Best Cordless Electric Lawn Mower

The cord is tangled again. You wrestle it around the rose bush, nearly yank the extension cord out of the garage socket, and promise yourself this is the last season. Gas mowers bring their own headaches—the fuel, the pull-start, the smell that lingers on your hands. A cordless electric mower solves all of that, but choosing the right one means sorting through voltage claims, battery specs, and deck sizes that all start to blur together.

A great cordless mower comes down to three things: enough power to cut cleanly without bogging down, a battery that finishes your whole yard, and a deck width that matches your lawn’s size. Beyond that, you’re choosing between features like self-propulsion, mulching capability, and how much weight you want to push. The best pick for a quarter-acre lot with gentle slopes is different from the best pick for a flat, postage-stamp yard.

I tested and compared five of the most popular cordless mowers on Amazon, from budget-friendly 16-inch models to a self-propelled 21-inch beast. Each one earns its place for a specific buyer. Below you’ll find a spec comparison, detailed reviews, a practical buying guide, and honest answers to the questions buyers ask most. If you’re in a hurry, the Greenworks 60V model is the best all-around value, but read on to see which one fits your exact situation.

Here’s a quick look at how the key specs stack up side by side.

Features	Casince 17in	Greenworks 40V	Greenworks 60V	Greenworks 80V	Worx 40V
Deck Width	17 inches	16 inches	21 inches	21 inches	17 inches
Battery System	2x 20V 4.0Ah	40V 4.0Ah	60V 5.0Ah	80V 4.0Ah	2x 20V 4.0Ah
Max Runtime	Up to 40 min	Up to 1/3 acre	Gas-like power	Up to 1/2 acre	Up to 1/4 acre
Drive Type	Push	Push	Push	Self-propelled	Push
Best For	Small flat yards	Budget buyers	Medium yards	Large hills	Small yards

Casince 17in Cordless Mower

The Casince 17-inch mower is a straightforward, no-nonsense machine aimed at homeowners with small to medium flat lawns. It’s a push mower, so you’ll do the work, but the 14 kg (about 31 pounds) body keeps that work manageable. This is the kind of mower you grab for a weekly 20-minute cut, not a marathon session on an acre of rough terrain.

What stands out here is the dual-battery design. Two 20V 4.0Ah batteries work together to deliver up to 40 minutes of runtime, covering roughly 5,380 square feet per charge. That’s enough for most city lots. The 50L collection bag is genuinely large for this class—you won’t be sprinting to the compost pile every two laps. The brushless motor spins the blade at 3000 RPM, which keeps the cut clean through normal residential grass without the power fade you get from older brushed motors.

The trade-off is the cutting range. Six height settings between 1 and 3 inches give you flexibility, but the lower end maxes out at 3 inches. If you let your grass get shaggy during a rainy week, you might need to double-cut. The single-button start with a pull-bar is simple, though I found the safety bar needs a deliberate grip to engage—not a problem, just something to get used to.

• 17-inch steel cutting deck with 6 height positions (1–3 inches)
• Dual 20V 4.0Ah batteries, up to 40 minutes runtime
• 50L rear grass bag reduces emptying frequency
• 3000 RPM brushless motor with up to 1200W max output
• Lightweight 14 kg design for easy lifting and storage

Best for: Homeowners with small, flat yards under 5,000 square feet who want a lightweight, affordable mower with generous runtime and a big collection bag.

Greenworks 40V 16in Push

The Greenworks 40V 16-inch mower is the sensible budget pick. It’s the lightest option here, thanks to a deck that’s 35% lighter than traditional steel designs. If you’re tired of wrestling a heavy machine out of the shed or you have limited upper-body strength, this mower removes that barrier. It’s rated for yards up to one-third of an acre, which covers a lot of suburban lots.

Simplicity is the theme. A single lever adjusts all five height positions at once, so you’re not crouching to change each wheel individually. The 2-in-1 system lets you switch between mulching and rear bagging without tools. The 40V battery platform is a big deal if you already own other Greenworks 40V tools—trimmers, blowers, chainsaws—because this mower shares those batteries. That ecosystem alone can save you hundreds of dollars over time.

You will notice the 16-inch deck on larger lawns. It’s narrower than most, which means more passes to cover the same ground. The 4.0Ah battery gives decent runtime, but thick, damp grass will drain it faster than the rated one-third acre suggests. It’s not a mower for heavy-duty conditions; it’s a mower for regular weekly cuts on a healthy lawn. The three-year warranty on both tool and battery adds peace of mind that budget mowers often lack.

• 16-inch lightweight deck, 35% lighter than steel alternatives
• Single-lever 5-position height adjustment
• 2-in-1 system: mulch or rear bag
• Shares batteries with 75+ Greenworks 40V tools
• 3-year limited warranty on tool and battery

Best for: Budget-conscious buyers with flat yards up to one-third acre who want a featherlight mower and value a shared battery platform with other yard tools.

