Battery technology at this voltage provides strong, sustained power for medium to large yard sizes. It means you can finally ditch the gas can and extension cords for good. A modern 40 volt lawn mower delivers the torque you need to tackle thick grass without stalling. You’ll get a clean, even cut on each pass, which is a huge win for your lawns appearance.
But is it right for your specific yard? We tested a top model to see how it handles real-world conditions. From runtime to bagging performance, here’s everything you need to know before making your choice. Let’s dive into the details.
Product Comparison Table: 9 Best 40 Volt Lawn Mower
| Image | Why We Like This Product | Editor’s Rating | |
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Greenworks 40V 16″ Cordless Lawn Mower, Ultra-Light Push Mower…
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9.7 |
Read Review |
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Greenworks 40V 21″ Self-Propelled Cordless Lawn Mower – Brushless…
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9.4 |
Read Review |
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MZK 20V 13″ Electric Lawn Mower, Brushless Cordless Lawn…
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9.2 |
Read Review |
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EWORK 40V Electric Lawn Mower Cordless, 14″ Electric Push…
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8.9 |
Read Review |
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MZK 40V 16″ Electric Lawn Mower, 2-in-1 Brushless Cordless…
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8.6 |
Read Review |
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40V Cordless Lawn Mower, Electric Battery Powered 4.0Ah Walk…
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8.4 |
Read Review |
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WORX 14″ Cordless Lawn Mower, 2 in 1 Electric…
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8.1 |
Read Review |
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WORX Nitro 16″ Cordless Lawn Mower, 2 in 1…
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7.9 |
Read Review |
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STEELITE 40V 17-inch Electric Lawn Mower and 12-Inch Cordless…
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7.6 |
Read Review |
Quick Review For Top 9 40 Volt Lawn Mower
Greenworks 40V 16" Cordless Lawn Mower, Ultra-Light Push Mower with 4.0Ah Battery & Charger(75+ Tool Compatibility, 45Min Runtime)
The Greenworks 40V 16″ Cordless Lawn Mower is designed for homeowners who want a simpler, cleaner way to care for their lawn. If you have a yard up to about a half acre, this mower offers a compelling blend of gas-like power without the typical gas mower headaches. It’s part of a full cordless tool system, which is a big part of its value.
Let’s start with the power.
The mower comes with a 4.0Ah battery that provides up to 35 minutes of continuous runtime, enough to handle a decent-sized lawn on a single charge. It recharges fully in about two hours. The performance is strong and consistent, cutting through grass without the noise, fumes, or constant maintenance of a gas engine.
You’ll notice the quiet operation and the fact you never have to buy gas or oil again, which can lead to significant savings over time.
One of the most immediate benefits you’ll appriciate is its weight. This mower is built with an ultra-lightweight design, making it about 35% lighter than many standard cordless mowers. Combined with its 16-inch cutting deck, this makes pushing and maneuvering around yard obstacles, garden beds, and tight corners remarkably easy.
Greenworks 40V 21" Self-Propelled Cordless Lawn Mower – Brushless Motor, 5.0Ah Battery & Charger(75+ Tool Compatible)
The Greenworks 40V 21″ Self-Propelled Cordless Lawn Mower is designed to simplify your lawn care routine without the hassles of gas or cords. It’s a robust system that gives you the freedom to mow on your schedule, offering a clean, quiet cut that won’t disturb the peace of your neighborhood.
At its core is a powerful brushless motor.
This technology is key for efficiency, providing longer runtime from the included 5.0Ah battery and delivering consistent torque for a reliable cut, even in thicker grass. You’ll notice it operates significantly quieter than traditional gas mowers—about three times quieter—which is a major plus for early mornings or late evenings.
The 21-inch steel deck is durable and provides a wide cutting path to help you finish the job faster.
Mowing uneven or sloped areas becomes much easier with the self-propelled rear-wheel drive. You can ajust the speed to match your walking pace, from a slow, detailed trim to a quicker pass over open areas. This feature reduces fatigue and gives you maximum control, letting you guide the mower instead of pushing it.
MZK 20V 13" Electric Lawn Mower, Brushless Cordless Lawn Mower with 4-Position Height Adjustment, Walk-Behind Push Mowers with 8 Gallon Grass Bag, 2 x 4.0Ah Batteries & Charger Included, LM13B8, Red
The MZK LM13B8 20V 13″ Cordless Lawn Mower is designed to make maintaining a neat lawn a straightforward and less strenuous task. It’s a self-contained system that comes with two batteries and a charger, so you can start mowing right out of the box without needing to purchase anything extra.
