Electric lawn mowers have crossed the threshold from compromise to default for most residential lawns under one acre. Battery technology in 56V and 80V platforms now delivers cut quality and runtime that matches or exceeds equivalent gas mowers, with the meaningful advantages of push-button starting, near-zero maintenance, and 20 dB quieter operation. This guide pulls together what top consumer guides recommend across five cordless mowers that consistently rate well for cut quality, runtime per charge, deck size, and value. The right pick depends on lawn size, terrain, and whether you are committing to a specific battery platform across other yard tools.
Comparison Table
| Mower | Voltage | Deck | Self-Propel |
|---|---|---|---|
| EGO Power+ LM2156SP | 56V | 21" | Yes |
| Greenworks Pro 80V CLM801 | 80V | 21" | Push |
| Ryobi 40V Brushless RY401110 | 40V | 21" | Yes |
| Kobalt 80V Max KMP6080-06 | 80V | 21" | Push |
| DeWalt 20V Max | 20V x 2 | 21.5" | Push |
EGO Power+ LM2156SP - Best Self-Propelled Electric
The EGO Power+ LM2156SP is the consensus pick for self-propelled electric mowers and the strongest overall recommendation in this guide for half-acre and larger lawns. The 56V Arc Lithium platform delivers gas-equivalent torque for typical residential cutting conditions, with runtime around 60 minutes on a 7.5Ah battery in average grass. The Peak Power dual-port system accepts two batteries simultaneously, doubling runtime to roughly two hours for larger lawns or tall grass conditions. Variable-speed self-propel adjusts from a slow trim pace to a fast walking pace via a thumb control on the handle. The 21-inch steel deck cuts cleanly with three blade options included (mulching, bagging, side discharge). Cut height adjusts from 1.5 to 4 inches via a single lever. Build quality is the best in this guide. The EGO platform extends across blowers, trimmers, chainsaws, and snow throwers, which makes battery investment compound across tools. The trade is the higher upfront cost and the brand-specific battery commitment. Check current pricing on Amazon.
Greenworks Pro 80V CLM801 - Best 80V Push
The Greenworks Pro 80V CLM801 is the highest voltage push mower in this guide and the right pick for buyers who prioritize raw cutting power over self-propel convenience. The 80V platform delivers more peak torque than the EGO 56V for tall thick grass, dense bermuda, or first-cut-of-spring conditions where lower-voltage mowers bog down. The 21-inch steel deck includes 3-in-1 mulch, bag, and side-discharge functionality. Runtime hits 60 minutes on a 4.0Ah battery, which is competitive given the higher voltage. The brushless motor delivers consistent power throughout the battery discharge rather than slowing as the pack runs down. Quick-charge support brings the battery from empty to full in roughly 60 minutes. The trade is the push-only configuration, which makes large or hilly lawns more tiring than the EGO. Greenworks 80V tools extend across blowers, chainsaws, and string trimmers, though the ecosystem is smaller than EGO. Build quality is solid mid-tier rather than premium. For buyers who want maximum power in a push format at a moderate price, this is the strong pick. Check current pricing on Amazon.
Ryobi 40V Brushless RY401110 - Best Value Self-Propelled
The Ryobi 40V Brushless RY401110 is the value pick when self-propel is wanted at a lower price point than the EGO. The 40V platform is genuinely capable for residential lawns, though the lower voltage shows on tall grass and dense conditions where the EGO 56V and Greenworks 80V handle the load better. The 21-inch deck includes 3-in-1 functionality with adjustable cut height from 1.5 to 4 inches. Self-propel is rear-wheel drive with variable speed control. Runtime on a 6.0Ah battery runs around 50 minutes in average conditions. The brushless motor is quieter and more efficient than older brushed motors in this voltage class. Build quality is decent mid-tier with some lighter plastics on the deck and handle compared to EGO. The Ryobi 40V platform extends across the broadest range of tools (blowers, trimmers, hedge trimmers, snow throwers, even outdoor furniture) which makes the battery investment particularly valuable for buyers committing to a full yard tool ecosystem. The trade is reduced peak power versus higher-voltage competitors. Check current pricing on Amazon.
Kobalt 80V Max KMP6080-06 - Best Lowes Platform Push
The Kobalt 80V Max KMP6080-06 is the Lowes-exclusive 80V push mower and the right pick for buyers committed to the Kobalt tool ecosystem available at Lowes stores. Cutting power is comparable to the Greenworks 80V, with the 80V platform delivering strong torque for tall grass conditions. The 21-inch deck includes 3-in-1 mulch, bag, and side-discharge. Runtime on a 6.0Ah battery runs around 60 minutes in average conditions. The brushless motor is efficient and reliable. Cut height adjusts via a single lever across multiple positions. Build quality is solid mid-tier, similar to Greenworks. The Kobalt 80V ecosystem covers blowers, trimmers, chainsaws, and other yard tools available at Lowes. For buyers who shop Lowes regularly and want a single battery platform, the Kobalt setup is the natural fit. Push-only configuration limits this to lawns where self-propel is not required. The trade is the smaller ecosystem outside Lowes and somewhat thinner long-term reliability data compared to the EGO and Ryobi brands. Check current pricing on Amazon.