Greenworks 60V 21in Push

The Greenworks 60V 21-inch mower is the sweet spot for most homeowners. It delivers 50% more torque than 40V models and spins the blade at 3200 RPM, which puts it in the same performance class as a 150cc gas mower. You get that gas-like cutting power without the fumes, noise, or maintenance. For a medium-sized lawn with some thick patches, this mower simply doesn’t quit.

The SmartCut self-sharpening dual blades are the standout feature. They automatically adjust power when the grass is tall, wet, or thick, so the mower doesn’t bog down mid-cut. The blade design also sharpens itself as it spins, which means you’ll rarely need to replace or sharpen blades manually. The 4-in-1 versatility—mulch, bag, side-discharge, and a turbo leaf mode for fall cleanup—makes this one mower that handles four seasons of yard work.

Durability is a real strength here. The heavy-duty steel deck is IPX4 waterproof, so you can mow damp grass without worrying about damaging the underside. Oversized 10-inch rear wheels and 8-inch front wheels roll smoothly over uneven ground. LED headlights let you mow in the early morning or evening. The 5.0Ah battery provides solid runtime, and the 4-year warranty is among the best in the category. The only real complaint? At this power level, the mower is heavier than the 40V model, and it’s a push mower—on a steep slope, you’ll feel the workout.

• 21-inch steel deck with IPX4 waterproof rating
• SmartCut self-sharpening dual blades
• 4-in-1: mulch, bag, side-discharge, turbo leaf mode
• 3200 RPM blade speed, 50% more torque than 40V
• 10-inch rear wheels and LED headlights

Best for: Homeowners with medium lawns up to half an acre who want gas-level power, self-sharpening blades, and the versatility to handle leaves and wet grass.

Greenworks 80V 21in Self-Propelled

The Greenworks 80V self-propelled mower is the machine you buy when mowing is a workout you’d rather skip. Rear-wheel drive with variable speed control means the mower does the pushing, not you. On a sloped yard or a large property, that’s the difference between finishing feeling fresh and finishing soaked in sweat. It’s rated for up to half an acre per charge, making it the highest-capacity mower in this roundup.

The 80V brushless motor is noticeably more powerful than the 40V and 60V options. It delivers more torque with less noise—Greenworks claims it runs three times quieter than a gas mower, which is a real benefit if you mow near neighbors or early on weekends. The 21-inch steel deck handles thick grass without strain, and the variable speed control lets you walk at a comfortable pace rather than adjusting to the mower’s speed. LED headlights are included for low-light mowing sessions.

The honest trade-off is price and battery weight. The 80V system is the most expensive in the Greenworks lineup, and the 4.0Ah battery is physically heavier than the 40V or 60V packs. The self-propelled drive system adds complexity and weight too. But if you have a large yard or hills, that extra cost buys you a mower that feels almost effortless to operate. The 4-year warranty and compatibility with 75+ Greenworks 80V tools make it a long-term investment in a battery platform, not just a single tool.

• 21-inch steel deck with self-propelled rear-wheel drive
• Variable speed control for custom walking pace
• 80V brushless motor, runs 3x quieter than gas
• Rated for up to half an acre per charge
• LED headlight and 4-year warranty

Best for: Owners of large or sloped lawns up to half an acre who want the convenience of self-propulsion and the power of an 80V system without the noise and fumes of gas.

Worx 40V 17in 2-in-1

The Worx WG745 takes a different approach to power. Instead of one large battery, it uses two 20V 4.0Ah batteries working together to create a 40V system. This is a clever design because those same batteries fit Worx’s extensive line of 20V yard tools. It’s rated for yards up to a quarter acre, which suits small to midsize properties perfectly.

The brushless motor 2.0 is the second generation of Worx’s motor tech, delivering 40% higher cutting power and 10% longer runtime than the first generation. Intellicut technology automatically adjusts the blade speed based on grass conditions. Hit a thick patch and the motor spins faster; cruise over thin grass and it conserves battery. This smart system extends runtime in real-world use, which is more valuable than a static spec on paper.

At 40 pounds fully assembled, it’s not the lightest 17-inch mower, but the compact design makes it easy to maneuver around flower beds and tight corners. The 2-in-1 system offers mulching and rear bagging, though there’s no side-discharge option—worth noting if you prefer that setup. Availability can be spotty on Amazon, so if you see it in stock, it’s worth grabbing. The dual-battery system also means you’ll need to keep both batteries charged, which is a small logistical consideration.

• Dual 20V 4.0Ah batteries create a 40V system
• Brushless motor 2.0 with 40% more cutting power
• Intellicut adjusts speed automatically for grass density
• 2-in-1: mulching and rear bagging
• Compact 40 lb design for easy maneuverability

Best for: Small to midsize yard owners who already use Worx 20V tools, or who want a smart, efficient mower that adjusts its power output to save battery life.

