40V 16" Brushless String Trimmer w/ 4.0 Ah USB Battery (Attachment Capable)

In stock
Model
2120602AZ
40V CORDLESS 16 IN. BRUSHLESS (ATTACHMENT CAPABLE) STRING TRIMMER W/ 4.0 AH USB BATTERY is rated 4.1 out of 5 by 25.
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  • 3 Year Limited Tool & Battery Warranty
$199.99
In stock
 
Product intro
Cordless outdoor power tools are ideal for homeowners like you who are simplifying and focusing on what’s essential to getting the most out of life. The Greenworks 40V family of tools are built with medium weight construction and high-efficiency motors. The Greenworks 40V lithium-ion platform powers over 40 outdoor products, including lawn mowers, blowers, string trimmers, chainsaws, hedge trimmers, and much more! The 40V lithium-ion battery provides the power you need, and delivers fade-free power with no memory loss after charging. The Greenworks 40V platform comes with a 3 year tool / battery* warranty to protect your investment. Of high-quality manufacturing, these products are easy to start and lighter weight than the gas products you’re used to, making your day of yard work a whole lot easier. Perfect for yards up to ⅓ acre, Greenworks 40V tools are lightweight, start instantly, and require virtually no maintenance – no gas, no oil, no mess – but still deliver gas-like power.
Key features
Highly efficient 40V brushless motor provides more torque, quiet operation, and longer life
16" cut path with variable speed trigger to provide on-demand power to get through the toughest weeds with ease
Top mounted motor design combined with a steel straight shaft allows for superior balance and ergonomics while trimming your lawn
Attachment capable design that can accept attachments from multiple brands such as Ryobi, TrimmerPlus, Yardworks, and more
.080" dual line bump-feed head provides quick on-demand line advancement to rip through the toughest weeds
USB port in battery charges all portable electronic devices, including phones and tablets
Compatible with Greenworks 40V Li-Ion system for higher efficiency and longer run time with an assortment of tools to complete your yard work
Includes 4.0 Ah battery & charger
3 Year Limited Tool & Battery Warranty
Power:
Cordless
Voltage:
40V
Ideal For:
Up to ⅓ Acre
Brushless Motor:
Yes
Cutting Path:
16 Inches
Line Diameter:
.080" spiral twisted
Line Type:
Dual
Line Advance System:
Bump
Trigger Speed:
Variable
Attachment Capable:
Yes
Motor Mount:
Top
Tool Warranty:
3 Years
Battery Warranty:
3 Years
Battery Capacity:
4.0 Ah
Battery Chemistry:
Li-Ion
  • (1) 40V String Trimmer
  • (1) 4.0 Ah Battery
  • (1) Battery Charger
  • (1) Owner's Manual

String Trimmer FAQS

Why doesn’t my string trimmer turn on?

Battery operated string trimmer: Check that the battery has enough charge. Make sure to use a fully charged battery when starting your chores. Also, ensure the battery pack is installed and secured in the unit. If the battery is loose or can easily be removed it is not fully secured. A fully secured battery should have some resistance when pulled. Corded string trimmers: Use the guide inside the owner’s manual to ensure you have the correct extension cord required for operation. Check that the extension cords are in good working condition and make sure they are fully connected on both ends. If it still won't turn on, follow the start guide instructions that are located inside the owner’s manual.


How do I advance line?

Auto-feed string trimmers: To advance line, simply squeeze and release the trigger and repeat. Each time you start and stop the unit approximately ¼ inch of trimmer line will release. The more often you do this, the more line will advance. Bump and Feed string trimmers: While the unit is spinning, gently tap the bottom of the unit (knob) on the ground and the string trimmer will release approximately ¼ inch of line each time you tap it. The more often you do this, the more line will be released.


How do I clean my string trimmer?

To reduce yard debris build up on your string trimmer, do the following: • Wipe the machine after each use with a damp cloth dipped in water or neutral detergent. • Do not use aggressive detergents or solvents to clean the plastic parts or handles. • Keep the trimmer head free of grass, leaves, or excessive grease. • Keep the air vents clean and free of debris to avoid overheating and damage to the motor or battery. • Do not spray water onto the motor and electrical components.


Why does my unit stop when cutting grass?

