Our Guide to the Best 40V Lawn Mowers

The Practical Shortlist

A garden-first look at 4 options, organized around the job each one suits best.

1. 

   Best Overall

   Greenworks 40V 16-Inch Push Mower

   buyers comparing capacity, compatibility, included components and storage needs

   Our take ↓Check price for Greenworks 40V 16-Inch Push Mower (opens in a new tab)

2. 

   Best Alternative

   MZK 40V 16-Inch 2-in-1 Brushless Cordless Push Mower

   buyers who want a brushless motor and mulch-or-bag flexibility on a smaller lawn

   Our take ↓Check price for MZK 40V 16-Inch 2-in-1 Brushless Cordless Push Mower (opens in a new tab)

3. 

   Best Value

   KOMASTY 40V 16-Inch Cordless 2-in-1 Mower

   buyers comparing capacity, compatibility, included components and storage needs

   Our take ↓Check price for KOMASTY 40V 16-Inch Cordless 2-in-1 Mower (opens in a new tab)

4. 

   Also Consider

   13-Inch Cordless 40V Electric Lawn Mower

   very small yards, patios, or garden strips where deck width matters less than compact storage

   Our take ↓Check price for 13-Inch Cordless 40V Electric Lawn Mower (opens in a new tab)

Pick	Best for	Key spec	Price
Best OverallGreenworks 40V 16-Inch Push Mower	buyers comparing capacity, compatibility, included components and storage needs	16-inch deck	Check price for Greenworks 40V 16-Inch Push Mower (opens in a new tab)
Best AlternativeMZK 40V 16-Inch 2-in-1 Brushless Cordless Push Mower	buyers who want a brushless motor and mulch-or-bag flexibility on a smaller lawn	16-inch deck	Check price for MZK 40V 16-Inch 2-in-1 Brushless Cordless Push Mower (opens in a new tab)
Best ValueKOMASTY 40V 16-Inch Cordless 2-in-1 Mower	buyers comparing capacity, compatibility, included components and storage needs	16-inch deck	Check price for KOMASTY 40V 16-Inch Cordless 2-in-1 Mower (opens in a new tab)
Also Consider13-Inch Cordless 40V Electric Lawn Mower	very small yards, patios, or garden strips where deck width matters less than compact storage	13-inch deck	Check price for 13-Inch Cordless 40V Electric Lawn Mower (opens in a new tab)

Why Each Pick Made the Cut

Best Overall1 of 4

Greenworks 40V 16-Inch Push Mower on Amazon (opens in a new tab)

Greenworks 40V 16-Inch Push Mower is the better fit when buyers comparing capacity, compatibility, included components and storage needs.

Best for

buyers comparing capacity, compatibility, included components and storage needs

Why it made the shortlist

The intended use case is buyers comparing capacity, compatibility, included components and storage needs. The documented setup centers on 16-inch deck, 40V 4.0Ah battery, 160Wh included energy.

What separates it on paper is 16-inch deck. Its 40V 4.0Ah battery specification sits at the same documented level as the comparable picks in this 4-product comparison. Treat the battery platform and included charger as part of the fit, not just the headline number.

Before committing, account for the narrow deck and single included pack limit productivity on larger or overgrown lawns. Confirm whether the battery and charger are included with the exact package. Check platform compatibility and published runtime against the area or workload you need to cover.

Key dimensions & specs

• 16-inch deck
• 40V 4.0Ah battery
• 160Wh included energy
• Push drive

Pros

• +16-inch deck
• +40V 4.0Ah battery included

Cons

• −The narrow deck and single included pack limit productivity on larger or overgrown lawns.
• −Check storage space and local service access before buying.

Check price on Amazon for Greenworks 40V 16-Inch Push Mower (opens in a new tab)→

Best Alternative2 of 4

MZK 40V 16-Inch 2-in-1 Brushless Cordless Push Mower on Amazon (opens in a new tab)

The strongest case for MZK 40V 16-Inch 2-in-1 Brushless Cordless Push Mower is 16-inch deck with brushless motor.

Best for

buyers who want a brushless motor and mulch-or-bag flexibility on a smaller lawn

Why it made the shortlist

For buyers who want a brushless motor and mulch-or-bag flexibility on a smaller lawn, this is one of the more relevant configurations in the shortlist. The documented setup centers on 16-inch deck, 40V battery platform, brushless motor.

Its case starts with 16-inch deck with brushless motor. Its 40V battery platform specification sits at the same documented level as the comparable picks in this 4-product comparison. Treat the battery platform and included charger as part of the fit, not just the headline number.

The trade-off worth checking first is check included watt-hours and charger specs before buying. Confirm whether the battery and charger are included with the exact package. Check platform compatibility and published runtime against the area or workload you need to cover.

Key dimensions & specs

• 16-inch deck
• 40V battery platform
• Brushless motor
• 2-in-1 mulch and bag

Pros

• +16-inch deck with brushless motor
• +2-in-1 mulching and bagging

Cons

• −Check included watt-hours and charger specs before buying.

Check price on Amazon for MZK 40V 16-Inch 2-in-1 Brushless Cordless Push Mower (opens in a new tab)→

Best Value3 of 4

KOMASTY 40V 16-Inch Cordless 2-in-1 Mower on Amazon (opens in a new tab)

Choose KOMASTY 40V 16-Inch Cordless 2-in-1 Mower for two 40V batteries and two chargers included.

