7 Best Electric Lawn Mowers for Thick Grass 2025

The EGO POWER+ LM2101 is a game-changer for homeowners battling thick, overgrown grass with zero tolerance for underpowered mowers. Boasting a 56V ARC Lithium system, this cordless beast delivers 45 minutes of sustained runtime—more than enough to conquer half-acre lawns—even when grass towers at 5 inches. Its 21-inch steel deck and 6 cutting height settings (up to 4 inches) make it uniquely capable of handling dense turf, while the brushless motor ensures consistent blade speed without bogging down. If you’ve ever struggled with a mower that sputters through tall fescue or Bermuda grass, this one feels like a power upgrade you didn’t know you needed.

In real-world testing, the LM2101 carved through wet, knee-high grass with the calm confidence of a commercial unit, thanks to its high-torque motor and optimized blade airflow. The side discharge chute stayed clear even at full throttle, and mulching performance was exceptionally clean, leaving behind finely shredded clippings. At 65 dB, it’s whisper-quiet compared to gas models, and the IPX4-rated weather resistance means you can mow right after morning dew without fear. However, the 21-inch width makes it less agile in tight corners, and the 70-pound weight requires some effort when tipping for cleaning. Still, for thick grass, it rarely stalls—unlike lighter 18-inch models that struggle under load.

Compared to the Greenworks 60V or YARDCARE 36V, the EGO stands in a premium tier of power and durability, outclassing budget mowers in both torque and runtime consistency. It’s ideal for homeowners with large, grass-heavy yards who want gas-level performance without the noise or emissions. While it costs more than most, its 5.0Ah battery and rapid charger deliver unmatched convenience and longevity—making it a smarter long-term investment than lower-voltage competitors.

When thick grass meets thin battery life, most cordless mowers fold—but the Greenworks 60V 17” thrives where others quit. Engineered with a high-efficiency brushless motor, it maintains full blade speed under load, slicing through dense St. Augustine and tall rye with remarkable consistency. The 60V system delivers 40 minutes of real-world runtime, which is more than sufficient for lawns up to 1/2 acre, especially when paired with its 17-inch rust-resistant deck. With 6 height settings (up to 3.15”) and dual mulching/bagging modes, it’s tailored for users who demand versatility without compromise—a rare find in the mid-priced segment.

During testing, the mower handled 3-inch wet grass without hesitation, thanks to its optimized blade design and motor torque. The rear bag fills evenly, and mulching leaves no clumps, even in shaded, moist areas where grass tends to mat. Its lightweight frame (47 lbs) makes it easy to push, and the ergonomic handle reduces strain during extended sessions. However, on uneven terrain, the smaller wheels can dip and cause inconsistent cuts, and the side discharge chute occasionally clogs in ultra-thick patches. While the 80-minute charge time isn’t the fastest, it’s acceptable given the power output.

Against the EGO LM2101, it trades some deck width and runtime for better maneuverability and lower cost, making it a smarter pick for medium lawns with thick grass. It’s also part of a 75+ tool ecosystem, so if you already own Greenworks gear, this integrates seamlessly. For those prioritizing raw cutting power in a nimble package, this mower delivers best-in-class performance for thick grass—without the heft or price of larger models.

The American Lawn Mower 51319 is a no-nonsense powerhouse built for users who want uninterrupted cutting power without battery anxiety. With a 13-amp motor and 19-inch deck, it delivers continuous torque—a critical advantage when tackling thick, fibrous grass that stalls weaker cordless models. Unlike battery-powered units that fade mid-mow, this corded workhorse maintains full RPM from start to finish, making it a reliable choice for dense lawns under 1/3 acre. The 3-inch max cutting height and 6-position adjustment let you customize your cut, while the rear bag and mulch plug offer flexibility in clippings management.

In practice, this mower excels on dry, thick grass and handles moderate slopes with ease, thanks to its sturdy build and large rear wheels. The 19-inch width reduces pass count, speeding up mowing time significantly. However, the cord limits range, requiring a 100+ ft extension (sold separately), and wet grass increases tripping risk—a real concern in humid climates. It’s also noisier than cordless models and lacks modern perks like LED lights or folding handles. Still, for users who mow the same yard weekly and want maximum power with zero downtime, this mower is a rare corded standout.

Compared to the EGO or Greenworks cordless models, it wins on sustained power and lower cost, but loses on freedom of movement and convenience. It’s best suited for urban or suburban homeowners with small-to-medium yards who prioritize raw performance over portability. While it lacks battery flexibility, it offers better value than premium cordless mowers if you don’t mind the cord.

The YARDCARE 36V is a surprising overachiever in the budget cordless segment, punching well above its price with dual 4.0Ah batteries and a smart LED display. While 36V is lower than premium 56V or 60V systems, the brushless motor at 3200 RPM delivers smooth, consistent cuts—even in moderately thick grass. With up to 60 minutes of runtime on low, it’s ideal for small to medium lawns, and the 8-gallon grass bag reduces emptying frequency. The LED screen is a standout, showing real-time battery life and speed, eliminating guesswork—a rare feature at this price.

