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Greenworks 80V 16-Inch Brushless Trimmer or Greenworks 40V 16-Inch String Trimmer? Which Greenworks Model to Buy

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When you compare the greenworks 80v 16 inch brushless trimmer vs 40v 16 inch string trimmer, you see two distinct tools for different yard sizes. Both models feature a 16-inch cutting path and brushless motors for efficiency. The main difference lies in voltage and battery capacity. The 80V option offers higher power for tougher weeds, while the 40V model includes a larger battery and attachment compatibility. You should choose based on your lawn's demands and existing tool ecosystem.

Key differences

AspectGreenworks 80V 16-Inch Brushless TrimmerGreenworks 40V 16-Inch String Trimmer
Voltage80V40V
Battery Capacity2.0 Ah4.0 Ah
Motor TypeBrushlessBrushless
Cutting Swath16 in16 in
Weight16 pounds15.2 pounds
Attachment Capabilitynot listedCompatible with edger, hedge, polesaw, cultivator, and blower

Which one should you choose?

Choose Greenworks 80V 16-Inch Brushless Trimmer if

  • You need maximum cutting power for thick, tough weeds and larger lawns.
  • You prefer a faster 30-minute charge time for the included 2.0 Ah battery.
  • You want variable speed control for precise trimming around delicate landscaping.

Choose Greenworks 40V 16-Inch String Trimmer if

  • You want longer run-time with the included 4.0 Ah battery.
  • You plan to use additional tools like an edger, blower, or polesaw.
  • You prefer a slightly lighter unit at 15.2 pounds for reduced fatigue.

Verdict: Choose the 80V model if you prioritize raw cutting power and faster charging for demanding tasks. Select the 40V model if you need extended runtime and the flexibility to add other garden attachments to your collection.

Voltage and Battery Capacity Compared

Voltage output

Edge: Greenworks 80V 16-Inch Brushless Trimmer

The Greenworks 80V 16-Inch Brushless Trimmer operates at 80 volts. This higher voltage system is designed to deliver strong cutting power. It helps the tool power through tough grass and weeds. The Greenworks 40V 16-Inch String Trimmer runs on 40 volts. While sufficient for general trimming, the 80V model offers more torque. This makes the 80V version better for demanding yard maintenance. You will notice a difference in power when facing dense vegetation. The higher voltage translates to consistent performance under load.

Battery capacity

Edge: Greenworks 40V 16-Inch String Trimmer

Battery capacity affects how long you can trim before recharging. The Greenworks 80V 16-Inch Brushless Trimmer comes with a 2.0 Ah battery. This provides a 30-minute rapid charge time. The Greenworks 40V 16-Inch String Trimmer includes a 4.0 Ah battery. This larger capacity typically offers longer run-time per charge. If you have a larger lawn, the 4.0 Ah option may reduce interruption frequency. However, the 80V model charges faster. You must weigh runtime against recharge speed based on your yard size.

Cutting width

Edge: Tie

Both trimmers share the same cutting path width. The Greenworks 80V 16-Inch Brushless Trimmer features a 16-inch cutting width. The Greenworks 40V 16-Inch String Trimmer also has a 16-inch cutting swath. This means they cover the same ground per pass. The 16-inch width is efficient for trimming around sidewalks, driveways, and flower beds. You will not gain or lose efficiency in coverage by choosing one over the other. This spec is a tie for both models.

Line feed system

Edge: Tie

How you advance the trimmer line impacts your workflow. The Greenworks 80V 16-Inch Brushless Trimmer uses a bump feed head. This allows quick and easy line advancement while trimming. You do not need to stop to reload. The Greenworks 40V 16-Inch String Trimmer also utilizes a bump feed system. Both models allow you to keep working without interruption. This feature keeps you productive during extended use. Neither model offers auto-feed or twist-to-feed as an alternative in this comparison.

