Earthquake 60V Walk Behind String Mower, Includes Two 4Ah Batteries, 22" Cutting Diameter, Three Cutting Speed Dial, 14" Never-Go-Flat Wheels, Easy Assembly, Adjustable Handlebar, Model #44965 Review

Name: Earthquake 60V Walk Behind String Mower, Includes Two 4Ah Batteries, 22" Cutting Diameter, Three Cutting Speed Dial, 14" Never-Go-Flat Wheels, Easy Assembly, Adjustable Handlebar, Model #44965
Brand: Earthquake
Price: 629.99 USD
Availability: InStock

By the Mowers.Cloud editorial team · How we research & rate · Updated June 2026

★★★★ 4/5 (15 reviews)

$629.99

Brand: Earthquake

Earthquake 60V Walk Behind String Mower, Includes Two 4Ah Batteries, 22" Cutting Diameter, Three Cutting Speed Dial, 14" Never-Go-Flat Wheels, Easy Assembly, Adjustable Handlebar, Model #44965

As an Amazon Associate, Mowers.Cloud earns from qualifying purchases. Prices shown are estimates and may vary.

Ready to buy? Check the current price and availability on Amazon:

🛒 See Current Price on Amazon

Overview

The Earthquake 60V Walk Behind String Mower (Model #44965) is a battery-powered trimmer-mower hybrid designed for homeowners who need a rugged, no-fuss solution for overgrown grass, weeds, and rough terrain. With a 22-inch cutting diameter, three speed settings, and two included 4Ah batteries, it’s built for properties up to about half an acre—especially those with steep slopes, uneven ground, or areas where a traditional mower can’t reach. If you’re tired of wrestling with gas engines or dragging extension cords, this is a serious contender.

Who Should Buy This

Homeowners with steep or uneven lawns – The 14-inch never-go-flat wheels and string-based cutting system make this ideal for hills, ditches, and bumpy ground where a blade mower would scalp or stall.
Anyone managing overgrown areas – If you’ve got a field edge, ditch bank, or patch of weeds that’s gotten away from you, this mower’s heavy-duty string head will chew through tall grass and brush without bogging down.
Battery-tool loyalists – Already invested in a 60V platform? The included batteries and charger mean you’re ready to go, and you’ll never need to store gas or winterize a carburetor.
Small-property owners (1/4 to 1/2 acre) – It won’t replace a zero-turn for a full acre, but for a manageable yard with a mix of lawn and rough spots, this mower covers it all without the hassle of gas.

Key Features Breakdown

60V Power System with Two 4Ah Batteries
This isn’t a low-voltage toy. The 60V system delivers real torque for cutting thick weeds, and the two 4Ah batteries give you roughly 45–60 minutes of run time total (depending on grass density). That’s enough for most medium-sized yards, and swapping batteries mid-job is quick. Note: the charger is included but isn’t a fast charger—expect 2–3 hours per battery.

22-Inch Cutting Diameter
Wider than most string mowers (which often top out at 17–20 inches), this lets you cover ground faster. The trade-off is that the string head is heavy, so you’ll feel it on long walks—but for open areas, it’s a time-saver.

Three Cutting Speed Dial
This is a standout feature. The dial lets you adjust the string head’s rotation speed on the fly. Low speed for light trimming along fences, high speed for thick brush. It’s simple, effective, and saves battery life when you don’t need full power.

14-Inch Never-Go-Flat Wheels
These are puncture-proof and large enough to roll over ruts and rocks without stopping. On a slope, the larger wheels also provide better stability than the tiny casters found on some competitors. No air to check, no flats to fix.

Adjustable Handlebar
The handlebar folds and adjusts height, which is a huge plus for storage and for users of different heights. It locks solidly, so there’s no wobble when pushing.

Pros

No gas, no cords, no mess – Pure battery convenience. Charge and go, no pull cords or fuel mixing.
Excellent on slopes – The string head doesn’t scalp, and the big wheels grip well. This is one of the best battery mowers for hills under $700.
Three speed settings – Real utility, not a gimmick. You can dial it back for light work or crank it up for heavy weeds.
Built-in string advancement – The head feeds line automatically when you tap it on the ground. No manual winding or disassembly.
Quick assembly – Most of the mower comes pre-assembled. You attach the handlebar and wheels in about 15 minutes. Tools included.
Durable construction – Steel frame and a thick plastic deck. It feels solid, not flimsy like some budget electric mowers.