In testing, it handled 2.5-inch dry grass confidently, though it slowed slightly in wet, dense patches. The 5 height settings (up to 2.56”) are sufficient for most lawns, but not ideal for very tall or overgrown turf. The dual batteries are a major plus—swap one while mowing for near-continuous use—but the 3200 RPM motor lacks the torque of higher-voltage models when grass exceeds 3 inches. It’s also lighter than most (39 lbs), making it easy to push, but the plastic deck feels less durable on rocky terrain.

Against the Greenworks 40V or MightyMow, it offers better battery redundancy and tech features, though with less raw power. It’s perfect for first-time electric mower users or renters with small yards who want smart features without spending $300+. While it can’t match the EGO or Greenworks 60V on thick grass, it’s the best value for budget-conscious buyers needing reliable, tech-enhanced performance.

The Greenworks 40V 16” is the definition of lightweight efficiency, designed for users who prioritize ease of use over raw power. At just 35 lbs, it’s 35% lighter than average, making it a top pick for seniors, beginners, or those with small yards. The 16-inch deck and 5-position height adjustment (up to 3.375”) allow for precise cuts, and the 4.0Ah battery delivers 35–45 minutes of runtime—enough for up to 1/2 acre under ideal conditions. Its single-lever height adjustment and push-button start make operation effortless, and the <75dB noise level keeps neighborhoods quiet.

In real use, it handles thin to moderate grass beautifully, but struggles in thick, wet patches, where the motor occasionally bogs down. The small deck means more passes, and the rear bag fills quickly on longer mows. It’s also not built for tall weeds or overgrown lawns, where higher-torque models dominate. However, for well-maintained lawns under 1/2 acre, it’s incredibly easy to store, push, and maintain. The 3-year warranty and 75+ tool ecosystem add long-term value, especially if you already own Greenworks gear.

Compared to the Greenworks 60V or EGO models, it trades power and deck size for comfort and portability. It’s not the best for thick grass, but it’s perfect for light-duty mowing where convenience matters most. For users who hate heavy equipment and want zero gas hassle, this mower delivers best-in-class ergonomics and ease of use—a clear win for low-effort lawn care.

The MightyMow 2x20V stands out with its 18-inch deck and dual 4.0Ah batteries, making it a top contender for wide, efficient cuts. While technically powered by two 20V systems (40V total), its brushless motor hits 4200 RPM, delivering impressive torque for a mid-range mower. The larger cutting width means fewer passes, cutting mowing time by nearly 20% compared to 16-inch models. With 6 height settings (up to 3”) and a 40L grass bag, it balances coverage and convenience, ideal for medium-sized lawns with moderate grass density.

In testing, it sliced through 2.5-inch grass efficiently, though it struggled slightly in wet, matted turf, where blade speed dipped. The dual batteries allow for extended runtime or hot-swapping, and the dual charger ensures both are ready quickly. The adjustable handle fits users from 5’4” to 6’2”, enhancing comfort. However, the plastic housing feels less rugged than metal-deck rivals, and the 4200 RPM motor, while fast, lacks deep torque for very thick grass. It also doesn’t fold, limiting storage options.

Against the YARDCARE or Greenworks 40V, it offers wider cuts and better battery setup, though with similar voltage limitations. It’s best for homeowners wanting faster mowing without stepping up to 60V, especially those with flat, open yards. While not the strongest on thick grass, it’s the best wide-deck option under $200, delivering speed and value where efficiency matters most.

The LawnMaster MEB1114K is the ultimate budget pick for small yards, offering dependable performance at an unbeatable price. With an 11-amp motor and 14-inch deck, it delivers 3,300 RPM of cutting power—enough for thin to medium grass, though it struggles in thick or wet conditions. The 5 height settings (up to 3”) and 7-gallon bag make it functional for basic lawn care, and the 7.75-inch rear wheels ensure smooth rolling over flat terrain. At just 28 lbs, it’s one of the lightest mowers available, making it perfect for patios, small lawns, or occasional use.

In real-world use, it performs well on dry, short grass, but slows noticeably in taller patches, requiring slower passes. The cord limits range, and the small deck means more passes, increasing mow time. It’s also noisier than cordless models and lacks modern features like LED lights or folding handles. However, for renters or first-time homeowners, it’s reliable, low-maintenance, and easy to store—especially with its foldable handle.

Compared to the American Lawn Mower 51319, it’s lighter and cheaper, but with less power and smaller deck. It’s not built for thick grass, but for small, well-kept lawns, it’s the most affordable entry point into electric mowing. If you need basic cutting without spending $150, this mower delivers essential performance with zero frills.