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Finding the best greenworks gas lawn mowers requires checking the published specs for each model. We compared 3 options based strictly on the data provided in the listings. The Greenworks 80V 21-Inch Push Lawn Mower leads this list. It offers a 5.0 Ah battery capacity, which supports longer run times for small lawns under half an acre. This capacity helps you finish your yard without frequent recharges. We analyzed the cutting width, motor type, and weight to rank these tools. This guide helps you decide which mower fits your lawn size and power needs.
Check voltage and battery capacity first
All three Greenworks models listed here are cordless electric, despite the guide title. You must match the voltage and battery amp-hour rating to your lawn size. The 80V models with 5.0 Ah batteries offer more runtime than the 40V or lower-capacity 80V options. Choose the 80V 5.0 Ah version for larger yards under half an acre.
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | Greenworks 80V 21-Inch Push Lawn Mower Best overall | small lawns under half an acre | |
| 2 | Greenworks 80V 21-Inch Cordless Push Mower Best budget | maintenance-free push mowing | |
| 3 | Greenworks 40V 21-Inch Push Lawn Mower Best 40v | Quiet operation and tool ecosystem users |
The best fit for you
- You need the best overall mower for small lawns – Greenworks 80V 21-Inch Push Lawn Mower – The 5.0 Ah battery and 21-inch cut width provide ample power for yards under half an acre.
- You want the most budget-friendly option available – Greenworks 80V 21-Inch Cordless Push Mower – This model uses two 2.0 Ah batteries, keeping the initial cost lower while maintaining a 21-inch cutting deck.
- You prioritize quiet operation and ecosystem compatibility – Greenworks 40V 21-Inch Push Lawn Mower – The 40V system offers quieter performance and shares batteries with other Greenworks tools for added convenience.
Greenworks 80V 21-Inch Push Lawn Mower
Best for: small lawns under half an acre
- Power Type
- Gas
- Cutting Width
- 21"
- Drive Type
- Push
- Voltage
- 80V
- Battery Capacity
- 5.0 Ah
- Mowing Functions
- 4-in-1
This 80V push mower features a 21-inch steel deck and a brushless motor for extended runtime. It includes a 5.0 Ah battery, allowing cuts of up to half an acre. The 7-position height adjustment and 4-in-1 mulching system offer versatility. It suits users with small to medium lawns who want a quiet, powerful cordless option without gas maintenance.
- 80V brushless motor provides high torque and quiet operation
- 5.0 Ah battery supports up to 1/2 acre per charge
- 21-inch steel deck handles tall grass effectively
- 7-position height adjustment for varied lawn conditions
- 4-in-1 system for mulching, bagging, and side discharge
- Heavier at 84 pounds compared to lighter alternatives
- Push drive type requires more physical effort than self-propelled models
- 5.0 Ah battery capacity is lower than 8.0 Ah options
- You have a lawn under half an acre
- You prefer quiet operation over gas noise
- You want to use one battery across multiple Greenworks 80V tools
- You need self-propelled drive for steep slopes
- You have a lawn larger than half an acre
- You prefer gas-powered engines for maximum runtime
Verdict: Greenworks 80V 21in Push Mower is a solid choice for homeowners with small yards who value quiet, cordless power. It fits users who already own other 80V Greenworks tools or want a low-maintenance electric alternative to gas.
Greenworks 80V 21-Inch Cordless Push Mower
Best for: maintenance-free push mowing
- Power Type
- Gas
- Cutting Width
- 21"
- Drive Type
- Push
- Voltage
- 80V
- Battery Capacity
- 2.0 Ah
- Run Time
- Up to 60 minutes
This Greenworks 80V push mower features a 21-inch cutting width and a TruBrushless motor. It includes two 2.0 Ah batteries, offering up to 60 minutes of runtime. The 3-in-1 design allows for mulching, rear bagging, or side discharge. You get five height adjustment positions for versatile cutting. It is a maintenance-free option with push-button start. This model suits users seeking gas-like performance without the upkeep of a gas engine.
- TruBrushless motor provides extended runtime and quiet operation
- 21-inch cutting width covers ground efficiently
- 5-position height adjustment for varied terrain
- 3-in-1 mulch, bag, and side discharge capabilities
- 2.0 Ah battery capacity is lower than the 5.0 Ah batteries on other list items
- Push drive type requires more physical effort than self-propelled models
- You want a maintenance-free mower with gas-like performance
- You prefer a push mower for smaller to medium lawns
- You need versatile discharge options like mulching or bagging
- You need self-propelled power for steep hills
- You require longer continuous runtime than 60 minutes
- You prefer larger cutting widths than 21 inches
Verdict: Greenworks 80V 21in Push Mower is a practical choice for homeowners who want reliable, low-maintenance cutting. It fits those who value the quiet operation of a brushless motor and the flexibility of multiple discharge modes.
Greenworks 40V 21-Inch Push Lawn Mower
Best for: Quiet operation and tool ecosystem users
- Power Type
- Gas
- Cutting Width
- 21"
- Drive Type
- Push
- Voltage
- 40V
- Battery Capacity
- 5.0 Ah
- Run Time
- Up to 60 minutes
This Greenworks mower uses a 40V brushless motor and a 5.0 Ah battery to deliver up to 60 minutes of run time. Its 21-inch steel deck handles grass efficiently. The dual battery port lets you store one battery while mowing with the other. It offers mulching, rear bagging, and side discharge options. Vertical storage saves space. It suits users seeking quiet operation and compatibility with other 40V tools.
- Brushless motor provides quiet operation and longer life.
- Dual battery port allows one battery storage while mowing.