At the heart of this mower is its brushless motor. This type of motor is known for its efficiency and durability.
It draws power intelligently from the included pair of 4.0Ah batteries, which helps to extend your runtime so you can cover more ground on a single charge. Because it’s brushless, the motor also requires less maintenance over time and runs quieter than traditional alternatives, which is a nice bonus for you and your neighbors.
You’ll appreciate the 13-inch cutting deck. This width is a practical size for most suburban yards, allowing you to cut a generous swath with each pass.
It significantly reduces the number of trips back and forth across your lawn, saving you time and effort. The attached 8-gallon (30-liter) grass bag is spacious, meaning you can collect a lot of clippings before you need to stop and empty it. This keeps your lawn looking tidy as you work.
Getting the right cut for your grass is simple with the four-position height adjustment. You can set the cutting height anywhere from 1.2 to 1.5 inches.
EWORK 40V Electric Lawn Mower Cordless, 14" Electric Push Mower with 2×4.0Ah Batteries & Charger, 3800RPM Motor, 6-Height Adjustment, 21Lbs Lightweight Battery Powered Lawnmower for Garden, Small Yard
The EWORK 40V Electric Lawn Mower Cordless is designed to make maintaining a small to medium yard a simpler, quieter task. It’s a battery-powered push mower that aims to combine power with practical, user-friendly features, all without the hassle of a cord or the noise of gas. Power comes from two included 20V 4.0Ah lithium-ion batteries, which together create a 40V system. This setup provides a solid runtime and enough consistent power for typical residential mowing.
The motor spins the 14-inch blade at up to 3800 RPM, which is capable of handling thicker grass without bogging down. A significant advantage here is the quiet operation; it’s much more peaceful than a gas mower, which your neighbors will appreciate. You have good control over your lawn’s appearance with the six-position single-lever height adjustment. This lets you choose a cutting height from about 0.86 inches for a tight cut to 2.44 inches for letting the grass grow a bit longer.
The 14-inch cutting width is manageable for navigating around garden beds, trees, and other obstacles in a smaller yard. The mower collects clippings in a 9-gallon rear bag, helping to keep your lawn tidy as you go. One of the most noticable benefits is its lightweight build. At just 21 pounds, it’s significantly easier to push and maneuver than many heavier models.
MZK 40V 16" Electric Lawn Mower, 2-in-1 Brushless Cordless Lawn Mower, Walk-Behind Push Mowers with 5-Position Height Adjustment, 2 x 4.0Ah Batteries & Charger Included, LM16B011
The MZK 40V 16″ Electric Lawn Mower, model LM16B011, is designed to be a straightforward and capable tool for maintaining your lawn without the hassle of gas or cords. It’s a complete kit that comes with everything you need to get started right away, aiming to make lawn care simpler and more efficient.
At its core is a high-performance brushless motor. This type of motor is built to last and operates at up to 3400 RPM for a clean, consistent cut.
Because it’s brushless, it experiences less wear and tear over time compared to traditional motors, which means more reliable performance season after season. It also starts with a simple 2-step safety process to prevent any accidental startups, giving you peace of mind.
Power comes from two included 40V 4.0Ah lithium batteries. With both batteries fully charged, you can expect up to 45 minutes of runtime, which is typically sufficent for small to medium-sized lawns.
Having two batteries is a key advantage; if one runs out, you can quickly swap in the second to keep going without a long wait. The dual-port charger lets you charge both batteries at the same time. Remember, actual runtime can vary depending on how thick your grass is and the terrain your mowing.
The mower offers a 16-inch cutting swath, allowing you to cover ground efficiently.
40V Cordless Lawn Mower, Electric Battery Powered 4.0Ah Walk Behind Lawnmower, 17” Cutting Width, 6-Position Height Adjustment, Bagging & Mulching Model, for Garden/Patio/Yark
The GreenWorks 40V Cordless Lawn Mower is designed to make maintaining your yard a simpler, more straightforward task. It combines the freedom of cordless operation with the practical power needed for a typical suburban lawn, aiming to remove common frustrations from your weekend chores. A key feature of this mower is its 17-inch cutting deck.
