Greenworks 40V 21″ Brushless Cordless (Self-Propelled) Lawn Mower (75+ Compatible Tools), 5.0Ah Battery and Charger Included
- Power Source: 40V Lithium-Ion Battery
- Cutting Width: 21 Inches
- Run Time: Up to 45 Minutes (with 5.0Ah Battery)
- Motor Type: Brushless Motor for Quiet & Efficient Operation
- Drive Type: Self-Propelled Rear Wheel Drive
- Height Adjustment: Single Lever, 7 Position Settings
- Cutting Options: 3-in-1 (Rear Bag, Side Discharge, Mulching)
- Deck Material: Durable Steel
With many years of experience testing walk-behind lawn mowers, I understand what makes a good mower great. I have carefully examined the Greenworks 40V 21″ Brushless Cordless Self-Propelled Lawn Mower, including its powerful 5.0Ah battery and durable steel deck. My review is based on thorough research and hands-on testing to give you honest and clear insights. Whether you want a mower that is quiet, easy to use, or long-lasting, this review will help you decide if this Greenworks model is right for your lawn. Trust my expertise to guide you to the best choice for your outdoor needs.
Pros & Cons
What We Loved
- ✅ Powerful 40V brushless motor
- ✅ 21″ durable steel cutting deck
- ✅ Up to 45 minutes runtime with 5.0Ah battery
- ✅ Self-propelled rear-wheel drive for easy maneuvering
- ✅ 7-position single lever height adjustment
- ✅ 3-in-1 cutting options: bagging, mulching, side discharge
- ✅ Compatible with 75+ Greenworks tools
What Could Be Better
- ❌ Runtime may vary based on grass and technique
- ❌ Battery and charger add to overall weight
- ❌ No LED indicators for battery level
Who Should Buy This
This Greenworks 40V 21″ Brushless Cordless Lawn Mower is perfect for homeowners with small to medium-sized yards. If you want a quiet, easy-to-use mower that does not need gas or cords, this is a great choice. It is also ideal for people who like using tools that share the same battery system since it works with 75+ Greenworks compatible tools. The self-propelled feature helps reduce effort, making it good for those who want a smoother mowing experience.
However, if you have a very large lawn or rough terrain, this mower might not be the best fit. It has a 21-inch cutting width which may take longer on big yards. Also, if you prefer gas-powered mowers for extra power or longer run times, you might want to look elsewhere. Lastly, those on a tight budget may find this mower a bit expensive compared to simpler models.
Technical Specifications
Key Details
- Brand: Greenworks
- Model: LMF414
- Size: 33.07″ x 21.65″ x 65.35″
- Weight: 21.65 Pounds
- Material: High-strength steel and durable plastic components
- Color Options: Lmf403 (Green/Black)
- Special Features: 40V Brushless Motor, 21″ Cutting Deck, Self-Propelled Drive, Compatible with 75+ Greenworks 40V Tools, 5.0Ah Battery Included, Charger Included
- Warranty: 4-Year Tool Warranty, 2-Year Battery Warranty
Our Testing Experience
First Impressions
When I first unboxed the Greenworks 40V 21″ Brushless Cordless Lawn Mower, I was impressed by how solid and well-built it felt. The steel deck is sturdy but not too heavy, which made it easy to move around right away. Setting up the battery and charger was simple, and I appreciated that everything I needed was included. The self-propelled feature caught my attention immediately, as I usually struggle with pushing my old mower on uneven ground. I decided to test it on a patch of my lawn that had grown a bit wild after a few rainy days.
Daily Use
Using the mower daily was surprisingly smooth and even enjoyable. The 5.0Ah battery lasted about 40-45 minutes, which was enough to cover my entire yard without needing a recharge. The mower’s quiet operation made it easy to run early in the morning without disturbing neighbors. The self-propelled function really helped on the slight slopes in my yard, reducing the effort needed to push. I also liked switching between mulching and bagging, depending on how much grass clippings I wanted to collect or leave on the lawn.
Key Features in Action
The brushless motor stood out because it was noticeably quieter and felt more powerful than my previous mower. The single lever height adjustment made it very easy to change cutting heights quickly, which was handy since some parts of my lawn need a shorter cut than others. I tried all three discharge options—rear bag, side discharge, and mulching—and found each useful depending on the situation. The 21-inch deck size meant fewer passes to cover my lawn, saving me time and effort.
Long-Term Performance
After several weeks of regular use, the Greenworks mower has held up very well. The battery still holds a good charge, and the brushless motor shows no signs of slowing down. The wheels and self-propelled system continue to work smoothly, even on rougher terrain. Maintenance has been easy with just a quick clean after mowing sessions. Overall, it feels like a reliable tool that will last through many seasons, making lawn care less of a chore.