Check the following if your unit suddenly stops cutting during use: • The guard is not on the unit. Ensure the guard is attached for each use. • The line is too heavy. Make sure you’re using the correct cutting line for your unit. Refer to the specification for the correct diameter of line that should be used with your string trimmer unit. • The motor is overloaded. Make sure that the cutting path (length of line outside of the trimmer head) is no more than the maximum cutting width of your unit. • The battery may be too warm. Allow it to cool and try again. Remove the battery from the unit and take it indoors to a cool/dry shaded location. Leave for 10 minutes, then try again once the the battery cools. • The battery pack may require charging or may not be properly installed.


Why isn’t my string trimmer cutting well?

Check that the guard is cleared of debris. Built up debris on the underside of the guard may prevent the line from cutting at its full potential. Ensure the cutting blade located on the underside of the guard is exposed, clean, and clear of debris. If the blade is dull, sharpen or replace the cutting blade. This will allow your trimmer line to work more effectively.


Rated 5 out of 5 by from Electric vs Gas powered My recent purchase of the brushless trimmer attachment was a very good decision. I have a gas-powered trimmer and it seems like I snapped more line with it. This one is not as powerful but it definitely sees me time on having a change line. I could do my whole yard and which is 9,000 ft² and I still have a lot of battery left. When I switch to a blower attachment the battery life is definitely shortened. Approximately 20 minutes before my five amp battery goes dead. Overall unit works very well. No more gas or oil to mix. I suggestion is investing in an extra battery.
Date published: 2022-08-13
Rated 5 out of 5 by from Great product This product exceeded all my expectations. The ease of use and quality of materials make this a value.
Date published: 2021-04-24
Rated 5 out of 5 by from Battery 40V trimmer Light, quiet and powerful enough to do a large yard. Battery last a long time. The .080 string is a good size and doesn’t break off easily. The trigger gives you a wide range of control, adjusting to any speed you want. Also has 2 speeds. Very impressed
Date published: 2021-03-21
Rated 5 out of 5 by from A believer now I was initially skeptical after using a gas trimmer for decades, but this 40 volt trimmer has the capability to do the exact same job. And seems the battery last for my entire acre plus yard as well.
Date published: 2021-03-11
Rated 5 out of 5 by from 2 for 2 !!! 2nd Greenworks tool! Love your products; works like a charm and I now have 2 40v batteries to swap between my chainsaw and trimmer! (keep up the good work)
Date published: 2021-03-03
Rated 5 out of 5 by from Great Tool This tool is great! The attachment capability is unexpected in a battery tool.
Date published: 2021-01-22
Rated 5 out of 5 by from 40V tools I have bought several Green Works tool's. Chain saw pole saw blower/vac and now the 16'' string trimmer because my gas trimmer is getting harder to start. All work great I was first impressed with the chain saw. Having always had a gas chain saw for cutting fire wood when I lived in the northeast. Now in FL the saws that I have are great for the trimming that I do now
Date published: 2020-12-20
Rated 5 out of 5 by from Awesome tool Works great and being able to use both the string cutter as well as the attachment that makes it work as a wheeled sidewalk trimmer is awesome with this tool I was able to sell off my gas string trimmer and my tried and faithfull tru cut gas edger
Date published: 2020-12-15
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Rated 5 out of 5 by from Electric vs Gas powered My recent purchase of the brushless trimmer attachment was a very good decision. I have a gas-powered trimmer and it seems like I snapped more line with it. This one is not as powerful but it definitely sees me time on having a change line. I could do my whole yard and which is 9,000 ft² and I still have a lot of battery left. When I switch to a blower attachment the battery life is definitely shortened. Approximately 20 minutes before my five amp battery goes dead. Overall unit works very well. No more gas or oil to mix. I suggestion is investing in an extra battery.
Date published: 2022-08-13
Rated 5 out of 5 by from Great product This product exceeded all my expectations. The ease of use and quality of materials make this a value.
Date published: 2021-04-24
Rated 5 out of 5 by from Battery 40V trimmer Light, quiet and powerful enough to do a large yard. Battery last a long time. The .080 string is a good size and doesn’t break off easily. The trigger gives you a wide range of control, adjusting to any speed you want. Also has 2 speeds. Very impressed
Date published: 2021-03-21
Rated 5 out of 5 by from A believer now I was initially skeptical after using a gas trimmer for decades, but this 40 volt trimmer has the capability to do the exact same job. And seems the battery last for my entire acre plus yard as well.
Date published: 2021-03-11
Rated 5 out of 5 by from 2 for 2 !!! 2nd Greenworks tool! Love your products; works like a charm and I now have 2 40v batteries to swap between my chainsaw and trimmer! (keep up the good work)
Date published: 2021-03-03
Rated 5 out of 5 by from Great Tool This tool is great! The attachment capability is unexpected in a battery tool.
Date published: 2021-01-22
Rated 5 out of 5 by from 40V tools I have bought several Green Works tool's. Chain saw pole saw blower/vac and now the 16'' string trimmer because my gas trimmer is getting harder to start. All work great I was first impressed with the chain saw. Having always had a gas chain saw for cutting fire wood when I lived in the northeast. Now in FL the saws that I have are great for the trimming that I do now
Date published: 2020-12-20
Rated 5 out of 5 by from Awesome tool Works great and being able to use both the string cutter as well as the attachment that makes it work as a wheeled sidewalk trimmer is awesome with this tool I was able to sell off my gas string trimmer and my tried and faithfull tru cut gas edger
Date published: 2020-12-15
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Just making sure; will this trimmer head accept blades?

