5 Best Lawn Mower Battery Reviews for 2021

HomeLawn & Yard Care5 Best Lawn Mower Battery Reviews for 2021

Lawnmowers play a pivotal role in maintaining and up-keeping the lawns. So, to keep them going, you need good batteries that will give them the necessary support. To avoid anything wrong happening with the mowers, you need to research and find the best lawn mower battery. There is a wide range of batteries available in the market. However, if you are looking for the most trusted battery for lawnmower, you need to take your time and conduct proper due diligence. However, make sure that you choose only the most reliable lawn mower battery so that you can have the best time and gardening experience as a whole.

How To Choose The Right Lawn Tractor Battery That Lasts For Years?

Most lawn tractors in the market today are either electrically driven or battery-powered. But most people opt for the battery-powered ones because they can be moved as far as needed. Unlike the electrically driven lawn mowers, they don’t need to be connected to any power outlet but are rather powered by their batteries. That means their only issue that could hinder their performance is the lawnmower battery they are using. That is why the riding lawn mower battery is a very sensitive purchase to make. Getting the right riding lawn mower tractor battery that perfectly suits the equipment means more efficiency when cutting grass. It also prevents possible damage to the equipment in the long run. What are some of the top 5 best lawn tractor batteries in the market today?

Heavy-duty tractor batteries

Mighty Max Battery 12V 35AH SLA Battery John Deere Tractor Riding Mower
One of the biggest reasons Mighty Max Battery is popular with most buyers is its high performance and durability. It works well for all models of John Deere lawnmowers. The sealed lead-acid(SLA) battery is designed such that it can resist both shock and vibration. The design also allows it to be mounted on any position –except the top side – and still work optimally. The riding mower battery has a wide range of operating temperatures. That means it can perform both at low and high temperatures. The tractor battery, thanks to AGM technology, is spill-proof, spill-proof, and has a high discharge rate. That means at the end of the day, it will offer the end-user a longer service life and reduced chances of damage to their equipment.

  • Amperage: 35 AH
  • Voltage: 12 Volt
  • Warranty: 1 Year
  • Dimensions: 7.68 in x 5.16 in x 7.13 in
  • Weight: 23.15 Lbs


  • Easy to install
  • Vibration and shock-resistant
  • Long shelf and service life
  • Heavy-duty.
  • Sealed off with AGM and thus can be mounted in any position.
  • High discharge rate.
  • Requires no maintenance.


  • None

Chrome Battery Rechargeable 12V 35Ah Sealed Lead Acid Deep Cycle U1 Replaces Husqvarna YTH2448 Lawn Tractor Battery
This tractor battery from Husqvarna is an especially more popular choice when it comes to gardening tools and equipment. Just like the Mighty Max’s battery, this battery is also known for its durability and reliability. The riding lawn mower battery is designed to be a versatile fit that can fit in well in a variety of applications ranging from mobile scooters to alarm systems. It also features Absorbed glass mat technology(AGM) that reduces the need for maintenance as well as making the lawn tractor battery spill-proof. Besides, the battery features fiberglass mat separators along with high cell compression that not only helps prolong its shelf but also helps deliver optimal resistance to vibration.

  • Amperage: 35Ah
  • Voltage: 12 Volt
  • Dimensions: 7.7 x 5.1 x 6.5 inches
  • Warranty: 18 months
  • Weight: 26 Lbs


  • Leak-proof
  • Longest shelf-life
  • Maintenance-free
  • Affordable price


  • None

12V 35Ah Universal Battery for Tractor and Riding Mower
This battery is very similar to Mighty Max Tractor battery. It is a power box from the UPG brand that is also highly reliable and has a high capacity for storing more power. As a result, it leads to increased performance. It is also suitable for all John Deere garden and lawn machines. The rechargeable Sealed Lead Acid battery comes with a 12V, 35 Amperes rating, and can last for 20 hours after each full charge. The good thing about the battery is that it has no charge-loss effect even when connected to non-compatible equipment. For added protection, the battery comes with T3 connection terminals. Besides, the AGM technology makes it spill-proof by sealing in the acid and preventing it from fizzing out or leakage. Moreover, its outer casing is fortified with ABS plastic material. That way, it makes the battery shock-absorbent, highly durable, resistant to vibrations. It also makes it resistant to chemical attack should the battery be exposed to any chemicals.

  • Weight: 23 pounds
  • Dimensions: 8 inches by 5.2 inches by 7.1 inches.
  • Warranty: one-year warranty


  • Sealed off with AGM, making it spill-proof.
  • Requires no maintenance
  • Has longer-lasting life
  • Affordable
  • Fortified with ABS plastic casing for extra protection.


  • Relative heavy compared to other models


Toro Lawn Mower Battery #106-8397 BATTERY-12 V
This Casil’s battery replaces The B & B BP3-12 battery. It is a premium lawn mower tractor battery that works perfectly especially with Lawn-Boy mowers, Toro Lawnmowers, and AC and CyerPower units. The battery comes with Absorptive Glass Mat technology that helps absorb shock and protects it from external damage, especially from acid spills. It also ensures that it can be mounted in different positions and still work perfectly. The SLA technology ensures that the battery is spill-proof and leak-free. The reduced electrolyte leakage renders it maintenance-free and increases the longevity of the battery.

  • Voltage: 12V
  • Amperage: 3.4Ah
  • Construction: SLA, AGM.


  • SLA technology that allows for easy mounting
  • AGM technology that increases longevity
  • Highly stable performance
  • Maintenance-free
  • High-shock resistant case


  • Works well for smaller riding mowers.

