As an Amazon Associate we earn from qualifying purchases. Affiliate disclosure

Greenworks vs BLACK+DECKER: String Trimmers Compared by Specs

Latest update:

As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.

When you research the greenworks vs black decker string trimmer options, you find two solid 40V cordless tools. Both use lithium-ion batteries and feature automatic line feed for convenience. The main difference lies in their design and capabilities. Greenworks offers a combo kit with a blower, while BLACK+DECKER provides a 2-in-1 trimmer and edger. You should look at the specs to see which fits your yard tasks better.

Key differences

AspectGreenworks 40V 12-Inch Trimmer and Blower ComboBLACK+DECKER 40V 13-Inch String Trimmer and Edger
Cutting Width12 in13 in
Mowing FunctionString Trimmer2-in-1 Trimmer/Edger
Weight16.5 pounds7.8 pounds
Included AccessoriesTrimmer and Blower ComboTrimmer Only
Motor Speednot listed8500 RPM

Which one should you choose?

Choose Greenworks 40V 12-Inch Trimmer and Blower Combo if

  • You want a blower included for clearing debris along driveways and walkways.
  • You prefer a balanced design that feels lighter during extended use despite the kit weight.
  • You already have other 40V Greenworks tools and want to use the same battery ecosystem.

Choose BLACK+DECKER 40V 13-Inch String Trimmer and Edger if

  • You need to switch between trimming and edging without changing tools.
  • You prioritize a lightweight unit that is easy to maneuver around flower beds.
  • You want a dial to choose between maximum power or maximum runtime.

Verdict: The Greenworks combo is better if you need a blower to clear debris and want to expand your 40V tool collection. The BLACK+DECKER model suits you if you need a dedicated edger function and a lighter, more compact trimmer. Choose based on whether you need extra versatility or a single specialized tool.

Greenworks vs Black+Decker Spec Showdown

Cutting Width

Edge: BLACK+DECKER 40V 13-Inch String Trimmer and Edger

You get a 12-inch cutting swath with the Greenworks 40V 12-Inch Trimmer and Blower Combo. This model uses a .065-inch auto-feed line to handle weeds up to one inch thick. In comparison, the BLACK+DECKER 40V 13-Inch String Trimmer and Edger offers a slightly wider 13-inch cutting width. The broader path allows you to clear more grass and brush in a single pass. While the difference is small, the extra inch can reduce the number of passes needed for larger areas. Both systems rely on automatic line feed, so you do not need to bump the spool to extend the line. The BLACK+DECKER unit provides the marginally larger cutting area.

Weight and Balance

Edge: BLACK+DECKER 40V 13-Inch String Trimmer and Edger

The Greenworks 40V 12-Inch Trimmer and Blower Combo weighs 16.5 pounds. This weight includes both the trimmer and the blower unit in the combo package. The BLACK+DECKER 40V 13-Inch String Trimmer and Edger is significantly lighter at 7.8 pounds. This reduced weight makes the BLACK+DECKER tool much easier to hold and maneuver for extended periods. The Greenworks unit is described as balanced and featherweight for its class, but it is still more than double the weight of the BLACK+DECKER model. If you plan to trim for a long time or have limited strength, the lighter BLACK+DECKER option reduces fatigue. The Greenworks weight reflects its dual-function combo nature.

Power and RPM

Edge: BLACK+DECKER 40V 13-Inch String Trimmer and Edger

Both tools operate on a 40V battery system, providing comparable voltage levels. The BLACK+DECKER 40V 13-Inch String Trimmer and Edger features a PowerDrive transmission that delivers more power from the motor to the cutting string. It also operates at speeds up to 8500 RPM for efficient cutting. The Greenworks 40V 12-Inch Trimmer and Blower Combo highlights a commercial-grade head with a 3-year warranty, suggesting robust durability. However, specific RPM or transmission details are not listed for the Greenworks model. The BLACK+DECKER specifications explicitly mention high-speed performance and power transmission, giving you clear data on its cutting force. The Greenworks data focuses more on the ecosystem compatibility than raw motor metrics.

