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Trimming lawn borders, clearing fence lines, and managing thick brush requires balancing power, line capability, and physical ergonomics. When conducting a greenworks weed wacker comparison, property owners must navigate distinct voltage platforms, motor efficiencies, and cutting swaths to find the ideal match for their routine. Selecting which greenworks weed wacker to buy involves choosing between lightweight compact units designed for tight suburban borders and high-output tools capable of clearing wide swaths of dense overgrowth in single passes.
Greenworks organizes its cordless string trimmer lineup across three core battery platforms: 40V, 60V, and 80V. The 40V ecosystem targets everyday residential upkeep, emphasizing lightweight frames, quiet operation, and multi-tool bundle versatility that works alongside other residential equipment like Greenworks lawn mowers. The 60V tier bridges standard consumer tools and commercial-grade output, adding brushless motors, heavy line gauges, and rapid spool reloading for large acreage. Meanwhile, the 80V platform provides maximum voltage and fast recharge cycles for demanding, dense landscaping tasks.
This guide by the numbers
9.8/10
Best rated model
Our highest score in this line-up
6
Models on file
Models in this guide that have a stored product record
1
Brand involved
Distinct brand names on the product records used here
Prices and specifications come from the stored Amazon listing data for the products in this article. Scores are out of 10, based on listed specifications and buyer feedback.
Greenworks Weed Wacker Lineup at a Glance
| Model | Voltage Platform | Cutting Swath | Line Specs and Feed | Key Hardware Features |
|---|---|---|---|---|
| Greenworks 40V 12 in String Trimmer | 40V (2.0 Ah) | 12 inches | 0.065-inch single line, Auto-feed | Bundled 390 CFM / 110 MPH leaf blower, 8 lb trimmer build, 67 dB operation |
| Greenworks 80V 16 in Cordless String | 80V (2.0 Ah) | 16 inches | 0.080-inch dual line, Bump feed | Brushless motor, 6500 RPM, variable speed trigger, 30-minute rapid charge |
| Greenworks 60V 16 in Cordless String | 60V (2.5 Ah) | 16 inches | 0.095-inch dual line, Spin-to-Load | Brushless motor, 6000 RPM, 360-degree rotating handle, 68 dB operation |
| Greenworks 40V 13 in Cordless String | 40V (2.0 Ah) | 13 inches | 0.065-inch line, Auto-feed | 2-in-1 edger conversion, 7-position pivoting head, telescoping shaft, 9000 RPM |
| Greenworks 60V 13 in String Trimmer | 60V (4.0 Ah) | 13 inches | 0.080-inch dual line, Bump feed | Bundled 540 CFM / 140 MPH turbo blower, 6500 RPM, 4-year warranty |
| Greenworks 40V 15 in Cordless String | 40V (2.0 Ah) | 15 inches | 0.085-inch dual line, Bump feed | TORQDRIVE system with 30% more torque, 5500 RPM, 2-speed selector |
The Models in Detail
01
Greenworks 40V 12 in String Trimmer

Greenworks 40V 12 in String Trimmer
Best for: Suburban homeowners wanting a lightweight yard combo
Pros
- Bundled 390 CFM leaf blower
- Lightweight 8-pound trimmer build
- Quiet 67 dB operation
Cons
- Narrow 12-inch cutting width
- Thin 0.065-inch line
The Greenworks 40V 12 in String Trimmer comes packaged as a multi-tool outdoor maintenance kit paired with an axial leaf blower. Engineered for straightforward yard detailing, this greenworks 40v weed wacker features a 12-inch cutting width powered by an auto-feeding head wound with 0.065-inch trimmer line. The listing specifies that the trimming head carries a 3-year warranty and cleanly slices through weeds up to 1 inch thick along garden borders, fences, and walkways without requiring manual line bumping during operation.
As part of a complete property maintenance setup, the bundled leaf blower delivers air performance measuring up to 110 MPH and 390 CFM, featuring built-in cruise control to clear leaves, grass clippings, and driveway debris effortlessly. The trimmer itself features an 8-pound balanced build, while the combined package ships at 16.5 pounds. Operating at a low sound rating of 67 dB, the system is quiet enough for early morning work around residential properties. Power is supplied by an included 2.0 Ah lithium-ion battery that recharges in 60 minutes and swaps seamlessly across the 8-plus tools in this Greenworks platform.