Best for

buyers comparing capacity, compatibility, included components and storage needs

Why it made the shortlist

KOMASTY 40V 16-Inch Cordless 2-in-1 Mower is positioned for buyers comparing capacity, compatibility, included components and storage needs. The documented setup centers on 16-inch deck, two 40V 4.0Ah batteries, two chargers included.

The feature doing most of the work here is two 40V batteries and two chargers included. Its Two 40V 4.0Ah batteries specification sits at the same documented level as the comparable picks in this 4-product comparison. Treat the battery platform and included charger as part of the fit, not just the headline number.

Confirm whether the battery and charger are included with the exact package. Check platform compatibility and published runtime against the area or workload you need to cover.

Key dimensions & specs

• 16-inch deck
• Two 40V 4.0Ah batteries
• Two chargers included
• 5-position height adjustment

Pros

• +Two 40V batteries and two chargers included
• +5-position height adjustment

Check price on Amazon for KOMASTY 40V 16-Inch Cordless 2-in-1 Mower (opens in a new tab)→

Also Consider4 of 4

13-Inch Cordless 40V Electric Lawn Mower on Amazon (opens in a new tab)

The strongest case for 13-Inch Cordless 40V Electric Lawn Mower is 13-inch deck fits tight storage spaces.

Best for

very small yards, patios, or garden strips where deck width matters less than compact storage

Why it made the shortlist

For very small yards, patios, or garden strips where deck width matters less than compact storage, this is one of the more relevant configurations in the shortlist. The documented setup centers on 13-inch deck, 40V battery platform, cordless push drive.

Its case starts with 13-inch deck fits tight storage spaces. Its 40V battery platform specification sits at the same documented level as the comparable picks in this 4-product comparison. Treat the battery platform and included charger as part of the fit, not just the headline number.

The trade-off worth checking first is narrow deck means significantly more passes on anything beyond a small area. Confirm whether the battery and charger are included with the exact package. Check platform compatibility and published runtime against the area or workload you need to cover.

Key dimensions & specs

• 13-inch deck
• 40V battery platform
• Cordless push drive
• Compact size for small yards

Pros

• +13-inch deck fits tight storage spaces
• +Lowest weight class of the mowers compared here

Cons

• −Narrow deck means significantly more passes on anything beyond a small area.

Check price on Amazon for 13-Inch Cordless 40V Electric Lawn Mower (opens in a new tab)→

How We Built This Shortlist

Each pick was assessed across 4 criteria weighted for real-world use.

Battery platform and included energy

We compared included pack count, amp-hours, and the resulting nominal watt-hours instead of ranking mowers on the 40V label alone.

Deck width and yard fit

We matched deck width and mower weight against the yard sizes each model is realistically suited for, from patio strips to standard suburban lots.

Charging and drive workflow

We considered charger count, drive type (push vs. self-propelled), and how charging or cooling delays could interrupt a mowing session.

Documented specifications

We compared capacity, compatibility, included components, operating limits and warranty documentation.

What Matters Before You Choose a 40V Lawn Mower

Key buying criteria so you get the right fit the first time.

1. 01Normalize by watt-hours, not the voltage label

   Two 40V mowers can ship with different amp-hour packs. Multiply nominal volts by amp-hours to get an approximate watt-hour figure and compare that number, not the voltage printed on the box.

   Getting this wrong is one of the more common reasons a lawn mowers purchase disappoints once it actually arrives, since normalize by watt-hours, not the voltage label affects real day-to-day use in a way marketing photos and bullet points don't always make obvious.

2. 02Runtime claims assume matched grass conditions

   Manufacturer runtime figures are typically measured under favorable, dry, moderate-length grass. Tall, damp, dense, or freshly overgrown grass draws more current and shortens the same battery's usable runtime.

   This is the kind of detail that looks minor in a spec list but shapes how satisfied you actually are with a lawn mowers weeks after buying, since runtime claims assume matched grass conditions plays out differently in daily use than it does on paper.

3. 03Charging and thermal delay

   A depleted pack does not always accept a full-speed charge immediately, especially after a hot mowing session. Factor in charger wattage, port count, and any cooling delay before the next charge cycle can start.

   Compare how each lawn mowers in this roundup actually handles charging and thermal delay rather than assuming they're interchangeable on this point, since the listings here differ on it more than the headline specs suggest.

4. 04Mower weight and deck performance vs. voltage marketing

   A higher voltage number does not guarantee a better cut or an easier push. Deck design, wheel size, and overall mower weight affect maneuverability and cut quality as much as the battery platform does.

   Mower weight and deck performance vs. voltage marketing is easy to overlook next to flashier specs, but it's frequently the difference between a lawn mowers that fits your routine and one that quietly becomes a hassle.

   Confirm the exact detail on mower weight and deck performance vs.

5. 05Replacement-pack and ecosystem cost

   Some ecosystems share packs across multiple tools, which can lower long-term cost, while others sell mower-only packs at a premium.

   Getting this wrong is one of the more common reasons a lawn mowers purchase disappoints once it actually arrives, since replacement-pack and ecosystem cost affects real day-to-day use in a way marketing photos and bullet points don't always make obvious.

Match a 40V Lawn Mower to Your Garden or Yard

Before You Bring One Home