A beautiful and neatly manicured yard will make your neighbors envious and elicit unsurmountable praise for your efforts.
However, most novices seldom understand that gardening goes beyond planting and harvesting. It involves careful trimming of thick foliage, removing dead branches, and keeping weeds at bay, among other things. Various gardening tasks require different tools, and in my quest for a powerful trimmer to tackle my wild bushes, I came across this Greenworks 40V model.
Hi there! I'm Stacy. And, today I will review the Greenworks 40V String Trimmer. Efficient and reliable, it has been my loyal companion for years, and I cannot wait to tell you all about it. So, without further ado, let's begin!
What Is Greenworks ST40B410 String Trimmer?
The Greenworks ST40B410 Trimmer is a robust battery-powered model that allows me to remove weed, chop branches, and trim edges from the yard. And I get to do all this without straining my hands or spending too much time.
It works on a 40V Li-Ion battery that delivers a power-packed performance, and you can easily avoid the hassle of refilling the tank or dragging around an electrical cord. Besides, it has a brushless motor, making it far more efficient and fatigue-resistant than other variants from the brand.
How Does Greenworks ST40B410 String Trimmer Work?
The Greenworks string trimmer operates on a single 40V battery that takes around two hours to charge fully and runs for 60-70 minutes. Unlike gas-powered models, it produces no emissions and doesn't require a fuel refill. All you have to do is keep an eye on the in-built battery indicator and charge the device as and when necessary.
Besides sustainability, I was pretty impressed with the auto-feed line advancement system that dispenses a new line every time I lightly tap the head on the ground. Thus, even though edging and trimming can get exhausting, this product makes it a cakewalk.
Greenworks ST40B410 Trimmer Features
There are a couple of stand-out features that make the Greenworks trimmer a popular pick among gardeners. I've discussed some of them below.
1. Versatile
What is the point of yard care tools if they don't make your job easier? This Greenworks trimmer is designed to render maximum functionality and can trim and edge your bushes effortlessly. In addition, it has a 12-inch cutting swath that can tackle thicker grass and can eliminate weed with ease.
2. Easy Line Reload
To be honest with you, I'm not a fan of string trimmers that have a bump head system. In the past, I have found myself tapping on the ground multiple times and wrestling with the product to bring out a new line.
However, this trimmer is a welcome change! It features a dual 0.065" line and has an auto-feed system. Thus, the device automatically releases a new line once the old one runs out, and you don’t have to bump the trimmer head on the grass.
3. Power-Packed Performance
Apart from the powerful 40-volt Li-Ion battery, the Greenworks trimmer features a variable speed adjustment system that gives you complete control over the cutting speed and improves run-time.
If your grass needs minor trims, you can work with the lower speed option to increase battery life and deliver clean cuts. That said, I highly recommend choosing the high-speed option for weed whacking since it can render maximum efficiency in a minimum amount of time.
4. Ergonomic Design
Another striking feature of this device is its ergonomic design. Weighing merely 8.8 lbs, this unit is relatively lightweight in comparison to gas-powered models. Besides, it has a wrap-around handle for a comfortable grip.
Therefore, you can work with it for long hours without straining your wrists.
- 40V STRING TRIMMER – powers through the toughest grass and weeds.Speed : 7500 (±10%) RPM
- 12” CUTTING PATH - .065” line, auto feed head for quick and easy line advancement
- VARIABLE SPEED TRIGGER – allows you to control cutting speed on the go, so you can easily maneuver around plants and shrubs
FAQs
The Greenworks Trimmer can effectively cover a ⅓ acre yard, and while this is more than enough for residential purposes, I wouldn't recommend this particular model for commercial use. However, you can check out other models from the brand for heavy-duty use.
I have been working with gas-powered trimmer models for the longest time, so switching to this battery-powered variant brought much-needed relief to my ears.
If you are accustomed to using gas-powered trimmers, the noise produced by this device won't bother you at all. In fact, I could easily hold a conversation with my neighbor standing across the yard while trimming the bushes with this one.
The Greenworks Trimmer comes with an impressive 3-year warranty.
Pros
Cons
Alternatives
1. Worx WG163 String Trimmer
- 2 IN 1 TRIMMER & EDGER : Easily converts from a string trimmer to an edger lawn tool in just seconds.
- INSTANT LINE FEED: This grass trimmer has innovative push button command feed spool system for instant line feeding. Plus, free spools for life.
- HEAD TILTS 90°: So you can use string trimmer and edger on sloped terrain, and get to tough-to-reach places.
- Command Feed System for quick line feeding
- Trimmer's head tilts for efficient trimming
- Works as a trimmer and wheeled edger
2. Beyond By BLACK+DECKER
- Automatic Feed Spool (AFS) feeds edger/ trimmer line as needed - without bumping.
- 2 Speed Control: Choose between more power for tough jobs or longer run time for routine trimmings.
- More Power When You Need It: Patented POWERDRIVE transmission increases brush cutter torque to handle overgrowth.
- Auto feed spool system
- Adjustable height with variable speed control
- Wheeled edger for sidewalk and flower bed trimming
3. Powerworks STP302
- Powerful 40 Volts Gear Reduced Motor with 15-Inch Cutting Swath Easily Cuts Through Thick Grass and Weeds
- Dual .080-Inch Line / Bump Feed Head For Quick and Easy Line Advancement
- Adjustable Handle and Cushioned Overmold Grip For Superior Comfort and Control
- Adjustable handle with cushioned grip
- 15-inch cutting swath covers a large area
- Bump head system with dual-line of 0.080 inches
Conclusion
That’s all, folks!
I hope my Greenworks 40v trimmer review has been informative and detailed. This device was a gift from my son and has worked without any interruptions for the last four years. So, I am delighted with this purchase.
If you want to check out some alternatives, I recommend the Worx WG163 String Trimmer that comes with a command feed system. There is also Beyond by BLACK+DECKER that has an adjustable height, and the Powerworks STP302, which comes with a cushioned grip.
However, I prefer the Greenworks trimmer model due to its high-powered battery and lightweight construction.
That’s all I have for you today. Do reach out to me in case of any queries. Until next time, happy gardening!