This entry-level kit is tailored for small suburban yards, patio owners, and townhome residents seeking a lightweight combination tool to detail edges and immediately blow away stray clippings. While effective for manicured lawns, users facing large expanses of dense weeds or broad fence lines will find the narrow 12-inch swath and 0.065-inch line less efficient than wider, higher-voltage alternatives.
02
Greenworks 80V 16 in Cordless String

Greenworks 80V 16 in Cordless String
Best for: Large property owners needing maximum cutting power
Pros
- High-output 80V brushless motor
- Wide 16-inch cutting path
- Fast 30-minute recharge time
Cons
- 30-minute average runtime
- Heavy 16-pound tool weight
Built for demanding properties and aggressive overgrowth, the Greenworks 80V 16 in Cordless String trimmer operates on the manufacturer’s highest consumer voltage tier. It incorporates a high-efficiency brushless motor that spins up to 6500 RPM, delivering strong torque to clear stubborn weeds without bogging down. The cutting head uses a wide 16-inch cutting path threaded with durable 0.080-inch dual line, using a traditional bump feed line advancement system to release additional line on the fly.
The tool includes a variable-speed trigger, allowing users to modulate cutting power to safely navigate around fragile garden plots, shrubs, and ornamental features. A 2.0 Ah 80V lithium-ion battery and compatible charger come in the box, delivering an average operating life of 30 minutes alongside a rapid 30-minute recharge capability. The tool measures 65 inches in length by 7.5 inches in width, finished in silver, black, and green, with an overall item weight listed at 16 pounds.
This greenworks 80v string trimmer is ideal for owners of large rural or semi-rural properties who need fast cut speeds and substantial clearing authority across expansive perimeters. However, those who require prolonged continuous runtimes on a single pack or who prioritize a light, fatigue-free frame may prefer stepping across to the 60V or lighter 40V models.
03
Greenworks 60V 16 in Cordless String

Greenworks 60V 16 in Cordless String
Best for: Acreage owners clearing thick brush and vines
Pros
- 10-second Spin-to-Load head
- Heavy-duty 0.095-inch dual line
- Long 65-minute battery runtime
Cons
- Requires 60V platform investment
The Greenworks 60V 16 in Cordless String trimmer (model ST60L254) provides heavy-duty residential clearing, powered by a brushless motor running at 6000 RPM that matches the performance of a 26cc gas engine. The listing highlights its ability to cut through 1-inch thick blackberry vines and tough kudzu. The 16-inch cutting swath utilizes a thick 0.095-inch dual line, paired with an innovative Spin-to-Load head design that allows users to reload fresh line in roughly 10 seconds simply by twisting the outer housing and pulling, bypassing manual head disassembly.
Ergonomics and endurance are primary design focal points. Weighing 11.2 pounds with the battery installed, the trimmer features a 360-degree rotating auxiliary handle engineered to reduce wrist strain by 40 percent during border detailing. The included 2.5 Ah battery charges in 45 minutes and provides an average battery life of 65 minutes, capable of managing up to 1.5 acres per charge. Emitting only 68 dB of operational sound, the tool operates under a 4-year full warranty covering both the tool body and battery pack, functioning within Greenworks’ 75-plus tool 60V family.
This greenworks 60v string trimmer suits homeowners with large lots, ditches, and extensive fence lines who demand commercial-grade cutting power without gas maintenance. While exceptionally capable on rugged weeds, it gives ground to the 40V 13-inch unit when fine edging guidance and telescoping length adjustments take priority.
04
Greenworks 40V 13 in Cordless String

Greenworks 40V 13 in Cordless String
Best for: Gardeners prioritizing crisp sidewalk and border edging
Pros
- 2-in-1 trimmer and edger conversion
- 7-position pivoting cutting head
- Adjustable telescoping shaft
Cons
- Narrower 13-inch cutting swath
- Lighter 0.065-inch line
Designed for precise perimeter sculpting and ergonomic versatility, the Greenworks 40V 13 in Cordless String trimmer features a dedicated 2-in-1 conversion system. A simple mechanical adjustment quickly transitions the machine from horizontal trimming to vertical wheeled edging, supported by a built-in steel edging guide for crisp lawn borders. Its cutting head spins at 9000 RPM across a 13-inch cutting swath, using 0.065-inch auto-feed line capable of managing weeds up to 1.5 inches thick.