Asked by: Byron Hammer
Hello Byron Hammer, No. We do not design our trimmer heads to accept blades. However, this is an attachment-capable string trimmer so you could purchase a universal brush cutter string trimmer attachment from brands such as Poulan Pro, Ryobi, or Trimmer Plus.
Answered by: Greenworks Support
Date published: 2022-09-14

I have a 40V 2ah battery that came with my leaf blower. Can I use that battery interchangeably with this trimmer?

Asked by: Pearl2
Hello Pearl2, This stirng trimmer is compatible with all Greenworks 40V GMAX, Max and Elite battery models sold in the USA.
Answered by: Greenworks Support
Date published: 2022-08-02

what is the thickest trimmer line that can be used in this model 40v 16" brushless trimmer?

Asked by: Frank L
Hello Frank L, This unit can be used with trimmer line up to .080" in diameter.
Answered by: Greenworks Support
Date published: 2022-09-14

Worked for about a week. Now it will only run for 5 seconds, stops, I turn it back on. Stops again again. Then shows battery in the red even though battery fully charged. Housing gets very hot.

Asked by: BobNC
Hello BobNC, We're sorry to hear about your experience when using this string trimmer! It sounds like you will need to contact us directly as some further information would be required to better assist. We kindly ask that you give us a call at 1-888-909-6757 (1-888-90WORKS). Please ensure that you have access to the unit, battery, and charger upon calling so that we can complete troubleshooting with you and gather the necessary unit information.
Answered by: Greenworks Support
Date published: 2022-06-20

Is there a trimmer head that isn’t a bump feed?

Asked by: Ben Wr
Hello Ben Wr, Yes, we offer auto-feed models as well. See links below. https://www.greenworkstools.com/40v-cordless-string-trimmer-21302 https://www.greenworkstools.com/40v-cordless-string-trimmer-tool-only-21332 https://www.greenworkstools.com/40v-12-string-trimmer-and-390-cfm-leaf-blower-combo
Answered by: Greenworks Support
Date published: 2022-06-06

I have 40v g=max will battery work on 40v 16" Brushless String Trimmer w/ 4.0 Ah USB Battery

Asked by: Cecil
Hello Cecil, Yes, this product can be used with GMAX batteries!
Answered by: Greenworks Support
Date published: 2022-06-05

So when this trimmer is back in stock will I still be able to get a 10% discount?

Asked by: Tretzky
Hello Tretzky, If you have a 10% promo code be sure to check whether it has an expiry date. If there is no expiry date, it should still be valid at a later time.
Answered by: Greenworks Support
Date published: 2021-06-07

When will this be in stock?!!!!!!

Asked by: Tretzky
Hello Tretzky, A shipment is expected this July. Be sure to enter your email in the appropriate field on the product page to ensure that you are notified once it has become available to purchase.
Answered by: Greenworks Support
Date published: 2021-06-05
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40V 16" Brushless String Trimmer w/ 4.0 Ah USB Battery (Attachment Capable)
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