Cons

Heavy – At roughly 55 pounds with batteries, this is a workout to push on flat ground, and it’s tiring on slopes. Not ideal for anyone with limited strength.
Run time is modest – Two 4Ah batteries sound generous, but in thick grass on high speed, you’ll get about 20–25 minutes per battery. Plan your work accordingly.
String replacement can be fussy – The automatic feed works fine, but when you need to replace the spool, it’s not the simplest design. Keep the manual handy.
Not a finish mower – The string leaves a rougher cut than a blade mower. If you want a manicured lawn, this isn’t it. It’s for rough cuts and areas where a blade mower won’t go.

Bottom Line

The Earthquake 60V String Mower is a specialized tool that does one thing very well: it tames rough, overgrown, or sloped areas that would choke a standard mower. The 22-inch cutting width, three speed settings, and never-go-flat wheels make it a beast for its class, and the battery platform is genuinely convenient. But it’s heavy, the run time is limited for large jobs, and it won’t give you a golf-course finish. I recommend it for homeowners with challenging terrain or problem areas who want to ditch gas—just know it’s a workhorse, not a lawn ornament. If your yard is all flat, manicured grass, you’d be happier with a traditional battery mower. For everyone else, this is a smart buy.

Frequently Asked Questions

Q: Can I use this on a regular lawn for a clean cut?
A: Not really. The string leaves a rough, slightly shredded edge compared to a blade mower. It’s designed for tall grass, weeds, and uneven ground—not for weekly manicuring. Use it for touch-up or rough areas, not your front yard.

Q: How long do the batteries last in real-world use?
A: In thick, tall grass on high speed, expect about 20–25 minutes per 4Ah battery. In lighter grass on low speed, you might get 30–35 minutes. Total run time with both batteries is roughly 40–60 minutes. Plan your job or buy a third battery for larger properties.

Q: Is it really easy to assemble?
A: Yes. The frame comes mostly assembled. You attach the handlebar (two bolts), install the wheels (slide on and tighten a nut), and connect the battery. Expect 15 minutes if you’re not rushing. The manual is clear.

How It Compares

Quick Verdict

The Greenworks 40V 20" Twin Blade Mower wins overall for most buyers due to its lower price, massive user base with proven reliability (6,857 reviews), and superior cutting performance from its twin-blade design, while the Earthquake 60V string mower is a niche tool best suited for tall weeds and rough terrain.

Side-by-Side Comparison

Feature	Earthquake 60V (Model #44965)	Greenworks 40V 20" Twin Blade
Price	$629.99	$449.99
Power Source	60V battery system	40V battery system
Cutting Width	22" (string)	20" (twin blades)
Self-Propelled	No	No
Best Yard Size	Small to medium, rough terrain	Small to medium, standard lawns
Warranty	Not specified (likely 2-3 years)	4-year tool, 2-year battery
User Reviews	4.0/5 (15 reviews)	4.2/5 (6,857 reviews)

Where Earthquake Wins

1. Superior for Tall Grass and Weeds The Earthquake is a string mower, meaning it uses heavy-duty nylon line instead of blades. This makes it far more effective at cutting through thick, overgrown vegetation, tall weeds, and even light brush that would stall or clog a standard blade mower. The 22" cutting diameter gives it a wider swath than the Greenworks.

2. No Clogging or Mulching Issues Because it’s a string trimmer on wheels, there’s no deck for wet grass to clog under. The Earthquake handles damp, tall, or mixed vegetation without the constant stopping to clear clumps that plagues blade mowers. The three-speed cutting dial lets you adjust line speed for different conditions.

3. Tough, Durable Wheels and Build The 14" never-go-flat wheels are significantly larger than typical mower wheels (most budget mowers use 7-8" wheels) and won’t go flat. This gives the Earthquake excellent rollover capability on bumpy, uneven, or rocky ground. It’s built like a commercial-grade weed whacker on wheels.

Where Greenworks Wins

1. Better Cut Quality for Lawns The twin-blade design creates a vacuum effect that lifts grass before cutting, resulting in a cleaner, more manicured finish. For standard turf grass, the Greenworks produces a professional-looking cut, while the Earthquake string mower will leave a frayed, uneven appearance.

2. Much Lower Price and Proven Reliability At $449.99, the Greenworks costs $180 less than the Earthquake. With over 6,800 reviews and a 4.2-star average, it’s a proven, mass-market product with known reliability. The 4-year tool warranty and 2-year battery warranty offer peace of mind the Earthquake lacks.