The physical structure is highly adaptable, featuring a telescoping aluminum shaft that adjusts between 40 and 52 inches to accommodate operators from 5’2″ to 6’4″ in height. It also integrates a 7-position pivoting head with specialized angles for reaching under low decks, detailing sidewalk lines, tracing fence posts, and edging flower beds. The bare tool weighs 5.18 pounds, rising to 6.9 pounds fully assembled (9.9 pounds item shipping weight). The included 2.0 Ah battery provides 40 minutes of average runtime with sound output measured at 78 dB. The unit is supported by a 3-year tool and 2-year battery warranty within a 100-plus tool 40V ecosystem, making it a prominent option in any comprehensive greenworks weed wacker overview.
This model is the ideal choice for residential gardeners, vloggers, and hobbyists who want ultra-sharp sidewalk borders and customizable shaft lengths to reduce back strain. However, the thinner 0.065-inch string and moderate 13-inch swath are unsuited for clearing dense roadside brush or tough woody stalks.
05
Greenworks 60V 13 in String Trimmer
Best for: Medium property owners seeking high-capacity maintenance
Pros
- High-capacity 4.0 Ah battery
- Bundled 540 CFM turbo blower
- Durable 0.080-inch dual line
Cons
- Listing omits exact runtime minutes
- 22-pound combined package weight
The Greenworks 60V 13 in String Trimmer kit (model STBA60B412) combines high-voltage trimming with post-cut surface clearing by pairing a 13-inch string trimmer with a high-velocity axial leaf blower. Powered by an included high-capacity 4.0 Ah 60V lithium-ion battery, this combo delivers sustained output across medium to large properties. The trimmer operates at 6500 RPM, employing a 13-inch cutting width threaded with durable 0.080-inch dual line managed via a responsive bump feed head.
The companion blower enhances workflow by producing up to 540 CFM of air volume and speeds reaching 140 MPH, supplemented by a dedicated turbo mode for dislodging wet, compacted yard waste. The combined package weighs 22 pounds and measures 66.16 inches long by 10.7 inches wide. Both the trimmer and leaf blower benefit from Greenworks’ comprehensive 4-year limited tool and battery warranty, providing reliable coverage for demanding homeowner routines.
This combo kit suits property owners seeking a unified 60V maintenance setup that handles both perimeter trimming and thorough hardscape cleanup with generous battery capacity. It surrenders top-end cutting speed to the 16-inch 60V model, which offers a broader swath and the rapid Spin-to-Load mechanism for dense field work.
06
Greenworks 40V 15 in Cordless String
Best for: Homeowners tackling dense weeds on 40V
Pros
- TORQDRIVE system with 30% more torque
- Wide 15-inch cutting path
- Variable speed with 2-speed switch
Cons
- Moderate 5500 RPM motor speed
- Listing does not state runtime
Bridging the gap between lightweight agility and heavy cutting capacity, the Greenworks 40V 15 in Cordless String trimmer (model ST40B213) delivers broad coverage on the accessible 40V battery platform. Its defining feature is the proprietary TORQDRIVE motor system, which provides 30 percent more rotational torque to muscle through dense patches of overgrown turf and tough weeds without stalling. The trimmer features a generous 15-inch cutting path running dual 0.085-inch line (with 0.080-inch highlighted in specifications) driven by a dual-line bump feed head.
Operational control is managed via a variable-speed trigger combined with a 2-speed selector switch, allowing the motor to spin up to 5500 RPM for heavy cutting or throttle down to conserve battery capacity while trimming around delicate perennials. The unit features an instant push-button start and weighs 12.3 pounds. It ships with a 2.0 Ah battery and dedicated charger, functioning within the broader 40V ecosystem that powers over 40 outdoor tools.
This model is optimal for homeowners who prefer the manageable weight and widespread tool compatibility of the 40V ecosystem but still require a wider 15-inch swath and heavier line to tackle thick summer growth. Users requiring commercial-grade line gauges or ultra-rapid charging, however, will be better served by the 60V or 80V series.
