The Best Lawn Mower Battery – Tested for Years

1. Unlimited Use

The very first benefit you'll when you have an extra lawn mower battery is that you don't have to worry about it running out of power. This means that you have no limits as to how long you can use your lawn mower. 

If it runs out of power, you can simply take off the drained battery and replace it with another fully charged battery.

2. Backup Power

Every one of us doesn’t want to be interrupted when we’re using our lawn mowers. Thankfully, this is just what an extra lawn mower battery does. It serves as a backup power.

So if for some reason your battery discharges or malfunctions, you always have a spare battery that you can put on your lawn mower.

With the help of an extra battery, your lawn mowing session wouldn’t surely be cut short.

3. Convenience

The other cool thing about having an extra lawn mower battery is that you have convenience by your side. This is because you can bring the battery with you as you are mowing the grass. 

You don’t need to go back and forth your recharging station, wait for a few hours until your battery recharges, and then go back again to the place you’re mowing. It helps you become more efficient in doing your lawn mowing session.

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#1. Mighty Max Battery ML18-12 4330198169 - Best Lawn Battery Overall

Similar to the ExpertPower EXP12180 below, the Mighty Max Battery ML18-12 4330198169 is a 12 Volt Sealed Lead Acid battery (SLA) that provides 18 Amp for the engine of your lawnmower.

However, in addition to lawn and garden tools, this rechargeable battery is usable in more applications such as consumer electronics, medical mobility, engine starters, electric vehicles, golf carts, power sports, and the list goes on.

Besides, this battery even does not require maintenance and comes with a higher discharge rate, deeper discharge recovery, and longer service life.

With the Absorbent Glass Mat (AGM technology), the battery can work in all extreme weather conditions. And the valve regulated design also improves the spill-proof capability.

If you are still questioning whether it will suit you or not, the product is covered by a 30-day money-back guarantee and a full 1-year warranty. So don't be afraid of anything if you are interested in it.

#2. ExpertPower EXP12180 12V18AH - The Runner-up

Although inferior to Mighty Max Battery ML18-12 4330198169 as we stated above, the Expert Power EXP12180 is still a very popular choice because of its reliability for the majority of lawnmowers.

For lawn tractor/lawn mower batteries, basic styling and design are always more favorable than unique ones since standard models are wider compatible and easier to install and use.

The case is constructed of solid ABS plastic, which is a non-conductive and durable material. It will seal the electro inside securely and prevent acid from spilling.

Besides, the ABS case will also reduce weight while still withstanding external impacts such as dropping, falling, vibration, shock, and so on.

Apart from the physical risks above, the battery is also resistant to adverse temperatures. The innovative AGM Technology (Absorbed Glass Mat) allows the battery to be cool in hot conditions and not frozen in cold weather.

As with its fundamental purpose, the 12 Volt unit delivers 18 Amp for most lawnmowers to launch and operate smoothly. Indeed, you will not get headaches when using and maintaining this easy-going battery.

#3. Universal Power Group UPG-D5722(KIT4-1) - Best Lawn Battery for High Amperage

If you are looking for a high-amperage rechargeable battery for your heavy-duty lawnmower, the Universal Power Group UPG-D5722(KIT4-1) can stop your days of searching.

This replacement battery boasts an unparalleled 35AH capacity, which is twice as much as the capacity of the two batteries above. If your appliance is compatible, the battery promises to turn it into a brawny beast.

Luckily, as we tested, this battery was applicable to the majority of lawnmowers. Plus, its installation is straightforward and will not cause you any difficulty.

You can also find the ease of use after you replace your old battery with this. It might be safely mounted in various positions and angles, and will not add up the weight dramatically.

Most importantly, the unit is well-made so that it can cope with mishandling, environmental impacts, vibrations, etc. The sturdiness maintains its optimal performance and consistency.

Nonetheless, a remarkable downside of this item is its high price. Its cost is nearly double in comparison with an average lawn mower/lawn tractor battery in the market.

#4. Weize NT12-18.0AH Battery - Best Affordable Battery

Like most options in this list, the Weize NT1 2-18.0AH is a Sealed Lead Acid (SLA) lawn tractor/lawn mower battery. However, it stands out from the crowd as a very compact and affordable choice.

This battery comes with a modest size of 7.13 x 3.03 x 6.57 inches and weighs only 12.28 pounds. Hence, it will not take up much space inside your lawnmower or bring about heaviness.

Nevertheless, except for the included screws, customers will not receive any mounting or wire harness from installing the replacement battery. So the chances are that you would have to buy them separately if there is none in your home.

