4.0 Ah or 6.0 Ah Lawn Mowers? Compared by Specs
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Choosing between a 40 ah vs 60 ah lawn mower often means picking between entry-level convenience and heavy-duty performance. Both models are cordless, eliminating gas maintenance and fumes. The primary difference lies in their power systems and capabilities. One offers a lightweight, budget-friendly push mower for small yards. The other provides a self-propelled, high-voltage system with extended runtime for larger areas. You need to weigh cutting width and drive type against battery capacity to find the right fit for your property.
Key differences
| Aspect | Greenworks 40V 16-Inch Push Lawn Mower | EGO 22-Inch Self-Propelled Super Composite |
|---|---|---|
| Voltage | 40V | 56V |
| Battery Capacity | 4.0 Ah | 6.0 Ah |
| Cutting Width | 16 in | 22 in |
| Drive Type | Push | Self-Propelled |
| Runtime | Up to 1/3 acre | Up to 90 minutes |
Which one should you choose?
Choose Greenworks 40V 16-Inch Push Lawn Mower if
- You have a small lawn under one-third of an acre
- You prefer a lightweight mower that is 35% lighter than steel decks
- You want a simple push mower with a 3-year warranty
Choose EGO 22-Inch Self-Propelled Super Composite if
- You need to cut wider swaths with a 22-inch deck
- You want self-propelled drive to reduce physical effort
- You require up to 90 minutes of runtime on a single charge
Verdict: The 4.0 Ah model suits small yards where maneuverability and low weight matter most. The 6.0 Ah model is better for larger properties, offering more power, a wider cut, and self-propulsion. Your choice depends on yard size and the physical effort you want to exert.
4.0 Ah vs 6.0 Ah Mower Specs
Battery Capacity
The Greenworks model comes with a single 4.0 Ah battery. This capacity allows it to cut up to one-third of an acre on a full charge, depending on grass conditions and your technique. The EGO mower includes two 56V 6.0Ah batteries. This dual-battery setup provides up to 90 minutes of runtime on a single charge. The larger capacity in the EGO system offers significantly more mowing time per charge cycle compared to the single smaller battery in the Greenworks unit.
Voltage and Power
Voltage indicates the electrical pressure in the system. The Greenworks mower operates on a 40V platform. The EGO mower uses a 56V system, which provides higher electrical pressure. The EGO also delivers up to 10.6 ft-lbs of cutting torque and blade speeds up to 3,200 RPM. This power output is designed to exceed the performance of many gas-powered mowers. The Greenworks data does not list torque or RPM figures, making the EGO the stronger choice for high-power demands.
Cutting Width
Cutting width determines how much grass you mow in a single pass. The Greenworks mower has a 16-inch cutting deck. This narrower width is typical for smaller yards or tight spaces where maneuverability is key. The EGO mower features a 22-inch Super Composite deck. The wider deck covers more ground with each pass, reducing the number of passes needed to complete a job. If you have a larger lawn, the wider EGO deck will help you finish faster.
Drive Type
Drive type affects how you move the mower across your lawn. The Greenworks model is a push mower. You must provide all the physical effort to move it forward, which can be tiring on slopes or thick grass. The EGO mower is self-propelled. It uses Touch Drive technology to move itself. You engage the function with a touch and adjust speed with a dial. This reduces physical effort, making it easier to mow larger or uneven lawns without straining your arms.
Weight and Maneuverability
Weight impacts how easy the mower is to lift and store. The Greenworks mower weighs 37.5 pounds. It is noted as being 35% lighter than steel deck mowers, making it easy to carry up stairs or store in a shed. The EGO mower weighs 120 pounds. While heavier, this weight comes from the robust self-propelled mechanism and larger deck. The Greenworks is clearly the lighter, more portable option for users who need to move the unit frequently.
4.0 Ah or 6.0 Ah Mower Picks
Small yard owners seeking lightweight ease
This Greenworks model weighs just 37.5 pounds. It is 35% lighter than steel decks. The 16-inch cutting width fits tight spaces. You get a 4.0 Ah battery for up to one-third acre coverage. The push drive requires no self-propel mechanism. Five height positions let you adjust the cut. This setup suits small lawns where maneuverability matters most.
Large lawn owners needing self-propel power
This EGO mower features a 22-inch cutting deck. It covers more ground per pass. The self-propelled drive reduces your physical effort. You receive two 6.0 Ah batteries for up to 90 minutes of runtime. The 56V system delivers high torque. Touch drive controls let you adjust speed easily. This configuration handles larger properties and thicker grass with ease.
Users wanting long-term deck durability
The EGO mower includes a Super Composite deck. It resists dents, rust, and corrosion. This deck is backed by a 10-year limited warranty. The Greenworks model offers a 3-year warranty. If you plan to keep the mower for many years, the longer coverage provides extra peace of mind. The composite material also keeps the deck lightweight despite its size.
Quick picks
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | Greenworks 40V 16-Inch Push Lawn Mower | small lawns under 1/3 acre | Check price of Greenworks 40V 16-Inch Push Lawn Mower on Amazon |
| 2 | EGO 22-Inch Self-Propelled Super Composite | Larger lawns needing extended runtime | Check price of EGO 22-Inch Self-Propelled Super Composite on Amazon |
The products compared
Greenworks 40V 16-Inch Push Lawn Mower
Best for: small lawns under 1/3 acre
- Battery Capacity
- 4.0 Ah (what this guide is about)
- Power Source
- Cordless
- Cutting Width
- 16 in
- Voltage
- 40V
- Drive Type
- Push
- Cutting Height
- 5 position
View on Amazon: Greenworks 40V 16-Inch Push Lawn Mower Affiliate link
This Greenworks model is a 40V push mower with a 16-inch cutting width and a 4.0 Ah battery. It weighs 37.5 pounds and offers five cutting height positions. The 2-in-1 system supports mulching and rear bagging. It is designed for small lawns up to 1/3 acre. You will find this fit for tight storage spaces and light mowing tasks.