Battery and Charging

Edge: Greenworks 40V 12-Inch Trimmer and Blower Combo

Both the Greenworks 40V 12-Inch Trimmer and Blower Combo and the BLACK+DECKER 40V 13-Inch String Trimmer and Edger use 2.0Ah lithium-ion batteries. The Greenworks battery charges in 60 minutes, allowing for quick turnaround between tasks. The BLACK+DECKER model includes a fast charger that restores full battery power in 2 hours or less. The Greenworks system is part of a Universal 40V Power Hub, compatible with eight or more tools. This allows you to swap the same battery between mowers, blowers, and saws. The BLACK+DECKER data does not explicitly detail cross-tool compatibility in the same way, though it is a known ecosystem. For charging speed, the Greenworks unit offers a faster recharge time.

Versatility and Function

Edge: Greenworks 40V 12-Inch Trimmer and Blower Combo

The Greenworks 40V 12-Inch Trimmer and Blower Combo is a two-in-one system that includes a blower. It delivers 390 CFM and 110 MPH air speed, allowing you to clear leaves and debris from driveways and gutters. This adds significant value if you need both trimming and blowing capabilities. The BLACK+DECKER 40V 13-Inch String Trimmer and Edger converts from a trimmer to an edger in seconds. This 2-in-1 function helps you maintain clean lines along sidewalks and flower beds. The Greenworks combo offers a broader range of tasks by including air blowing, while the BLACK+DECKER focuses on precision edging. If you need to move debris, the Greenworks blower is a clear advantage.

Which string trimmer suits your needs

Users needing edging and trimming versatility

Our pick: BLACK+DECKER 40V 13-Inch String Trimmer and Edger

The BLACK+DECKER model converts from trimmer to edger in seconds. It features a 13-inch cutting swath and an adjustable telescoping pole. The PowerCommand dial lets you switch between maximum power or runtime. This 2-in-1 design handles diverse landscaping tasks without switching tools, making it ideal for precise edge work.

Those wanting a combo kit with blower

Our pick: Greenworks 40V 12-Inch Trimmer and Blower Combo

The Greenworks option includes a 390 CFM blower alongside the string trimmer. This combo system clears debris from driveways and walkways efficiently. You get a 12-inch cutting swath with auto-feed line. The 40V ecosystem allows you to swap the 2.0Ah battery between multiple tools, reducing the need for separate chargers.

Users prioritizing lightweight and compact design

Our pick: BLACK+DECKER 40V 13-Inch String Trimmer and Edger

The BLACK+DECKER trimmer weighs just 7.8 pounds. Its compact dimensions make it easy to maneuver around tight spaces. The adjustable height and soft-grip handle enhance comfort during extended use. At 46.5 inches long, it is shorter than the Greenworks alternative, offering better control for detailed yard work and flower bed maintenance.

The products compared

Greenworks 40V 12-Inch Trimmer and Blower Combo

Best for: Small yards needing trimmer and blower combo

Voltage
40V
Cutting Swath
12 in
Power Source
battery
Line Feed System
auto-feed
Battery Capacity
2.0 Ah
Cutting Width
12-Inch

View on Amazon: Greenworks 40V 12-Inch Trimmer and Blower Combo Affiliate link

This Greenworks combo includes a 40V string trimmer with a 12-inch cutting swath and a 390 CFM blower. It uses a 2.0Ah battery that charges in 60 minutes. The trimmer features an auto-feed line system. The total weight is 16.5 pounds. This setup helps you clear edges and debris efficiently. It suits users who want two tools in one package for small to medium yards.

Pros

  • 12-inch cutting swath for efficient edge trimming
  • 390 CFM blower speed for leaf clearance
  • Auto-feed line system reduces manual bumping
  • 60-minute battery charge time for quick turnaround
  • 16.5-pound total weight for manageable handling

Cons

  • 2.0Ah battery capacity limits runtime for larger jobs
  • 12-inch cutting width is narrower than 13-inch or 16-inch options
  • No variable speed control listed for the blower

Good fit if

  • You need a trimmer and blower in one system
  • You have a small yard under a quarter acre
  • You prefer auto-feed line replacement over manual bumping

Skip if

  • You require a wider 13-inch or 16-inch cutting swath
  • You need high-capacity batteries for all-day runtime
  • You want variable speed control for delicate edging

Verdict: Greenworks 40V 12-Inch Trimmer fits users who want a lightweight two-in-one tool for small spaces. It offers quick charging and easy line feeding. It is not ideal for large lawns requiring wider cuts or longer runtime.