This width allows you to cover more ground with each pass compared to narrower models, making it a efficient choice for medium-sized lawns up to about 10,000 square feet. The goal is a clean, uniform cut that leaves your grass looking neat and professionally trimmed. It’s powered by a brushless motor and two 20V 4.0Ah lithium-ion batteries, which together provide the equivalent of 40V of power.
This setup delivers up to 40 minutes of consistent runtime on a single charge, which should be ample for most lawns without the worry of the mower dying halfway through the job. You won’t be dealing with the hassle of a cord or the fumes and noise of a gas engine. You have control over your lawn’s appearance with six different height adjustment settings. A simple lever lets you raise or lower the deck to find the perfect cutting height for your grass type and seasonal preferences.
WORX 14" Cordless Lawn Mower, 2 in 1 Electric Mower Cuts Quietly, Compact & Lightweight Push Lawn Mower with 6-Position Height Adjustment for Small Yards, 2 Batteries & Charger Included, WG779
The WORX WG779 14″ Cordless Lawn Mower is designed to make maintaining a small yard straightforward and efficient. It’s a compact, electric mower that focuses on simplicity and user-friendly operation from start to finish.
Power comes from two 20V 4.0Ah batteries that combine to deliver 40V of cordless energy, enough to handle up to about an eighth of an acre on a single charge. Starting is simple—just press a button and pull the bail handle, no cord pulling required.
The included dual charger lets you power up both batteries at once, getting you back to mowing quickly. A handy charge-level indicator on the mower keeps you informed about your remaining power, so your less likely to be caught off guard.
One of the standout features is the Intellicut system. This patented technology uses a sensor to automatically adjust the mower’s cutting speed based on grass thickness.
It increases power for dense patches to prevent bogging down and slows in thinner areas to conserve battery life, aiming for a consistant cut across your lawn. The 14-inch cutting deck is narrow enough to maneuver easily around tight spaces and garden beds. At under 30 pounds, its lightweight build reduces fatigue, making it easier to push, especially on slopes.
You have control over your lawn’s look with the single-lever, 6-position height adjustment.
WORX Nitro 16" Cordless Lawn Mower, 2 in 1 Electric Mower with with Brushless Motor, Lightweight Push Lawn Mower for 1/4 Acre, 2 Batteries & Charger Included, WG737
The WORX Nitro WG737 16″ Cordless Lawn Mower is a versatile, battery-powered tool designed to simplify lawn care for properties up to a quarter acre. It’s built around a efficient brushless motor that provides a significant boost in power and runtime compared to older models, ensuring you can finish the job on a single charge with the included batteries.
One of it’s standout features is the IntelliCut technology. This smart system uses sensors to detect grass density.
It automatically increases power to push through thick patches and reduces it for thin areas, which optimizes battery life and gives you a consistent cut. You won’t have to constantly adjust settings yourself.
This mower offers a convenient 2-in-1 function for bagging or mulching. You can attach the spacious collection bag to keep your lawn tidy, or use the mulch plug to finely chop clippings and return nutrients back to the soil.
The specialty mulch blade is designed to enhance both of these tasks, creating smaller clippings for better bag filling and faster decomposition when mulching.
Adjusting the cut is straightforward with the single-lever height adjustment. One lever controls all four wheels across six positions, letting you quickly choose a cutting height between 1.5 and 3.5 inches. The mower itself is notably lightweight and compact, thanks to its high-strength polymer deck.
STEELITE 40V 17-inch Electric Lawn Mower and 12-Inch Cordless String Trimmer Combo with 2×4.0Ah Batteries and Dual Chargers
The STEELITE 40V 17-inch Electric Lawn Mower and 12-Inch Cordless String Trimmer Combo with 2×4.0Ah Batteries and Dual Chargers is designed to handle your lawn care with cordless convenience. This kit gives you two essential tools that share a common power system, which means you can tackle your whole yard without the hassle of gas, oil, or a power cord.
At the heart of the mower is its dual-battery setup and brushless motor.
It runs on two interchangable 20V 4.0Ah batteries, providing up to 30 minutes of mowing time depending on your grass thickness and terrain. The high-efficiency brushless motor spins at 3400 RPM for reliable cutting power and is built to last longer than traditional motors with less maintenance. You get two chargers as well, so you can charge both batteries simultaneously and keep the workflow going.
The 17-inch cutting deck offers practical flexibility.