Pros
- 4.0 Ah battery capacity for cordless operation
- 16-inch cutting width for maneuverability
- 37.5-pound lightweight steel deck
- 5-position single-lever height adjustment
- 2-in-1 mulch and rear bag system
Cons
- 16-inch cutting width is narrower than competitors
- Push drive requires physical effort
- 3-year warranty is shorter than industry standards
Good fit if
- You have a small lawn under 1/3 acre
- You need a lightweight mower for easy handling
- You prefer a compact 16-inch cutting deck
Skip if
- You need self-propelled drive for hills
- You want a wider 21-inch cutting deck
- You require a battery larger than 4.0 Ah
Verdict: Greenworks 40V 16-Inch Push Mower suits users with small, flat lawns who prioritize lightweight handling over cutting width. It is a practical option for tight spaces and minimal maintenance needs.
EGO 22-Inch Self-Propelled Super Composite
Best for: Larger lawns needing extended runtime
- Battery Capacity
- 6.0 Ah (what this guide is about)
- Power Source
- 56V battery
- Cutting Width
- 22 in
- Voltage
- 56V
- Drive Type
- self-propelled
- Runtime
- up to 90 min
View on Amazon: EGO 22-Inch Self-Propelled Super Composite Affiliate link
This EGO mower uses two 56V 6.0Ah batteries to deliver up to 90 minutes of runtime. It features a 22-inch Super Composite deck and self-propelled drive with touch control. The system includes interchangeable blades for bagging or mulching. It suits you if you need longer battery life than the 4.0Ah options on this list. The heavier build supports the dual-battery setup.
Pros
- Two 56V 6.0Ah batteries provide up to 90 minutes of runtime
- 22-inch Super Composite deck resists dents and rust
- Touch Drive self-propelled system with adjustable speed dial
- Interchangeable lower blades for bagging or mulching
Cons
- Weighs 120 pounds, significantly heavier than single-battery models
- 22-inch cutting width is narrower than the 30-inch option
- Does not include a remote control or app connectivity
Good fit if
- You need extended runtime for larger lawns
- You prefer self-propelled ease over push effort
- You want a durable composite deck
Skip if
- You prefer a lightweight push mower
- You want a wider 30-inch cutting path
- You need remote start capabilities
Verdict: EGO 56V 22in Self-Propelled Mower fits users who prioritize runtime and self-propelled convenience. It is ideal for medium to large lawns where the extra battery capacity matters.
Specifications side by side
| Spec | Greenworks 40V 16-Inch Push Lawn Mower | EGO 22-Inch Self-Propelled Super Composite |
|---|---|---|
| Power Source | Cordless | 56V battery |
| Cutting Width | 16 in | 22 in |
| Voltage | 40V | 56V |
| Drive Type | Push | self-propelled |
| Battery Capacity | 4.0 Ah | 6.0Ah |
| Runtime | not stated | up to 90 min |
| Deck Material | not stated | Super Composite |
| Cutting Height | 5 position | not stated |
| Mowing Function | 2-in-1 (mulch, rear bagging) | bag, mulch |
| Application | Lawn | Lawn |
| Dimensions | 50.8 × 18.9 × 39 inches | 63 × 23.5 × 45.5 inches |
| Weight | 37.5 pounds | 120 pounds |
| Size | 16" Cordless (4.0Ah) | 22" |
| Color | Green | Black |
| Model | 25322 | LM2244SP-2 |
Frequently asked questions
Is a 4.0 Ah battery enough for my lawn?
Yes, if your yard is under one-third of an acre. The Greenworks 40V mower with a 4.0 Ah battery is designed for small, flat lawns. It offers lightweight handling and fits tight spaces. This capacity provides sufficient runtime for smaller properties without the bulk of larger systems.
Does a 6.0 Ah battery provide more runtime?
Yes, the 6.0 Ah capacity supports longer cutting sessions. The EGO 56V model uses this larger battery to handle medium to large lawns. It is ideal when you need extended runtime and self-propelled convenience. The extra capacity ensures you can finish bigger yards on a single charge.
Which mower is better for small yards?
The Greenworks 40V 16-Inch Push Mower is the better choice. It weighs 37.5 pounds and features a 16-inch cutting width. This makes it practical for tight spaces and minimal maintenance. It suits users who prioritize lightweight handling over wider cutting paths or self-propelled features.
Do I need self-propelled for a large lawn?
Self-propelled drive helps reduce physical effort on larger or uneven terrain. The EGO 22-Inch model includes this feature alongside its 6.0 Ah battery. It is built for users who prioritize runtime and ease of movement. This combination works well for medium to large lawns where pushing a heavy mower is difficult.
How much heavier is a 6.0 Ah mower?
The EGO mower weighs 120 pounds, which is significantly heavier than the Greenworks model at 37.5 pounds. This difference reflects the larger battery and self-propelled mechanism. You should consider this weight if you need to store the mower indoors or maneuver it frequently.
What is the difference in cutting width?
The Greenworks mower has a 16-inch cutting width, while the EGO mower offers a 22-inch width. The wider deck on the EGO model allows you to cover more ground per pass. This is beneficial for larger lawns where efficiency matters. The narrower Greenworks deck is better for tight spaces.