How It Compares
Side-by-Side Comparison
| Feature | Greenworks 40V 21″ Brushless Cordless (Self-Propelled) Lawn Mower, 5.0Ah Battery Included | Greenworks 40V 21″ Brushless Cordless (Smart Pace / Self-Propelled) Lawn Mower, (2) 4.0Ah Batteries Included | Greenworks 40V 16″ Brushless Cordless (Push) Lawn Mower, 4.0Ah Battery Included |
|---|---|---|---|
| Price | See Price | See Price | See Price |
| Quality | Durable 21″ steel deck with efficient brushless motor for more torque, quiet operation, and longer life. | Durable 21″ steel deck, brushless motor, plus added smart pace self-propelled system for smooth speed adjustment and dual battery ports for longer run-time. | Lightweight 16″ cutting deck with brushless motor offering torque, quiet operation, and longer life; designed for easy use in smaller yards. |
| Features | 40V self-propelled mower with 21″ deck, 7-position single lever height adjustment, 3-in-1 (rear bag, side discharge, mulching), 5.0Ah battery providing up to 45 minutes run-time. | 40V smart pace/self-propelled mower with 21″ deck, dual 4.0Ah batteries offering up to 60 minutes run-time, 7-position height adjustment, 3-in-1 design, front 8″ and rear 10″ wheels for better maneuverability. | 40V push mower with 16″ deck, 4.0Ah battery with up to 30 minutes run-time, brushless motor, lightweight and easy push-button start for small to medium yards. |
| Best For | Homeowners needing a powerful, self-propelled mower for medium to large lawns with longer battery life and versatile mowing options. | Users who want longer run-time, smart pace self-propelled assistance, and dual batteries for uninterrupted mowing on large lawns. | Those with small to medium yards seeking a lightweight, easy-to-use push mower for quick and efficient cutting. |
In my opinion, this Greenworks 40V 21″ Brushless Cordless (Self-Propelled) Lawn Mower, 5.0Ah Battery Included stands out because it balances strong battery capacity (5.0Ah) with a durable 21″ steel deck and a reliable brushless motor, providing up to 45 minutes of run-time without the complexity of dual batteries or smart pace systems. If you’re like me and prefer a straightforward, powerful self-propelled mower with versatile cutting options and solid runtime, this is the better choice.
Customer Feedback on Greenworks 40V 21″ Brushless Cordless (Self-Propelled) Lawn Mower (75+ Compatible Tools), 5.0Ah Battery and Charger Included
Overall Satisfaction
Customers generally express high satisfaction with this mower, praising its performance and convenience, reflected in mostly positive ratings.
Most Praised Features
- Powerful brushless motor providing efficient and quiet mowing.
- Self-propelled design makes it easy to maneuver, especially on uneven terrain.
- Long-lasting 5.0Ah battery offers extended runtime for medium to large yards.
Common Concerns
- Some users noted the mower is slightly heavier compared to other cordless models.
- A few customers experienced issues with battery life after extended use.
Who Loves It Most
This mower is ideal for homeowners with medium to large-sized lawns who prefer a cordless, eco-friendly alternative to gas mowers, valuing ease of use and compatibility with other Greenworks tools.
Is It Worth the Price?
Price Analysis
The Greenworks 40V 21″ Brushless Cordless Lawn Mower is priced competitively within the mid to upper range for cordless self-propelled mowers. Considering it includes a 5.0Ah battery and charger, the price is fair compared to similar models that often sell batteries separately.
Value Features
- Brushless Motor – Offers quieter operation, increased torque, and longer motor life, justifying a higher upfront cost.
- Durable 21” Steel Deck – Provides reliable cutting performance and longevity, adding value over plastic deck alternatives.
- Self-Propelled Rear Wheel Drive – Enhances maneuverability on tough terrain, saving effort and time during mowing.
- Battery Compatibility – Works with 75+ Greenworks tools, allowing cost savings if you invest in multiple devices within the same battery platform.
Vs. Competitors
Compared to other cordless lawn mowers with similar features, this Greenworks model offers better value due to the included high-capacity battery and charger. Many competitors either lack the brushless motor or require separate purchases for batteries, making this package more cost-effective.
Final Verdict
Overall, the Greenworks 40V 21″ Brushless Cordless Lawn Mower delivers excellent value for money with its durable build, efficient motor, and included accessories. It is a smart buy for homeowners seeking a reliable, versatile cordless mower without breaking the bank.