The ML35-12 is slightly larger than some other battery products, which has been a problem for some users.

Still, despite its size, the ML35-12 is fairly lightweight and easily transportable because of that fact.

Another promise of Mighty Max is its excellent customer service, and while this is – of course – a subjective matter, it should be noted that almost every customer has been happy with the level of support from the company.

In summary, it seems that Mighty Max – and the ML35-12 – lives up to its hefty promises of quality, affordability, and support.


Pros & Cons

Like all products, the ML35-12 has its fair share of both pros and cons. Thankfully, the balance leans more in favor of pros rather than cons.


  • Suitable for use in a variety of situations
  • Can be safely placed in any position
  • Has increased shock and vibration resistance
  • Has a lighter weight and smaller dimensions than some other battery products
  • Fair price and reasonable warranty conditions


  • No official reference for discharge rates, charts, tables, etc.
  • You must purchase the product directly from Mighty Max in order to ensure the application for a replacement, if necessary.

Who Should Buy This?

As we have said already, the ML35-12 has a variety of uses and applications; almost any customer with a battery need will find some use for this product.

Many, however, cite its use on motorboats.

The ML35-12 is ideal for keeping you afloat, so if you are in need of something to keep your boat running, you would be hard-pressed to find a battery more affordable than this.

“Whatever floats your boat,” as they say.

Our Recommendation

We have reached the end of our review, and now it is time to leave you with some closing thoughts.

If you have a need for a long-lasting battery that is affordable, easy to use, and able to keep you going through work or play, you need not look any further than the ML35-12 from Mighty Max.

About Susan Brown

Susan and her husband own a mechanic shop. They do all the work themselves, from fixing cars to hunting for new customers. Susan is the brains of the operation; she writes articles on car repair-related topics based on her own experience. She loves writing about anything related to autos: diagnosing problems with cars, maintaining vehicles, and even how to choose a good mechanic!