Some familiar strong points of this model that we can find in many other WEIZE batteries are its rugged construction, no maintenance requirement, and the AGM Technology (Absorbed Glass Mat) for working in a wider temperature range.

For reference, you can use this battery for your lawn and garden tools, emergency systems, scooter, wheelchair, electronics, and many more.

#5. ACDelco ACDB24R Advantage AGM Automotive BCI Group 51 Battery - Best High-end Battery

The name of ACDelco may be so famous as a true GM OE (General Motors Original Equipment) parts brand that perhaps we do not need to introduce it to most readers here.

The company has got more than 100 years of experience, manufactured, and innovated nearly one hundred thousand GM OE and other components. As a result, you can totally depend on its reputation.

We cannot deny the fact that the ACDelco ACDB24R rechargeable battery is super-pricey. However, given that it can fit as a genuine battery for dozens of devices and vehicles in your life, it is quite worthy.

Professionals who have tested all kinds of batteries from a low-end to a high-end one have confirmed that this high-quality battery is able to fit and function well in your lawnmower, making a great value.

What makes this one a better option than unbranded batteries is the wonderful aftermarket policies. Upon purchase, customers will receive a 24-month limited warranty without geographical restrictions (it means that this policy is applied in all countries over the world).

#6. UpStart Battery UB12100-S-2BATT-DL72 - Best Lawn Battery for Neuton Lawnmowers

If you are using a Neuton lawnmower, then the UpStart Battery UB12100-S-2BATT-DL72 is a perfect replacement battery you are looking for.

Although the 10Ah capacity is a little lower than other models, its compactness, lightweight, and affordability are fine compensations. If you only use a light-duty lawnmower to trim your little yard, feel free to tradeoff.

Despite its low price, the unit still ensures its quality and performance to work in chilling weather. Starting your appliance will be instant, even during the coldest days.

What's more, the battery is quickly charged yet highly power-saving. Therefore, you will not waste much time and money recharging this one.

The solid materials constitute a firm structure, which can handle high-impact bangs, vibrations, motions, etc. From the terminals to the cases, all of them are as rough as stone.

There is no need for users to worry about the battery putting or chipping away. And the tight contact of the battery with the plugs and connectors is always maintained.

#7. Chrome Battery 12V 35AH Deep Cycle SLA Replacement Battery - Best Lawn Battery for Safety

As its name suggests, the Chrome Battery 12V 35AH rechargeable battery delivers a 35 amp hour, just like the Universal Power Group UPG-D5722(KIT4-1).

However, this one is even a bit more compact and cheaper quite remarkably. Thereby, it is the ideal replacement battery for plenty of appliances, ranging from mobile scooters and lawn mowers to security systems.

These sealed lead-acid batteries are also equipped with Absorbed Glass Mat technology to prevent the acid inside from spilling and require the least maintenance.

The warranty policy of this product is also better than the Universal Power Group UPG-D5722(KIT4-1) with up to 18-month manufacturer warranty and 30-day refund for unsatisfied customers.

We have seen more strong points in this battery than the #3 battery, so most readers here will begin to wonder why this is not the best lawn tractor/lawn mower battery for high amperage instead of the #3.

Well, everything has its own reason. In fact, we find the Chrome Battery 12V 35AH not as durable as the Universal Power Group UPG-D5722(KIT4-1).

#8. POWERSTAR CP1232 # 106-8397 BATTERY - Best Battery for Toro Lawn Mowers

If you are a loyal fan of Toro lawn tractors/lawn mowers, the POWERSTAR CP1232 is an indispensable product in your garage.

Yet, fortunately, this does not mean that it will not work well for other models. Reliability is what this one is known for in forums of lawn and garden tools.

We installed it directly into our trimmers without any modification, and the high performance was very consistent for months of the test.

On rugged terrains and in harsh weather, the unit also handles impressively all the vibrations, abrasion, bangs, rain, high humidity, low temperature, and so on.

We also love its terminals that allow a tight connection and quick charge. If you forget to charge it fully before your lawn mowing session, you can wait for 30 minutes, which is not very long.

#9. Mighty Max Battery ML35-12 SLA 4330198213 - Best Battery for Heavy-duty Mowers

The Mighty Max Battery ML35-12 SLA 4330198213 batteries are engineered explicitly for John Deere lawn tractors, John Deere riding lawn mowers, and other John Deere related attachments.

You may not believe this at first due to its small size. How can this tiny battery be an ideal battery replacement for heavy-duty John Deere lawn tractors and John Deere riding lawn mowers?