ExpertPower EXP12200 12-Volt 20Ah with Threaded Terminals
This is one of the most affordable sealed lead-acid lawn tractor batteries out there. The battery is rechargeable and doesn’t lose charge over time and use. But, it might lose power if it is connected to the wrong equipment. The battery comes with a rating of 12 volts and 20 Amperes and has a threaded B1 terminal. That means it requires zero insertion force – which translates into maximum durability for the terminals. Besides, it also features the Absorbent Glass Mat technology(AGM) that keeps the acid tightly locked to prevent spilling or leaking during motion. The battery doesn’t require regular checking out and maintenance. It only requires to be kept in a clean dry area. But, overcharging it or connecting it to inappropriate equipment can destroy it. Moreover, the battery carries an ABS plastic fortified case that absorbs all the shocks. As a result, offering maximum protection from shock or exposure to acids.

  • Weight: 12.25 pounds.
  • Dimensions : 3 inches x 6 inches x 7.2 inches.


  • Highly affordable
  • Easy to install
  • Requires no maintenance
  • Can last for 20 hours after full charge


  • The amperage output not so impressive.

How To Pick The Right Lawn Tractor Battery?

Riding lawn mowers feature electric starting. It is a feature that makes it easier to start their larger engines, unlike push lawn mowers which are pull-started. Just like in automobiles, it is this riding lawn mower battery that makes it possible for the mower to start. If the battery is put to proper use and maintenance, it might last for over 3 years. It will even last longer in warmer climates. But, at some time, the battery will corrode or sulfate an as result, the output will gradually reduce over time. As a result, the ability to keep charge and start the mower will be reduced as well. That means the battery needs to be replaced. Selecting the perfect riding lawn mower battery is a tough decision. There are many models to choose from in the market today. Choosing the one that works perfectly can be a little daunting and overwhelming. But the trick always lies in narrowing down to the specific requirements of the lawn tractor and the lawn itself. Here are some of the factors that need to be considered before purchasing a new battery:

  • The position of the terminal

The terminal position is important when it comes to the installation of the battery to the lawnmower tractor’s electrical system. For example, group U1L riding mower batteries have their positive terminal on top of the battery, near the left corner. On the other hand, group U1R batteries have their positive terminals located near the right corner. Installing U1R battery in a riding lawn mower that requires a U1L battery may not work. The cables might not reach the terminals. Besides, stretching the cables could result in chafed insulation. As a result, it might cause a dangerous short-circuit problem. Go for a battery that only fits into the requirement of your mower.

  • Cranking Amps

All engines are not the same. The larger the engine, the harder it is to turn it. That makes the output of the battery another very critical factor you need to consider when selecting the battery. The riding mower battery output is measured in CCA (cold-cranking amps). This measure describes the output (current) the battery can deliver in 30 seconds at temperatures of 0 degrees. Choosing a battery with the optimum CCA will do the trick. Otherwise, a lower CCA output may not start the engine at all. And, if it succeeds at starting the battery, the power sucked by the equipment will overtax the battery’s own construction. As a result, it will wear it out faster. To keep the machine running effectively, the user needs to choose a battery with the proper power rating you’re your lawnmower.

  • The type of garden/lawn

The type and size of the garden will affect the choice of the lawn battery. Typically, most riding mower batteries can only service a lawn that is the size of the tennis court. Since the battery lasts between 20-30 minutes between charges, anything larger than a tennis court might not work unless there is a spare battery that would be swapped out mid-way through cutting the grass. Again, it is ideal in areas where it would not have to deal with taller grass or many undulations that reduce the efficiency of the battery but also reduce the battery average life span. The type of garden determines the output of the battery that needs to be purchased. It also determines whether or not the mower would need a spare battery.

  • Types of battery

There are different types of batteries that can be used on lawnmowers. There are those that prefer lead-acid batteries. But most of the time, the battle is always between Lithium-Ion and Nickel-Cadmium batteries. All of these types have their strong points and their areas of weakness especially when it comes to longevity and the power output. For example, NiCd batteries are a cheaper option but can also handle strenuous conditions without failing. The only challenge with these kinds of batteries is that they need to be fully discharged before recharging. If they are not fully discharged, they lose their powered density and that won’t reduce the amount of time they can hold power. On the other hand, Li-Ion batteries usually have a very higher power density and higher power output. Besides, these batteries have little maintenance needs. Unfortunately, such a lawn tractor battery charge capacity deteriorates after a few years of use. The choice of the batteries will depend on the specific needs and the user preferences for power out.

Lawn Tractor Battery: Frequently Asked Questions(FAQs)

  • How long should my lawn tractor battery last?

Just like any other equipment, batteries need to be protected from adverse weather conditions like winter and extreme temperatures (especially where are incidences of fire). The average life of the riding lawn mower battery that has been taken care of well is three about three years.

  • Are riding lawn mower batteries 6 or 12 volt?

Old land mower models – especially those manufactured before 1980 – are powered by 6-volt batteries. But, modern mowers use a 12-volt garden tractor battery

  • How to prevent riding lawn mower battery from damage while charging?

If batteries are not properly charged, they can be damaged. The trick is, you need to use a battery that matches the voltage of your battery. The most preferred chargers are those that output about 10 amps or less. Any charger that surpasses that output can damage your battery.

  • How do to check a lawnmower battery?

Most of the time, the battery is always located under the seat of your riding lawnmower. To access the battery, lift the seat. Then using a digital multimeter turned on and switched to “A” or “DC” most, the voltage of the battery can be tested.

Final Verdict

While these batteries are awesome in performance, The Mighty Max ML35-12 SLA Battery takes the crown as the best lawn tractor battery. It is basically a rechargeable, maintenance-free battery. Besides, the SLA and AGM technology ensures that the battery stays spill-proof and leak-proof. As a result, it can be mounted on any position, offer high performance and longer service.

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