Matching a Model to Your Setup
- Suburban Walkway Edging and Low-Impact Landscaping: The Greenworks 40V 13 in Cordless String trimmer is the prime match thanks to its 7-position pivoting head, telescoping shaft, and integrated steel guide wheel for crisp sidewalk edging.
- Dense Overgrowth, Kudzu, and Extended Fence Lines: The Greenworks 60V 16 in Cordless String trimmer excels here with its 6000 RPM brushless motor, heavy 0.095-inch dual line, and 10-second Spin-to-Load reload design.
- High-Speed Perimeter Maintenance on Expansive Yards: The Greenworks 80V 16 in Cordless String provides commercial-level 80V performance, 6500 RPM motor speed, and rapid 30-minute battery turnaround.
- Complete Yard Detailing with Surface Cleanup: The Greenworks 60V 13 in String Trimmer combo kit provides an efficient two-in-one routine, supplying a durable 0.080-inch line trimmer paired with a 540 CFM turbo leaf blower and 4.0 Ah battery.
- Budget-Conscious Patio and Lawn Upkeep: The Greenworks 40V 12 in String Trimmer combo kit covers basic trimming and leaf clearing with its 8-pound trimmer, 67 dB quiet operation, and companion 390 CFM blower.
- Tough Weed Patches on a Standard 40V Platform: The Greenworks 40V 15 in Cordless String trimmer suits users who want the extra torque of the TORQDRIVE gearbox and a wide 15-inch path while remaining on the 40V battery platform.
Before You Buy
When selecting a string trimmer from manufacturer listings, shoppers should carefully review what is excluded from individual product descriptions. Several listings provide comprehensive shipping weights for the entire packaged box rather than the isolated bare tool weight. For instance, the 60V 13-inch combo lists a 22-pound total package weight and the 40V 12-inch kit lists 16.5 pounds, leaving out the exact operational weights of the bare tools. Reviewing whether a tool includes an auxiliary shoulder strap or wall-mounting hardware is also essential, as these items are rarely itemized on standard retail spec sheets.
Additionally, runtime specifications vary considerably across the product range based on vegetation density and motor speed settings. While the 60V 16-inch model provides an estimated 65-minute runtime and the 80V model states an average 30-minute operating life, the listings for the 40V 15-inch and 60V 13-inch combo do not specify exact operational minutes per charge. Homeowners with large properties should consider purchasing an additional battery pack or confirming charger cycle times before committing to a specific voltage line.
FAQ
Can 40V, 60V, and 80V Greenworks batteries be used interchangeably?
No, Greenworks batteries are strictly keyed to their specific voltage platform. A 40V battery will only power Greenworks 40V tools, a 60V battery only functions with the 60V lineup, and an 80V battery works exclusively with 80V equipment. You cannot insert an 80V battery into a 40V or 60V string trimmer.
What is the difference between auto-feed and bump feed line heads?
An auto-feed system advances fresh trimmer line automatically through centrifugal force and line tension changes whenever the tool starts or stops, eliminating physical intervention. In contrast, a bump feed head requires the operator to tap the rotating trimmer head gently against the ground to release more line while working.
How does the Spin-to-Load mechanism work on the 60V 16-inch trimmer?
The Spin-to-Load design allows the user to thread a measured segment of 0.095-inch trimmer line directly through the eyelets of the head housing without taking the assembly apart. Once fed through to the midpoint, twisting the outer cap winds the line onto the internal spool in roughly 10 seconds.
Which Greenworks string trimmer model is best for sidewalk edging?
The Greenworks 40V 13 in Cordless String trimmer is the most capable dedicated edging option in the lineup. It features a 2-in-1 conversion system that rotates 90 degrees into an edger, complete with a built-in steel guide wheel and a 7-position pivoting head to hold precise cutting angles along concrete borders.
What does the TORQDRIVE system do on the 40V 15-inch trimmer?
The TORQDRIVE system utilizes a specialized internal gear reduction mechanism that increases motor output torque by 30 percent. This extra rotational force prevents the cutting head from bogging down or stalling when slicing through thick weeds, crabgrass, and dense patches of overgrown turf.