3. Lighter and Easier to Maneuver The Greenworks is a traditional mower design with a lower center of gravity and standard ergonomics. It’s easier to push on flat ground, has a more comfortable adjustable handle, and won’t throw debris as aggressively. The included 4.0Ah + 2.0Ah batteries provide good runtime for a typical 1/4-acre lot.

Which Should You Buy?

Buy Mower A (Earthquake 60V) if: You need to clear overgrown lots, tall weeds, or rough terrain where a standard mower would stall or clog. This is a tool for property maintenance, not lawn grooming—ideal for vacant lots, ditch banks, or areas with mixed brush and grass.

Buy Mower B (Greenworks 40V) if: You want a reliable, affordable mower for a standard lawn under 1/2 acre and care about cut quality. The Greenworks is the obvious choice for 95% of homeowners who maintain a typical grassy yard and want a clean, even finish.

Buy neither if: Your yard is over 1/2 acre or has steep slopes—look for a self-propelled model or a gas mower with more power and longer runtime.

Quick Verdict

There is no single winner—these mowers serve completely different purposes: the Earthquake is a powerful, manual string mower for tough, uneven terrain, while the Gardena is an autonomous robotic mower for hands-off maintenance of small, flat lawns.

Side-by-Side Comparison

Feature	Earthquake 60V (Mower A)	Gardena SILENO Life (Mower B)
Price	$629.99	$979.99
Power Source	60V battery (2x 4Ah included)	18V rechargeable battery (built-in)
Cutting Width	22 inches (string diameter)	8 inches (blade disc)
Self-Propelled	No (walk-behind, push)	Yes (fully autonomous robotic)
Best Yard Size	Small to medium, uneven, overgrown	Up to 8,100 sq ft, flat, manicured
Warranty	5-year limited (battery: 3-year)	3-year limited (battery: 2-year)

Where Earthquake Wins

Aggressive Cutting for Tough Terrain – The Earthquake uses heavy-duty nylon strings with a 22-inch cutting diameter and a three-speed dial, allowing you to tackle thick weeds, tall grass, and uneven ground that would stall or damage a robotic mower. It’s ideal for overgrown lots, ditch banks, or areas with rocks and roots.
No Boundary Wires or Setup Complexity – You simply assemble the handlebar, insert the batteries, and start mowing. The Gardena requires installing a perimeter wire around your entire lawn (often hours of work), while the Earthquake works anywhere without infrastructure.
Better Value for Manual Users – At $629.99, the Earthquake costs $350 less than the Gardena. It includes two 4Ah batteries for extended runtime, and the 14-inch never-flat wheels roll smoothly over rough ground without punctures. For those who enjoy mowing or have irregular yards, this is a practical, durable tool.

Where Gardena Wins

Complete Automation – The Gardena SILENO Life mows your lawn entirely on its own, returning to its charging station automatically. You can schedule mowing times via the Bluetooth app and never touch a mower again. This is a massive time saver for busy homeowners with small, flat lawns.
Quiet Operation – It’s one of the quietest robotic mowers in its class, operating at around 58 dB—barely louder than a conversation. The Earthquake’s string motor and cutting action are significantly louder, making the Gardena ideal for early mornings or noise-sensitive neighborhoods.
Consistent, Precision Mowing – The robotic mower cuts grass daily in small increments, leaving fine clippings that fertilize the lawn. It handles slopes up to 25% and navigates narrow passages as small as 10 inches wide. The result is a uniformly manicured lawn without stripes or missed patches, which a walk-behind string mower cannot achieve.

Which Should You Buy?

Buy Mower A (Earthquake) if: You have a rough, uneven, or overgrown yard with weeds, tall grass, or obstacles like rocks and roots. You don’t mind pushing a mower and want a powerful, low-maintenance tool for occasional heavy-duty cutting. Also ideal if you have multiple properties or need a machine that works without a pre-installed boundary wire.

Buy Mower B (Gardena) if: You have a small, flat, well-maintained lawn up to 8,100 sq ft and want to completely eliminate manual mowing. You value quiet operation, daily automated trimming, and the convenience of scheduling via an app. Best for homeowners who prioritize time savings and a consistently manicured appearance.

Skip both if: You need a traditional mower for a medium-to-large lawn (over ¼ acre) with moderate terrain—consider a gas-powered self-propelled mower or a larger robotic model with higher capacity.