Consumer Reports Electric Lawn Mower Guide

Why you should trust this guide

I have been writing about outdoor power equipment for several years, and I have followed the electric lawn mower market closely as battery technology has matured. This guide is built on a careful analysis of manufacturer specifications, owner feedback across multiple retail platforms, and comparisons of real-world performance claims. I do not simply list features. I weigh each mower’s strengths against its intended use case, identifying which product truly serves which type of lawn and homeowner.

Every recommendation here is grounded in verifiable product data, not marketing hype. I have considered factors such as battery voltage, deck size, cutting system design, self-propulsion quality, and practical run time. I also look for honest limitations because no mower is perfect for every yard. The result is a buying guide that helps you match a specific machine to your specific lawn size, terrain, and budget without guesswork.

How we researched

To evaluate these five electric mowers, I established a set of objective criteria that matter most to homeowners. The primary factors were cutting quality, run time relative to battery capacity, ease of maneuverability, and versatility in mulching, bagging, and side-discharge modes. I also considered self-propelled system responsiveness for models that offer it, as well as overall build quality and deck durability. For the robotic mower, I assessed boundary wire navigation, rain tolerance, and app-based scheduling.

I then cross-referenced each manufacturer’s stated features with aggregated owner experiences to identify consistent strengths and weaknesses. I did not physically test these products myself. Instead, I synthesized data from verified purchase reviews, professional installer feedback, and comparative analysis of battery platform ecosystems. This approach ensures that my conclusions reflect what actual owners encounter over time, not just what a spec sheet promises. The goal is to give you a reliable roadmap before you spend your money.

EGO Power+ LM2135SP — Best Overall Electric Lawn Mower

The EGO LM2135SP has become the benchmark for cordless mowers because it delivers premium cutting performance without sacrificing run time or convenience. The 56V ARC lithium battery provides up to 60 minutes of run time on a single charge, which is enough for most one-third to one-half acre lawns. The 21-inch steel deck feels robust and cuts cleanly even through damp grass without clogging, a common frustration with lesser mowers. The Select Cut Multi-Blade System is the standout feature here. It uses two overlapping blades to create a finer cut that rivals gas mowers, and it excels in both mulching and bagging modes.

The Touch Drive Self-Propelled Technology is another reason this mower leads the category. Instead of a traditional speed dial, you control the pace by simply squeezing a thumb lever. The mower matches your walking speed automatically, from 0.9 MPH up to 3.1 MPH. This makes mowing on slopes or uneven terrain feel effortless. The high-efficiency brushless motor adds to the longevity and torque, so you are not losing power as the battery drains. One real limitation is the cost. The LM2135SP sits at the top of the price range for cordless mowers, and the battery platform is proprietary to EGO, so replacement batteries are not cheap. Another limitation is the weight; at around 60 pounds, it is heavier than some competitors, though the self-propulsion largely offsets this.

Greenworks Pro 80V 21″ — Best for Medium Yards

The Greenworks Pro 80V 21-inch mower brings higher voltage to a competitive price point, and that voltage translates into noticeable torque on thick grass patches. The brushless motor and 21-inch steel deck handle up to a half acre per charge on flatter terrain with the included 4.0Ah battery. The 80V system gives this mower a gas-like feel under load, meaning it does not bog down when you hit a dense clump of clover or damp growth. It is also remarkably quiet compared to a gas engine, operating at about 3 times quieter volume, which is a real benefit for early morning or late evening mowing.

Versatility is a strong point here. The mower supports mulching, bagging, side-discharge, and turbo leaf pickup with the included attachments. This 4-in-1 flexibility means you can adapt to seasonal lawn conditions without buying extra parts. The folding aluminum handles save up to 70 percent of storage space, and the single-lever height adjustment makes changing cut height quick. An LED headlight allows for flexible mowing times when daylight is limited. One honest limitation is the self-propulsion. This model does not offer the variable-speed thumb control found on the EGO. The drive system is a simple push-button engagement, and the speed is fixed, which can feel either too fast or too slow on uneven terrain. Another limitation is that the 4.0Ah battery is adequate for half an acre only on flatter lawns; if your yard has significant slopes, you may need a second battery to finish.

Ryobi 40V HP 20″ — Best Budget Electric Mower

The Ryobi 40V HP 20-inch mower proves that you do not need to spend a premium to get reliable cordless mowing. The brushless motor provides more power and longer motor life compared to the brushed alternatives that dominate the budget category. This motor also improves run time efficiency, so the 40V battery is enough for lawns up to about a quarter acre. The 20-inch deck is smaller than the 21-inch competitors, but that reduction keeps the overall weight manageable at around 50 pounds. That lighter weight makes the Ryobi easy to push and maneuver, especially if you have a smaller yard with tight corners or flower beds.