Attachment compatibility

Edge: Greenworks 40V 16-Inch String Trimmer

Versatility matters if you want multiple yard tools. The Greenworks 40V 16-Inch String Trimmer is attachment capable. It works with the PAC458 Edger, PAC459 Hedge, PAC460 Polesaw, PAC461 Cultivator, and PAC462 Blower. This allows you to convert the tool for various tasks. The Greenworks 80V 16-Inch Brushless Trimmer data does not list attachment capabilities. It is designed primarily as a standalone string trimmer. If you plan to use one handle for multiple tools, the 40V model offers more options.

Weight and balance

Edge: Greenworks 40V 16-Inch String Trimmer

Weight affects user fatigue during long trimming sessions. The Greenworks 80V 16-Inch Brushless Trimmer weighs 16 pounds. The Greenworks 40V 16-Inch String Trimmer weighs 15.2 pounds. The 40V model is slightly lighter. It is also described as 25% lighter than comparable gas-powered models. The 80V model is still considered lightweight and ergonomic. The difference is less than one pound. You may not notice a significant difference in comfort, but the 40V model has a slight edge in weight.

Which Greenworks Trimmer Fits Your Yard

Users needing high power for tough weeds

Our pick: Greenworks 80V 16-Inch Brushless Trimmer

The 80V system delivers strong cutting power for demanding yard maintenance. Its brushless motor provides more torque and quieter operation. Variable speed control helps you maneuver around plants. This model suits larger lawns where tough grass requires extra voltage to cut cleanly and efficiently.

Buyers wanting a lighter tool with longer runtime

Our pick: Greenworks 40V 16-Inch String Trimmer

This 40V model weighs 15.2 pounds, making it lighter than the 80V version. It includes a larger 4.0 Ah battery for extended run-times. The brushless motor ensures efficiency. You get variable speed modes and bump feed advancement. This choice reduces user fatigue during longer trimming sessions.

Those who want to add attachments later

Our pick: Greenworks 40V 16-Inch String Trimmer

This trimmer is attachment capable. You can pair it with compatible edgers, hedge trimmers, polesaws, cultivators, and blowers. This versatility expands your toolset without buying new motors. The 16-inch cutting path remains consistent across attachments. It is ideal if you plan to use multiple garden tools.

The products compared

Greenworks 80V 16-Inch Brushless Trimmer

Best for: tough weeds and rapid charging

Voltage
80V
Cutting Swath
16 in
Power Source
battery
Motor Type
brushless
Line Feed System
bump feed
Battery Capacity
2.0 Ah

View on Amazon: Greenworks 80V 16-Inch Brushless Trimmer Affiliate link

This Greenworks trimmer uses an 80V brushless motor and a 16-inch cutting path. It includes a 2.0Ah battery that charges in 30 minutes. The bump feed head and variable speed trigger help you manage weeds and grass efficiently. It weighs 16 pounds and starts instantly. This model suits users who need strong power for tougher vegetation and faster charging times.

Pros

  • 80V brushless motor delivers high torque and consistent power
  • 16-inch cutting swath with dual .080-inch line
  • Rapid 30-minute charge time for the 2.0Ah battery
  • Variable speed trigger allows precise control around plants

Cons

  • 2.0Ah battery capacity is lower than the 4.0Ah option on this list
  • 16-pound weight may cause fatigue during extended use
  • Bump feed system requires manual tapping to advance line

Good fit if

  • You need higher voltage power for thick weeds
  • You want a brushless motor for longer tool life
  • You prefer rapid charging between jobs

Skip if

  • You require a larger 4.0Ah battery for longer runtime
  • You want a lighter tool under 15 pounds
  • You prefer a self-advancing line head over bump feed

Verdict: Greenworks 80V 16-Inch Brushless Trimmer fits users who prioritize voltage and charging speed over battery capacity. It is a solid choice for tackling dense weeds with a brushless motor.