BLACK+DECKER 40V 13-Inch String Trimmer and Edger

Best for: Users needing a versatile trimmer and edger combo

Voltage
40V
Cutting Swath
13 in
Power Source
battery
Line Feed System
automatic
Battery Capacity
2.0Ah
Cutting Width
13-Inch

View on Amazon: BLACK+DECKER 40V 13-Inch String Trimmer and Edger Affiliate link

This BLACK+DECKER tool is a 2-in-1 string trimmer and edger with a 13-inch cutting swath. It runs on a 40V MAX lithium-ion battery and weighs 7.8 pounds. The PowerCommand Dial lets you switch between max power and max runtime. An automatic feed spool adds line without bumping. It converts to an edger quickly. This unit suits users who want versatility and adjustable power settings for their lawn care tasks.

Pros

  • 13-inch cutting swath for efficient trimming
  • PowerCommand Dial adjusts between power and runtime
  • Automatic feed spool eliminates manual bumping
  • Converts from trimmer to edger in seconds

Cons

  • Smaller 2.0Ah battery capacity compared to 4.0Ah options
  • Heavier at 7.8 pounds than lighter bare tool versions
  • No variable speed trigger for precise control

Good fit if

  • You need a trimmer that converts to an edger
  • You want to adjust power output for different weeds
  • You prefer automatic line feed for convenience

Skip if

  • You require a larger 4.0Ah battery for extended runtime
  • You need a lightweight tool under 6 pounds
  • You prefer a variable speed trigger for control

Verdict: BLACK+DECKER 13 in Cordless Trimmer Edger fits users who value the ability to switch between trimming and edging with adjustable power settings, though it is heavier and has a smaller battery than some competitors.

Specifications side by side

Spec Greenworks 40V 12-Inch Trimmer and Blower Combo BLACK+DECKER 40V 13-Inch String Trimmer and Edger
Voltage 40V 40V
Cutting Swath 12 in 13 in
Power Source battery battery
Line Feed System auto-feed automatic
Battery Capacity 2.0 Ah 2.0Ah
Cutting Width 12-Inch 13-Inch
Mowing Function not stated 2-in-1
Application Lawn Lawn
Dimensions 64.5 × 7.5 × 5 inches 46.5 × 13.5 × 11 inches
Weight 16.5 pounds 7.8 pounds
Size 40V 12" + 390CFM (2.0Ah) 46.5"L x 13.5"W x 11"H
Color Green/Black Orange
Model STBA40B210 LST136

Frequently asked questions

Which cordless trimmer is lighter to carry?

The BLACK+DECKER 40V 13-Inch String Trimmer is significantly lighter. It weighs 7.8 pounds. The Greenworks 40V 12-Inch Trimmer and Blower Combo weighs 16.5 pounds. You will feel less fatigue with the BLACK+DECKER model during extended use. The weight difference is nearly nine pounds.

Does either tool function as a blower?

Only the Greenworks option includes a blower. The Greenworks 40V 12-Inch Trimmer and Blower Combo comes with a blower attachment. The BLACK+DECKER 40V 13-Inch String Trimmer does not include blower capabilities. You must choose the Greenworks kit if you need to clear debris.

Can I switch this trimmer into an edger mode?

Yes, the BLACK+DECKER model converts to an edger. The BLACK+DECKER 40V 13-Inch String Trimmer and Edger allows you to switch functions quickly. The Greenworks 40V 12-Inch Trimmer and Blower Combo is designed only for trimming and blowing. It does not offer edging functionality.

Which trimmer has a wider cutting path?

The BLACK+DECKER trimmer offers a wider cut. It has a 13-inch cutting width. The Greenworks trimmer provides a 12-inch cutting width. The one-inch difference may help you clear grass faster. Both tools are suitable for small to medium yards.

What is the total length of the Greenworks unit?

The Greenworks 40V 12-Inch Trimmer and Blower Combo measures 64.5 inches in length. The BLACK+DECKER 40V 13-Inch String Trimmer is shorter at 46.5 inches. The Greenworks unit is longer due to the included blower attachment. You should consider storage space for the longer tool.

Which tool is better for small yards?

The Greenworks combo kit is ideal for small yards. It fits users who want a lightweight two-in-one tool for small spaces. The BLACK+DECKER model is also suitable but lacks the blower. If you need to blow leaves after trimming, the Greenworks kit is the more practical choice for small areas.

See also