Being part of the Ryobi 40V platform is a practical advantage. Ryobi offers a huge range of tools that share the same battery, from leaf blowers to string trimmers, so if you already own other Ryobi 40V tools, this mower is a seamless addition. The brushed motor models in this price range often struggle with thick grass, but the HP brushless motor here handles typical home lawns without stalling. One real limitation is the run time. The included battery is likely a 4.0Ah or 5.0Ah pack, but Ryobi does not always include the largest capacity with the base model, so you might need to budget for an extra battery if your lawn is closer to a third of an acre. Another limitation is the cutting deck material; it is a hybrid plastic and steel design, which is lighter but may not hold up as well over many seasons as a full steel deck.

Husqvarna Automower 450X — Best Robotic Electric Mower

The Husqvarna Automower 450X is for homeowners who want to completely eliminate mowing time from their weekly routine. This robotic mower navigates up to 1.25 acres using a boundary wire system that you install around the perimeter of your lawn. It works in rain, so you do not have to worry about wet grass stopping its schedule, and it automatically returns to its charging base when the battery runs low. The mowing frequency is programmed either through a smartphone app or the built-in display, allowing you to set a schedule that keeps your grass consistently short without any manual effort.

The 450X uses a random pattern navigation system that covers the entire lawn over several passes, and it handles slopes up to 25 degrees. The cutting system is a pivoting blade disc that mulches clippings into fine particles, which act as natural fertilizer. Because it mows daily or every other day, the clippings are small enough to disappear into the lawn. One real limitation is the initial setup. Laying the boundary wire around a 1.25-acre property is a significant weekend project, and you need to bury the wire or secure it with pegs to prevent damage from foot traffic or pets. Another limitation is the price. The Automower 450X costs considerably more than any traditional push mower, and it still requires occasional blade replacement and wire maintenance. It is a luxury convenience, not a budget solution.

Kobalt 80V 21″ — Best Mulching Electric Mower

The Kobalt 80V 21-inch mower earns its reputation on the strength of its mulching performance. The dual-blade mulching system chops clippings into fine pieces that decompose quickly and return nutrients to the soil, which is better for lawn health than bagging. The 21-inch steel deck paired with the 80V brushless motor provides ample torque to handle medium yards even when the grass is slightly damp. The included 5Ah battery delivers up to 50 minutes of run time on level ground, which is enough for most typical suburban lots.

Mulching is not just about the blades. The Kobalt’s deck design creates a vacuum that lifts grass before cutting, and the dual blades work in sequence to make multiple cuts per pass. The result is a clean, even look without clumps of clippings left on top. The mower also supports bagging and side-discharge if you prefer those methods. The 80V platform means the mower shares batteries with other Kobalt 80V outdoor tools, which is convenient if you already own that system. One real limitation is that the self-propulsion system on this model is not as refined as the EGO. The speed control is a simple dial with preset speeds, and it can feel jerky on uneven terrain. Another limitation is the replacement blade availability. Aftermarket blades may not fit perfectly, and the OEM blades can be harder to find compared to the more common 21-inch universal blades.

What to look for

• Battery voltage and capacity: Higher voltage (56V, 80V) generally means more torque for thick grass. Capacity (Ah) determines run time. Match both to your yard size.
• Deck size: 20-inch decks are lighter and better for small, tight yards. 21-inch decks cover more ground per pass and are better for medium to large lawns.
• Cutting system: Single-blade mowers are fine for basic needs. Multi-blade or dual-blade systems provide finer mulching and a cleaner cut, especially in damp grass.
• Self-propulsion quality: Variable-speed trigger control (like EGO’s Touch Drive) offers the best walking-pace matching. Dial-based systems are less responsive but still helpful on slopes.
• Mulching versus bagging: If you want to return nutrients to your lawn, prioritize a mower with a dedicated mulching blade or dual-blade system. Some mowers mulch well, others only bag side-discharge effectively.
• Storage footprint: Foldable handles and collapsible designs save garage space. Check the folded dimensions if you have limited storage.
• Battery platform compatibility: If you already own tools from a brand like Ryobi, Greenworks, or Kobalt, a mower that shares that battery system saves money on extra batteries.
• Robotic versus manual: Robotic mowers require boundary wire installation and a higher upfront cost but eliminate weekly labor. Manual mowers give you more control over cutting height and pattern.

The verdict

The EGO Power+ LM2135SP is the clear winner for most homeowners because it combines the best cutting quality, longest run time, and most intuitive self-propulsion in one package. If your yard is a half acre or less and you want gas-like performance without the noise and maintenance, this is the mower to buy. The Greenworks Pro 80V is a strong alternative for those on a tighter budget who still need high-voltage torque for thick grass. The Ryobi 40V HP is the smart choice for small lawns and budget-conscious buyers who value a lightweight machine. The Husqvarna Automower 450X is a luxury investment for anyone who despises mowing and has the acreage to justify the cost. And the Kobalt 80V is the specialist for mulching enthusiasts who want to feed their lawn naturally. Choose based on your priority: cutting quality, price, autonomy, or mulching. Each of these five mowers excels in its designated role.