Greenworks 40V 16-Inch String Trimmer

Best for: lightweight trimming and attachment versatility

Voltage
40V
Cutting Swath
16 in
Power Source
battery
Motor Type
brushless
Battery Capacity
4.0 Ah
Cutting Width
16-Inch

View on Amazon: Greenworks 40V 16-Inch String Trimmer Affiliate link

This Greenworks 40V string trimmer features a 16-inch cutting swath and a 4.0 Ah battery. It uses a brushless motor for longer runtime and extended life. The tool includes two-speed modes and a variable trigger for control. It is 25% lighter than comparable gas models. You will appreciate the attachment capability for other garden tools. It suits users who want a lightweight, versatile cordless option.

Pros

  • Brushless motor for extended runtime and life
  • 4.0 Ah battery capacity included
  • 25% lighter than comparable gas models
  • Compatible with multiple Greenworks attachments
  • Two-speed modes with variable trigger

Cons

  • Lower 40V system compared to 80V alternatives
  • 16-inch cutting width is narrower than some competitors
  • Heavier at 15.2 pounds than some lightweight rivals

Good fit if

  • You want a lightweight trimmer that reduces fatigue
  • You plan to use Greenworks attachment tools
  • You prefer a brushless motor for durability

Skip if

  • You need maximum power from an 80V system
  • You require a wider cutting swath for large areas
  • You prefer a lighter weight under 15 pounds

Verdict: Greenworks 40V 16-Inch Brushless Trimmer fits users who value versatility and weight savings over raw power. It is ideal for those already invested in the Greenworks ecosystem.

Specifications side by side

Spec Greenworks 80V 16-Inch Brushless Trimmer Greenworks 40V 16-Inch String Trimmer
Voltage 80V 40V
Cutting Swath 16 in 16 in
Power Source battery battery
Motor Type brushless brushless
Line Feed System bump feed not stated
Battery Capacity 2.0 Ah 4.0 Ah
Cutting Width 16-Inch 16-Inch
Application Yard, Garden, Lawn Yard, Lawn
Shaft Type not stated Attachment Capable
Dimensions 35.2 × 10 × 7 inches 65.4 × 11.8 × 5 inches
Weight 16 pounds 15.2 pounds
Size 16" Brushless - Gen 1 (2.0Ah) 16" Trimmer (4Ah) Gen 2
Color Silver, Black, Green Green
Model ST80L210 ST40L414

Frequently asked questions

Does the 80V model have a brushless motor?

Yes, the Greenworks 80V 16-Inch Brushless Trimmer features a brushless motor. This design improves efficiency and extends the tool's lifespan. It also provides more torque than brushed alternatives. You get quieter operation and consistent power delivery during tough trimming tasks.

Which trimmer weighs less?

The Greenworks 40V 16-Inch String Trimmer is lighter at 15.2 pounds. The 80V model weighs 16 pounds. The weight difference is small but noticeable during extended use. You may prefer the lighter 40V unit for overhead trimming or prolonged sessions.

Do both models cut the same width?

Both trimmers offer a 16-inch cutting width. This specification applies to both the 80V and 40V models. You get the same coverage per pass with either tool. The cutting path remains consistent regardless of the voltage system you choose.

Is the 40V model part of a larger system?

The 40V model fits users invested in the Greenworks ecosystem. It shares battery compatibility with other 40V tools. This versatility allows you to use the same battery across multiple devices. You save money by not needing separate chargers for different voltage systems.

Which model charges faster?

The 80V model is best for rapid charging needs. It is designed for users who prioritize quick turnaround times. You can get back to work faster with this system. The higher voltage architecture supports faster energy transfer to the battery pack.

What is the best use for the 80V trimmer?

The 80V trimmer is ideal for tough weeds and dense vegetation. Its higher voltage delivers strong cutting power for demanding yard maintenance. You will appreciate the robust performance when clearing thick brush. It is a solid choice for heavy-duty trimming jobs.

See also