DeWalt 20V Max - Best for DeWalt Tool Owners
The DeWalt 20V Max mower fits a specific use case: existing DeWalt 20V tool owners with a battery collection who want a mower that uses the same packs. The dual-battery configuration uses two 20V batteries in series to effectively run at 40V, with runtime depending on battery capacity (typical 5.0Ah pair delivers around 40 minutes). The 21.5-inch deck handles standard residential conditions well, though peak torque sits below the dedicated 56V and 80V mowers in this guide. Cut height adjusts from 1.5 to 4 inches. Build quality is excellent (DeWalt tool fit and finish carries over) and the platform sharing with drills, drivers, saws, and other DeWalt 20V tools is the real selling point. For buyers without existing DeWalt 20V investment, the dedicated 56V or 80V mowers in this guide deliver better cutting power per dollar. For buyers with a garage full of DeWalt 20V tools, this mower extends a familiar ecosystem to lawn care without committing to a second battery platform. Check current pricing on Amazon.
How to choose
Start with lawn size and terrain. Lawns over a quarter acre or with hills strongly favor self-propelled (EGO Power+ LM2156SP or Ryobi 40V). Flat smaller lawns are fine with push mowers (Greenworks 80V, Kobalt 80V, DeWalt 20V). Voltage scales roughly with cutting power: 80V handles tall thick grass best, 56V is the sweet spot for residential use, 40V is fine for typical lawns, 20V is the budget tier that requires dual batteries. Battery platform commitment matters significantly long-term: if you own other EGO, Ryobi, Greenworks, Kobalt, or DeWalt tools already, prioritize the matching mower. Deck size at 21 inches is the residential sweet spot. Always buy a spare battery for any lawn larger than a quarter acre; the second pack pays back in convenience across the season.
For deeper context on outdoor power equipment, see our guide on battery platform comparison for yard tools and our breakdown of electric vs gas lawn mower. Our full testing approach is documented in our methodology.
Frequently asked questions
Can an electric mower really handle a half-acre lawn?+
Yes with the right battery setup. A 56V or 80V mower with a 5.0Ah or larger battery typically runs 45 to 70 minutes per charge, which covers roughly a half acre at a comfortable walking pace. For lawns closer to one acre, plan on two batteries with a fast charger so the second pack is ready when the first runs out. Cut height, grass thickness, and wet conditions all reduce runtime. The EGO Power+ and Greenworks Pro 80V are the most common picks for half-acre and larger residential lawns because of their robust runtime per charge.
Are electric mowers actually as powerful as gas?+
For residential lawns under one acre, yes. Modern brushless motors at 56V or 80V deliver torque comparable to a 160cc gas engine for the typical 1.5 to 2.5 inch cut height in average grass. The advantage shows up in starting reliability (push button versus pull cord), maintenance (no oil changes, no spark plugs, no fuel stabilizer), and noise (75 to 85 dB versus 95 to 100 dB for gas). The disadvantages show up on commercial-scale work, tall wet grass, and runtime limits. For most homeowners, electric has won the value comparison.
How long do mower batteries actually last?+
Battery cycle life is typically 500 to 800 full charge cycles before capacity drops below 80 percent of new, which translates to 5 to 8 years of typical residential use. Storage matters: leave a battery at 50 percent charge in a temperature-controlled space during the off-season, never fully drained or fully charged for months. Heat is the bigger killer than charge cycles. A garage that hits 120F in summer ages batteries roughly twice as fast as a basement at 70F. Plan for a replacement battery purchase around year 5 to 7, which usually costs 150 to 300 dollars depending on capacity.
Self-propelled or push, and is it worth the extra cost?+
For lawns over a quarter acre, hilly terrain, or buyers with mobility concerns, self-propelled is genuinely worth the 100 to 200 dollar premium. The drive system uses the same battery as the cutting motor but adds maybe 5 to 10 percent to total power draw, which means battery runtime drops slightly with self-propel engaged. Flat small lawns under a quarter acre are fine with push mowers, and the lighter weight (without drive components) makes them easier to maneuver in tight spaces. The EGO Power+ LM2156SP and Ryobi 40V are the strong self-propelled picks in this guide.
What deck size do I really need?+
20-inch deck for small lawns and tight yards under a quarter acre, 21 to 22 inch for the typical residential half acre, 24-inch or larger for lawns approaching one acre or open suburban yards with few obstacles. Bigger decks cover more ground per pass but maneuver worse around trees, beds, and fences. They also pull more power and shorten battery runtime per charge. For most US suburban lawns, the 21-inch deck size is the sweet spot, which is why nearly all picks in this guide cluster around that dimension.
Riley Cooper
Riley Cooper writes for The Tested Hub.