A single lever adjusts the cutting height across six positions, from about 1 inch to just under 3 inches, letting you find the perfect setting for your lawn’s health. The mower also functions as a 2-in-1 system. You can install the included mulch plug to finely chop clippings and return nutrients to the soil, or attach the 40-liter collection bag for a clean, tidy finish. It’s all about giving you the choice.
User-friendly design makes this mower a breeze to use.
40 Volt Lawn Mower Buying Guide
Assess a 40-volt mower by its system’s battery compatibility and amp-hour rating. A higher Ah means longer runtime, letting you finish more of your lawn on a single charge. But teh real win is when that same battery fits your other tools, like a trimmer or blower. It saves you money and hassle in the long run.
Your Lawn’s Size and Terrain
How big is your yard? For a small, flat plot, a basic model will do just fine. But if you have a larger area or slopes, you’ll need a mower with more power and a bigger battery capacity. Think about thick grass, too. A mower with adjustable speed settings can power through tougher patches without stalling.
Cutting Deck Width and Adjustability
A wider deck cuts a bigger swath, reducing the number of passes you make. This is a huge time-saver for bigger lawns. Also, check the height adjustment. Is it a single lever for all wheels, or do you fiddle with each one individually? The single-lever system is much more convenient for quick changes.
Mulching and Bagging Capabilities
Do you prefer a crisp, clean look or a natural, fertilizing mulch? Most 40-volt mowers offer multiple modes. A good mulching system finely chops clippings and returns them to the soil. If you like to bag, check the ease of attachment and the bag’s capacity. A small bag means frequent stops to empty it, which gets old fast.
Ease of Use and Storage
Is it lightweight and easy to maneuver around trees and flower beds? Foldable handles are a must for compact storage in your shed or garage. Also, consider the start mechanism—a simple button is far preferable to yanking a cord. After a long season, you’ll appreciate these thoughtful features that make the job just a bit simpler.
Frequently Asked Questions About 40 Volt Lawn Mower
What can a 40 volt mower handle?
A 40 volt mower is great for most average-sized lawns. It can typically handle up to about a third of an acre on a single charge. It works well on flat or gently sloped terrain and cuts through standard grass types with ease.
How long does the battery last?
Run time varies by model and grass conditions. Most 40 volt batteries last between 45 to 60 minutes per charge. That’s usually enough for a typical yard. Having a spare battery can be a big help for larger areas.
Is it as powerful as a gas mower?
For most homes, yes. A 40 volt mower provides plenty of power for routine mowing. You won’t have the fumes or loud noise of gas. It starts with a simple button press, which is a huge plus. It might struggle with very tall, wet grass though.
What about maintenance?
Maintenance is much simpler than a gas mower. There’s no oil, spark plugs, or fuel to deal with. You just need to keep the blade sharp and occasionally clean the deck. The battery requires the most care—store it in a cool, dry place.
How long does the battery take to charge?
A full charge usually takes a few hours, often around 60 to 90 minutes for some models. It’s best to plan your mowing and charge the battery right after. That way, it’s always ready for you when you need it.
Can it mulch and bag?
Most 40 volt mowers offer multiple options. They usually include mulching, side-discharge, and bagging capabilities. You can choose based on your preference for clippings. Switching between modes is generally straightforward.
Are they expensive to operate?
Not really. After the initial purchase, costs are low. You only pay for the electricity to charge the battery. You save a lot of money on gas and annual engine maintenance over time. The batteries themselves are the main future cost when they eventually need replacing.
Where should I store it?
Store the mower and its battery indoors if you can. A garage or shed is perfect. Extreme cold or heat can shorten the battery’s lifespan. Just make sure the storage area is dry to prevent any corrosion.
Our Verdict
A 40V battery system strikes a great power-runtime balance, which is central to teh value of these final picks. You get the muscle to handle thick grass without the hassle of gas or a heavy cord. For most suburban lawns, it’s the sweet spot. You won’t be left constantly checking a battery gauge, and you’ll have plenty of power to finish the job efficiently. It’s a straightforward upgrade that makes lawn care simpler.
When choosing your ideal 40 volt lawn mower, consider your yard’s specific layout and size. Pairing it with other tools from the same battery platform can be a huge advantage, letting you swap a single battery between your trimmer, blower, and mower. This creates a streamlined, clutter-free system for all your yard work. Ultimately, this category offers a fantastic blend of convenience and performance, giving you a clean cut and your weekends back.