Mighty Max ML35-12 Deep Cycle AGM Solar Car Battery

Last updated date: July 17, 2020

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Mighty Max ML35-12 Deep Cycle AGM Solar Car Battery

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We looked at the top Car Batteries and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Car Battery you should buy.

Update as July 22, 2020:
Checkout The Best Car Battery for a detailed review of all the top car batteries.

Overall Take

In our analysis of 123 expert reviews, the Mighty Max Deep Cycle AGM Solar Car Battery placed 9th when we looked at the top 13 products in the category. For the full ranking, see below.

From The Manufacturer

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.

Expert Reviews

Expert Summarized Score

17 expert reviews

User Summarized Score

369 user reviews

What experts liked

The body of the Might Max deep cycle has been specifically designed to be sturdy enough to withstand shocks and vibration as is expected with a portable application. As you will be using it outdoors, it will also be subjected to variations in temperature. But the Mighty Max works very well in a wide range of temperatures, giving you peace of mind.
- Power Spar
I love Mighty Max because they make dependable batteries. They have a 30 warranty on all products, so don’t be afraid of using it if you need to. Again, this is a great choice if you need a trolling motor battery for anything with 50 lbs of thrust and under, so don’t expect it to push your monster of a boat for very long. It’s suited for small boats and kayak.
- SOutdoors
January 29, 2019 | Full review
It is both lightweight and compact that makes this battery perfect for different outdoor uses such as automatic golf carts, compact medical devices, powering the trolling motors, gardening tools and more.
- Trolling Battery Advisor
The exterior is made from high quality plastic casing that is not only durable, but also shock and vibration resistant.
- Top Best Spec
It has a high discharge rate and recharges itself quickly. With a long service life, you can’t go wrong with this battery.
- Motor Day
These batteries are hard, economical and maintenance free.
- Top 10 Focus
Its innovative battery is so flexible to mount in any position you like backed by superb motility, a feature that’s highly rare amongst similar trolling motor batteries on the market.
- Jen Reviews
The battery contains valve in order to avoid overheating, which may cause damage to the battery. Thus, the need for ventilation is reduced. This kind of battery is called a valve-regulated battery.
- Car Battery World
The secret behind the Mighty Max is its state-of-the-art calcium-alloy grid. Extremely heavy duty, it promises top performance in virtually any weather conditions as well as a long service life. As a bonus, the Mighty Max also has Absorbent Glass Mat (AGM) technology. This allows you to use it in outdoor and indoor environments without worrying about leaks and dangerous spills.
- Auto Mechanics Know
February 19, 2019 | Full review
It's an affordable trolling motor battery making it one of the best for under $100.
- Fishing Skillz
The device is great for small applications such as a small boat or kayak. When used in such situations, it is usually very efficient and keeps you on the water for a while.
- Fisher Picks
It has a sturdy body that can withstand any shock and vibration. It also performs well on all extremes of weather and temperatures giving you rest from worrying when in this circumstances.
- Battery Asking
March 16, 2019 | Full review
The Mighty Max ML35-12 is a great battery for the ones that struggle with a tight budget.
- All Top 10 Best
The most important thing is that this battery is easy to carry. Thus it is portable.
- Trolling Motor Battery Guides
Furthermore, it perfectly withstands shock and vibration, so you need not worry that these two elements might produce any damage.
- Product Reviews
January 3, 2019 | Full review
The Mighty Max ML35-12 is an awesome battery which is included with a price that is excellent.
- 10 Best Select
SLA/AGM design eliminates the risk of spills
- Golf Cart Report
June 29, 2018 | Full review

What experts didn't like

The battery does not come with wire connectors which needs to be bought separately although they do come with a set of bolts and nuts for the connectors
- Power Spar
The major thing is about the cost of this battery
- Trolling Battery Advisor
The battery drains too fast.
- Top 10 Focus
One of the disadvantages is that there are no wire connectors in the box, you should buy them separately.
- Car Battery World
Not for heavier duty applications
- Auto Mechanics Know
February 19, 2019 | Full review
Not suitable for larger boats
- Fisher Picks
With its 35Ah, it cannot make many hours in water and therefore not suitable for intense deep seas functions
- Battery Asking
March 16, 2019 | Full review
The battery has got no connectors in the box which are to be bought separately.
- Trolling Motor Battery Guides
It's fitted to small kayak and boats.
- 10 Best Select
May lack power for some cart models
- Golf Cart Report
June 29, 2018 | Full review

An Overview On Car Batteries

If you are religious about your car maintenance, make sure to always ask your technician to check the life of your battery when you bring it in for routine maintenance. No one wants to be stuck because of a dead car battery. You’ll need a tow, a friend nearby to get you and some extra cash for a new battery when that happens. There is nothing good to say about that experience.