- 3-in-1 design supports mulching, rear bagging, and side discharge.
- Vertical storage feature saves garage space.
- 40V voltage is lower than the 80V models on this list.
- Single 5.0 Ah battery capacity is less than the dual 2.0 Ah setup in other options.
- Push drive type lacks self-propelled assistance.
- You want quiet operation from a brushless motor.
- You already own other Greenworks 40V tools.
- You prefer manual push control for precise mowing.
- You need the higher power of an 80V system.
- You require self-propelled drive for hilly terrain.
- You want extended run time beyond 60 minutes.
Verdict: Greenworks 40V 21-Inch Push Mower fits users who value quiet operation and tool ecosystem compatibility over raw power. It is a practical choice for flat lawns where manual pushing is manageable.
Specifications side by side
| Spec | Greenworks 80V 21-Inch Push Lawn Mower | Greenworks 80V 21-Inch Cordless Push Mower | Greenworks 40V 21-Inch Push Lawn Mower |
|---|---|---|---|
| Cutting Width | 21" | 21" | 21" |
| Drive Type | Push | Push | Push |
| Voltage | 80V | 80V | 40V |
| Battery Capacity | 5.0 Ah | 2.0 Ah | 5.0 Ah |
| Run Time | – | Up to 60 minutes | Up to 60 minutes |
| Mowing Functions | 4-in-1 | 3-in-1 (mulch, rear bag, side discharge) | 3-in-1 (mulch, rear bag, side discharge) |
| Motor Type | Brushless | TruBrushless | Brushless |
| Height Adjustments | 7 position | 5-position | – |
| Power Type | Gas | Gas | Gas |
| Dimensions | 45 × 20 × 23 inches | 32.3 × 18.2 × 20.4 inches | 65.4 × 21.7 × 33.1 inches |
| Weight | 84 pounds | – | 62 pounds |
| Size | 21" Mower (5.0Ah) | 21 in Mower (2 x 2.0Ah) | 21" Mower |
| Color | green | Green | Green |
| Model | 2552002 | GLM801602 | LMF413 |
How to choose the right gas mower
Check the cutting width
All three Greenworks models feature a 21-inch cutting width. This standard size balances maneuverability in tight spaces with efficient coverage for average yards. You do not need to compare different widths here since every option listed provides the same deck size. This consistency means your choice will depend on other factors like power source or battery capacity rather than the area you can cut in a single pass.
Match voltage to lawn size
Voltage indicates the power level of the motor. The list includes both 80V and 40V models. Higher voltage generally supports longer runtime and better performance in thick grass. The top-ranked 80V model with a 5.0 Ah battery suits larger or denser lawns. The 40V option is lighter but may require more frequent charging for extensive areas. Choose the voltage that aligns with your yard's demands.
Evaluate battery capacity
Battery capacity, measured in amp-hours (Ah), determines runtime. The best overall pick includes a single 5.0 Ah battery. The budget option uses two 2.0 Ah batteries for a total of 4.0 Ah. The 40V model also features a 5.0 Ah battery. Higher capacity means you can mow for longer without stopping to recharge. Select the capacity that ensures you can finish your yard in one session.
Consider the drive type
Every mower in this guide is a push model. You must provide the physical effort to move the machine forward. This drive type is lighter and simpler than self-propelled versions. It suits flat lawns where pushing is manageable. If you have steep hills, you might find manual pushing tiring. Since all options share this trait, you do not need to compare drive types when making your final decision.
Assess weight and handling
Weight affects how easy the mower is to push and store. The 80V 5.0 Ah model weighs 84 pounds. The 40V 5.0 Ah model is lighter at 62 pounds. The budget 80V model with dual batteries has unspecified weight but is likely heavier due to extra batteries. Lighter mowers are easier to maneuver around obstacles. Consider your physical strength and storage space when weighing these differences.
Frequently asked questions
Which Greenworks mower is best for small lawns?
The Greenworks 80V 21-Inch Push Lawn Mower is the top choice for small yards under half an acre. It features a 5.0 Ah battery and a brushless motor. This combination provides quiet operation and reliable power. The 21-inch cutting width covers ground efficiently without being too large for tight spaces.
What is the difference between the 80V and 40V models?
The primary difference is voltage and runtime. The 80V models offer higher power and longer run times compared to the 40V option. The 80V push mowers use 5.0 Ah or dual 2.0 Ah batteries. The 40V model uses a single 5.0 Ah battery, making it lighter but less powerful for thick grass.
Are these Greenworks mowers gas or electric?
Despite the guide title, all listed Greenworks models are cordless electric. They run on rechargeable batteries rather than gasoline. This means you get maintenance-free operation with no oil changes or fuel mixing. The brushless motors also provide quieter performance compared to traditional gas engines.
How much do these Greenworks mowers weigh?
Weights vary by model and battery configuration. The 80V 5.0 Ah model weighs 84 pounds. The 40V 5.0 Ah model is lighter at 62 pounds. The budget 80V model with dual 2.0 Ah batteries does not list a weight in the data. Heavier mowers may offer more stability during mowing.
Which model is the most budget-friendly option?
The Greenworks 80V 21-Inch Cordless Push Mower is labeled as the best budget pick. It uses two 2.0 Ah batteries instead of a single larger one. This setup keeps the initial investment lower while still providing a 21-inch cut. It is ideal for users who want reliable performance without a high upfront cost.
Do these mowers have self-propelled drives?
No, all three listed models are push mowers. They do not have self-propelled drive systems. You must push them manually across the lawn. This design keeps the units lighter and simpler. It is suitable for flat lawns where pushing is manageable and you do not need extra assistance on hills.
