40V 16" Brushless String Trimmer (Attachment Capable) (Tool Only)

In stock
Model
2120502AZ
40V CORDLESS 16 IN. BRUSHLESS (ATTACHMENT CAPABLE) STRING TRIMMER (TOOL ONLY) is rated 4.6 out of 5 by 9.
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  • 3 Year Limited Tool Warranty
$129.99
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
Compatible with Greenworks 40V Li-Ion system for higher efficiency and longer run time with an assortment of tools to complete your yard work
Tool only, battery & charger sold separately (or share your existing 40V battery with this cordless string trimmer)
3 Year Limited Tool & Battery Warranty
*Tool only, battery & charger sold separately
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 Capacity:
-
Battery Chemistry:
Li-Ion
  • (1) 40V 16" Cordless String Trimmer (Attachment Capable)
  • (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 Just as quality as my echo gas trimmer. I don't regret buying this electric trimmer at all. Went ahead and got the branch trimmer attachment too when it went on sale too. My gas trimmers, saws and blowers are just backups at this point.
Date published: 2022-09-06
Rated 5 out of 5 by from Very Happy This is what I need!!!, I have the 40V 13" CORDLESS STRING TRIMMER & EDGER W/ 2.0 AH BATTERY, and always is a pain with the line that doesn't auto fill, anyways the 16" is all I need and is (Attachment Capable) !!!!.
Date published: 2022-08-18
Rated 5 out of 5 by from Good tool! Works every time and does the job I want at the time.
Date published: 2020-12-05
Rated 5 out of 5 by from Cordless String Trimmer Runs longer than expected on the batteries - I got a little over an hour of use before recharge. I attached a Ryobi brush cutting tool and it cut through some thick brush with a fair amount of ease. Very pleased with the product.
Date published: 2020-11-05
Rated 5 out of 5 by from Easy and Capable Just has capable as gas, buy no hassle having to fill gas and start.
Date published: 2020-11-04
Rated 5 out of 5 by from Powerful and Lightweight; a Pleasure to Use I bought this to replace a previous Greenworks trimmer that had given sterling service for about six years, but it was time to purchase something a bit more powerful having moved to a house with a much bigger lot. After using this new trimmer several times, I have to say that I am very happy with my purchase. The trimmer is very controllable, has a powerful motor and is lightweight and comfortable to use for extended periods. It seems to be very efficient in use of the battery and gives a good amount of trimming on a single charge. The bump feed works perfectly and the line supplied with the trimmer seems very durable, even coping with agorita, pencil cactus and the like that we have here in TX.
Date published: 2020-11-01
Rated 4 out of 5 by from plenty of power very powerful does a great job but a bit on the heavy side
Date published: 2021-09-23
Rated 4 out of 5 by from Good tool I like it, It is the same length as my commercial gas trimmers, far more quiet and trims a couple acres before needing charge or a fresh battery
Date published: 2021-09-21
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Rated 5 out of 5 by from Just as quality as my echo gas trimmer. I don't regret buying this electric trimmer at all. Went ahead and got the branch trimmer attachment too when it went on sale too. My gas trimmers, saws and blowers are just backups at this point.
Date published: 2022-09-06
Rated 5 out of 5 by from Very Happy This is what I need!!!, I have the 40V 13" CORDLESS STRING TRIMMER & EDGER W/ 2.0 AH BATTERY, and always is a pain with the line that doesn't auto fill, anyways the 16" is all I need and is (Attachment Capable) !!!!.
Date published: 2022-08-18
Rated 5 out of 5 by from Good tool! Works every time and does the job I want at the time.
Date published: 2020-12-05
Rated 5 out of 5 by from Cordless String Trimmer Runs longer than expected on the batteries - I got a little over an hour of use before recharge. I attached a Ryobi brush cutting tool and it cut through some thick brush with a fair amount of ease. Very pleased with the product.
Date published: 2020-11-05
Rated 5 out of 5 by from Easy and Capable Just has capable as gas, buy no hassle having to fill gas and start.
Date published: 2020-11-04
Rated 5 out of 5 by from Powerful and Lightweight; a Pleasure to Use I bought this to replace a previous Greenworks trimmer that had given sterling service for about six years, but it was time to purchase something a bit more powerful having moved to a house with a much bigger lot. After using this new trimmer several times, I have to say that I am very happy with my purchase. The trimmer is very controllable, has a powerful motor and is lightweight and comfortable to use for extended periods. It seems to be very efficient in use of the battery and gives a good amount of trimming on a single charge. The bump feed works perfectly and the line supplied with the trimmer seems very durable, even coping with agorita, pencil cactus and the like that we have here in TX.
Date published: 2020-11-01
Rated 4 out of 5 by from plenty of power very powerful does a great job but a bit on the heavy side
Date published: 2021-09-23
Rated 4 out of 5 by from Good tool I like it, It is the same length as my commercial gas trimmers, far more quiet and trims a couple acres before needing charge or a fresh battery
Date published: 2021-09-21
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Will the GMax 40v 146Wh model 29472 battery and charger be compatible with this trimmer?