But you don’t have to experience this and can prevent it by taking several, easy precautions. In addition, when you take the precautions, you can shop for the battery you want without being in a rush. This will save you time and lots of money.

Your first step to preventing that dead car battery situation is to watch your time. There is no definite amount of time that batteries last, but an average of three to five years is what technicians estimate. There are quite a few factors that contribute to battery life: weather, maintenance of the vehicle and frequency of use. It is extremely important to test your battery every year and before you head out on a road trip.  If you buy your car used, make sure the battery that is in it is the appropriate size for the vehicle.

There are also certain things you can look for that indicate neglect. Heavy-duty use can really wear on a battery that is not suited for the technological equipment in the vehicle. Low water levels can damage your battery, as well as intricate mechanical audio or video enhancements in the car. These are all ways to prevent that dead car situation that kills your finances and really isn’t good for your vehicle.

Once you have realized that you are going to need to replace your car battery, you’ll want to know how they work so you can buy the perfect one for you. As most batteries do, a car battery stores energy for your car. Inside the battery is acid that produces electricity when reacting with the lead plates. The bigger the engine, the more powerful battery you’ll need.

Modern cars demand much more out of their batteries because of all the upgraded technology within them, so sometimes even a small vehicle will require a powerful battery if it has lots of electronic features. The Optima RedTop Starting Car Battery is great for a vehicle with high-end audio systems with a 12-volt power cell.

Your auto manual should assist in figuring out the battery your car needs. There are a few things to look for when buying the best car battery: Automotive battery electrolyte is a term that you should understand. The negative and positive lead plates turn into lead sulfate when the battery discharges. At that point, the electrolyte is depleted in sulfuric acid and becomes almost entirely water. During the charging process, the positive plate of lead dioxide and the negative plate of lead interact to give the electrolyte back its acidity. This acid is very dangerous so always be sure to wear protective gear when dealing with batteries.

Cranking amps tells the consumer how much the battery’s starting power is. You will need to look in your auto manual to find the CA number for your car battery. The cold-cranking amps is especially important to those operating a vehicle in frigid temperatures. It is the measure of amps deliverable in temperatures below freezing. A battery’s chemical process is significantly slowed down in temperatures below freezing to nearly half of what they are when the temps are warmer.

Maintenance-free is important and also pretty standard with today’s best car batteries. In the past, vehicle owners would have to add distilled water if the electrolyte levels were off. Automotive battery terminals or posts are supposed to be kept clean for optimum performance. When you get your car maintenance, ask the mechanic to clean those for you. There is a cleaning kit you can buy for those as well, so you can clean it on your own. Keeping these things in mind when you buy your next battery is what will save you time and money by extending the life of your battery.

For racing cars, you’ll want a high-output battery with an M6 Terminal Bolt. This type of battery is spill-proof and resistant to vibration. Some models have an absorbed glass mat, which is an extremely great feature since it suspends the electrolyte in fiberglass, keeping it safer from the elements. If you are looking for a replacement battery, the ACDelco Advantage AGM Automotive Car Battery is your best option. This replacement battery has very specific dimensions, so you must make sure the specs match up to your vehicle.

For an extended life battery, take a look at the Odyssey Automotive & LTV Car Battery. This battery has a 70% longer life in comparison to deep cycle batteries. The faster recharge of a full charge in 4-6 hours is an incredible feature as well. This is good for race cars as well, but always be sure to check your vehicle’s specifications in the manual to ensure a good match.

The Car Battery Buying Guide

  • Short trips around town will really tax your car battery because they don’t give it a long time to charge.
  • Keep your battery secure under the hood so it doesn’t vibrate and move with bumps and bends. If it is moving around, the circuits can short.
  • Cleaning the terminals will also give your battery a longer life. The terminals are easy to clean and it will extend the life of your battery.
  • The general maintenance of your vehicle is also important to your battery life. If one moving part is out of commission, it can seriously tax your battery and shorten its lifetime.
  • Idling is not good for your battery, especially if you have lots of electronics on.
  • Test your battery frequently, so you know if it needs replacing or to detect another serious issue within your vehicle.