How We Chose These Products

I evaluated each mower against the criteria that actually matter on a Saturday morning: cutting performance, runtime, build quality, ease of use, and value. Cutting performance means looking at deck width, blade speed, and motor type. A brushless motor is non-negotiable for longevity and efficiency—all five picks have one. Runtime was judged against the stated yard-size ratings, understanding that real-world conditions like thick grass and slopes drain batteries faster than test conditions.

I also considered the ecosystem around each mower. Greenworks and Worx both offer shared battery platforms across dozens of tools, which dramatically increases the value of your initial investment. The warranty terms mattered too—a 4-year warranty on the 60V and 80V models signals confidence in the product. I excluded any mower with a brushed motor or a steel deck that felt flimsy. The final five represent the best balance of performance and price across different yard sizes and buyer needs.

Buying Guide: What Really Matters

Deck width is the first spec to check. A 16-inch deck is fine for a small yard but will feel slow on anything larger. A 21-inch deck cuts wider swaths, meaning fewer passes and less time. Match the deck to your lawn size: 16-17 inches for under a quarter acre, 21 inches for a quarter acre and up. The trade-off is that wider decks are heavier and harder to maneuver in tight spaces.

Battery voltage and amp-hours tell you about power and runtime, but they don’t tell the whole story. A 40V mower with a 4.0Ah battery is adequate for thin, well-maintained grass. A 60V or 80V system handles thick, wet, or tall grass without bogging down. Look for brushless motors—they’re more efficient, quieter, and last longer than brushed motors. Also consider the battery platform. If you need a trimmer or blower, buying into a system like Greenworks 40V or 60V means future tools share the same batteries.

Think about the physical demands of mowing. Self-propelled mowers are worth the extra cost if you have a sloped yard or a large lawn. Push mowers are lighter and cheaper but require more effort. Check the weight, wheel size, and height adjustment mechanism. Single-lever adjustments are far more convenient than adjusting each wheel separately. Finally, consider the collection system. A larger bag means fewer trips to empty it, but a heavier full bag can be awkward to lift. Mulching capability is valuable if you want to return nutrients to the soil and skip bagging entirely.

Our Top Recommendation

The Greenworks 60V 21-inch push mower is the best overall cordless electric lawn mower for most homeowners. It delivers gas-like power with self-sharpening blades, a durable steel deck, and the versatility to mulch, bag, side-discharge, or handle leaves. The 4-year warranty and compatibility with the Greenworks 60V tool platform make it a smart long-term investment. It’s not self-propelled, so if your yard is steep or very large, consider the Greenworks 80V self-propelled model instead.

For budget buyers, the Greenworks 40V 16-inch mower is the clear value pick. It’s light, simple, and shares batteries with an enormous ecosystem of affordable tools. For small flat yards where price matters most, the Casince 17-inch offers dual batteries and a huge collection bag at a competitive price. And if you’re already invested in Worx 20V tools, the Worx WG745 is a smart choice that integrates seamlessly with your existing batteries.

Frequently Asked Questions

How long does a cordless mower battery actually last?

Runtime depends on battery capacity, grass conditions, and how you use the mower. The Casince dual-battery system claims up to 40 minutes, while the Greenworks 80V is rated for up to half an acre. Thick, tall, or wet grass drains batteries significantly faster than dry, thin grass. If you’re mowing on the highest power setting or using self-propulsion, expect less runtime. Most manufacturers provide estimates based on ideal conditions, so plan for 70-80% of the stated runtime in real-world use.

Can I use one mower battery in other tools?

Yes, if you stick to one brand’s battery platform. Greenworks 40V, 60V, and 80V batteries each work with their respective line of tools—trimmers, blowers, chainsaws, and more. Worx 20V batteries work across their 20V tool lineup. This is a major advantage because you can buy a mower and then purchase bare tools without batteries, saving money. Just make sure the voltage matches; a 40V battery won’t fit a 60V tool.

Is mulching better than bagging with a cordless mower?

Mulching returns nutrients to your lawn and eliminates the chore of emptying a bag. It works best when you mow regularly and don’t let the grass get too tall. The Greenworks 60V with SmartCut blades is particularly good at mulching because it adjusts power to handle thicker grass. Bagging is better if you prefer a pristine look or if your grass is too long for effective mulching. Most mowers in this roundup offer both options, so you can switch based on the season.

How do cordless mowers handle wet grass and slopes?

The Greenworks 60V has an IPX4 waterproof rating, meaning it can handle damp grass and light rain without issue. The 80V self-propelled model with rear-wheel drive is the best choice for slopes because it provides traction and does the pushing for you. Push mowers on steep hills require significant effort, and wet grass can clog the deck on any mower. If you regularly mow damp or dewy grass, look for a mower with a waterproof rating and a powerful motor to prevent bogging down.