Asked by: Sieger2015
Hello Sieger2015, Yes, your existing battery model 29472 would be compatible!
Answered by: Greenworks Support
Date published: 2022-09-08

Hi, can you confirm that the 40v battery, model BAF722, will work in this trimmer?

Asked by: SHPARK
Hello SHPARK, Yes, our 40V battery model BAF722 will be compatible.
Answered by: Greenworks Support
Date published: 2022-09-07

Is there a standard replacement spool for all Greenworks trimmers? I see that only one is available on line. I have a 40 volt 16inch brushless trimmer and want to make sure that I get the right replacement spool

Asked by: 5343knox
Hello 5343knox, There are several different spool and trimmer head types for our string trimmers. To be sure that you purchase the one that is right for your unit, please kindly repost this question while including the model number of your trimmer or contact us directly for assistance at 1-888-909-6757; you may also send an email to info@greenworkstools.com.
Answered by: Greenworks Support
Date published: 2022-07-17

What is different between this model and the model 2100202 ?

Asked by: Tjb127
Hello Tjb127, The ultimate difference is the trimmer head. Model 2120502AZ is newer and features our quick load trimmer head, while 2100202 does not. I will provide the links below that show how each one is rewound. 2100202: https://youtu.be/uAgKchFx-_Q 2120502AZ: https://www.youtube.com/watch?v=YgVkrrx9gLg
Answered by: Greenworks Support
Date published: 2022-09-21

about when will this trimmer be available again?

Asked by: Otto64
Hello Otto64, At this time, we are expecting this product to become available this summer, in the month of July. However, this could change depending on delays.
Answered by: Greenworks Support
Date published: 2021-05-04

Can this 16 inch trimmer be used with a 40v 2Ah battery?

Asked by: Margaret1945
Hello Margaret1945, Yes, as long as the battery is also from the GreenWorks G-Max 40v line.
Answered by: Greenworks Support
Date published: 2021-04-05

Can just the upper portion be purchased separately possibly as a replacement part? I already have a 40 volt string trimmer but my model won’t accept the wheeled attachment 

Asked by: Doofus too
Hello Doofus too, This item is not sold separately. If you could contact us at 1-888-909-6757 (1-888-90WORKS) we may be able to assist you further.
Answered by: Greenworks Customer Care
Date published: 2020-11-20

Hi! What product do I purchase for when it runs out of string? Thanks!

Asked by: BMoreGreen
Hello BMoreGreen, This unit comes with an easy to rewind trimmer head. You can simply purchase any trimmer line that is .080 inches in diameter to rewind the existing spool yourself. Here's a video guide from a similar unit that uses the same rewinding mechanism. Please keep in mind your trimmer head may look slightly different but the mechanism will be the same: https://www.youtube.com/watch?v=YgVkrrx9gLg
Answered by: Greenworks Support
Date published: 2022-07-17
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40V 16" Brushless String Trimmer (Attachment Capable) (Tool Only)
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