Let us explain. Despite the modest size, this battery is incredibly powerful and efficient with 35AH current. It is also well-sealed to be fully spill-proof. Then, you can mount this one on any appropriate position and ride your lawn tractor/lawn mower on any terrain.

Even in the cold weather, users will never meet any trouble because of hard starting their John Deere vehicles. When the outside temperature was 2°C, we were able to launch the engine in seconds.

Feel assured with your investment since you will receive a 30-day refund policy and a full one year warranty for all components. Should anything happen, you will be supported by the excellent customer service of the brand.

#10. Odyssey 65-PC1750T Automotive and LTV Battery - Best Battery for Warranty

The foremost thing of this rechargeable lawn tractor/lawn mower battery that we want to show you is its limited 3-year warranty and 4-year full replacement warranty.

It is able to reserve power in up to 145 minutes, which is sufficient for heavy-duty machines, and you can mow your whole massive lawn in a single session.

Apart from the long run time, its lifespan is also very impressive. It is estimated that the battery can last from three to ten years, depending on your usage and maintenance.

Its cycle life is 70% longer in comparison with standard deep cycle batteries (approximately 400 cycles at 80% depth of discharge) while still ensuring high voltage stability for long durations.

Recharging time is also a strong point of this unit, too. You can charge this one entirely in a few hours, nearly as long as the time to discharge 100% the power.

About temperature tolerance, it can work anywhere in the temperature range from -40°F  (-40°C) to 113°F (45°C).

1. Performance of the Battery

When it comes to the quality of a lawn mower/lawn tractor battery, the first thing that most people think about must be its charging and discharging duration.

No one wants to pause their mowing session again and again to recharge the battery of their lawn mowers. Also, this inconvenience would be even more annoying if a battery with a deep cycle runs out rapidly yet is charged too slowly.

2. Condition Resistance

There is no doubt that you will use your lawn tractor/lawn mower outdoors instead of indoors, so its batteries ought to endure well when exposed to outside conditions.

Hence, a premium lawn mower/lawn tractor battery has to be resistant to both overheating (even during a deep cycle) and freezing temperatures, high humidity, and other extreme weather effects, etc.

Moreover, you may want the battery to be shock-proof (for protection against vibrations), and chemical-proof (if you spray chemicals on your lawn or put any chemical near the lawn mower in the storage), too.

3. The Voltage of the Battery

It is mandatory for you to inspect the voltage of the new battery thoroughly before buying it. For the majority of lawn mowers, the suitable voltage is typically 12-volt, although there are also some batteries with a higher voltage, such as 36 or 40 volts.

The higher the voltage, the stronger the battery is. Nonetheless, you should still buy new batteries with a voltage in accordance with the technical requirement of your lawnmower.

4. Mounting Positions of the Battery

Before you rush to a decision, make sure that the new lawn mower/lawn tractor battery is mountable on your current lawnmower.

Inspect the mounting positions available on the lawn tractor/mower and collate these spots to the connectors of the new battery to find out whether it can fit.

Apart from ensuring mount-ability, you also need to make sure that the battery will not spill, swing, or fall out while you are riding your lawnmower.

5. The Battery Construction

The golden age of metal plates dipped in sulfuric acid is gradually over. Today, modern lawn tractor/mower batteries usually feature calcium plates to prevent the charge from being dissipated quickly.

These models will be more resistant to corrosion, vibration, and impact, thus more long-lasting and require less maintenance. For durability, batteries with AGM Technology are the best since they never spill.

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Are Battery Lawn Mowers Any Good?

In our opinion, battery-powered lawnmowers/lawn tractors are a great choice for those whose lawn is small or medium.

They are highly quiet, compact, environment-friendly, hassle-free, and do not cost you much to purchase and use in the long run.

Meanwhile, they are still able to work on different terrains and come with a lot of excellent features that other types of trimmers offer.

What is the Life of a Lawn Mower Battery?

The life of a lawn mower/lawn tractor battery is the duration that it can provide power for the lawnmower before you need to replace it. This factor is typically determined by the power charging and discharging cycles of the battery.

For example, a lithium-ion battery can last for approximately 500 cycles, whereas a lead-acid battery often lasts for around 300 cycles.

When Should I Replace My Lawn Mower Battery?

You do not necessarily replace the batteries only when they are completely broken down. You may have to substitute them in the following cases:

Are All Lawn Mower Batteries the Same?

Of course not. For example, as we explained above, a lithium-ion battery can last much longer than a lead-acid battery.

Moreover, different models of batteries can vary about input and output capacity, voltage, durability, protection case, integrated technologies, and so on.

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