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Best 40V Cordless String Trimmer (2024 Update)

If you’re looking for a powerful and efficient tool to keep your lawn looking clean and tidy, a 40V cordless string trimmer might be just what you need. But with so many options available on the market, it can be tough to know where to start your search. Here are some factors to consider before making your purchase.

Firstly, you should think about the size of your yard and the type of weeds or grass you’ll be trimming. If you have a large property with tough, woody plants to tackle, you may need a more heavy-duty model with a longer cutting time and a larger cutting width. If your lawn is smaller or you just need to do some light trimming, a smaller and less powerful trimmer might work just fine for you.

Another factor to consider is the battery life and charging time of the trimmer. You don't want to stop in the middle of trimming due to a battery dying or constantly need to recharge it every 30 minutes. Look for a model with good battery life and a quick charging time to minimize any downtime and keep your trimming efficient.

Are you tired of the hassle of maintaining gas or electric string trimmers? Do you want a quiet and eco-friendly option to tackle your yard work? A 40V cordless string trimmer may be the solution for you. With its cordless and battery-powered operation, you can easily move around your yard without worrying about the cord getting tangled, and you won't have to deal with messy fuel and oil changes. So if you’re ready to take your lawn to the next level, start exploring the best 40V cordless string trimmers on the market today!

10 Best 40V Cordless String Trimmer

# Product Image Product Name Product Notes Check Price
1
Ideal for efficient trimming and edging of grass and weeds in residential outdoor spaces using a powerful cordless lithium-ion battery.
2
Ideal for maintaining small to medium-sized lawns, edging and trimming grass and weeds in hard-to-reach areas with ease.
3
Ideal for trimming and edging lawns with a cordless, powerful, and versatile tool.
4
This product is ideal for trimming and edging small to medium-sized yards with its powerful and cordless operation.
5
Ideal for trimming and edging small to medium-sized lawns with its attachment capability, cordless feature, and long-lasting battery.
6
Ideal for trimming small to medium-sized yards with its cordless and lightweight design.
7
Ideal for trimming and edging small to medium-sized lawns with a cordless, lightweight design and adjustable cutting width.
8
This product is ideal for garden maintenance, specifically for trimming and blowing away debris.
9
Ideal for trimming and edging small to medium sized lawns or yards with its cordless design, 2-speed control, and included batteries.
10
Ideal for trimming grass and weeds around small to medium-sized yards, powered by a 40-volt lithium-ion battery.
Ideal for efficient trimming and edging of grass and weeds in residential outdoor spaces using a powerful cordless lithium-ion battery.
Ideal for maintaining small to medium-sized lawns, edging and trimming grass and weeds in hard-to-reach areas with ease.
Ideal for trimming and edging lawns with a cordless, powerful, and versatile tool.
This product is ideal for trimming and edging small to medium-sized yards with its powerful and cordless operation.
Ideal for trimming and edging small to medium-sized lawns with its attachment capability, cordless feature, and long-lasting battery.
Ideal for trimming small to medium-sized yards with its cordless and lightweight design.
Ideal for trimming and edging small to medium-sized lawns with a cordless, lightweight design and adjustable cutting width.
This product is ideal for garden maintenance, specifically for trimming and blowing away debris.
Ideal for trimming and edging small to medium sized lawns or yards with its cordless design, 2-speed control, and included batteries.
Ideal for trimming grass and weeds around small to medium-sized yards, powered by a 40-volt lithium-ion battery.

1. Expandable Lithium String Trimmer – Ryobi 40v

The Ryobi 40v Cordless String Trimmer is the perfect addition to your collection of gardening tools. Please note that this product does not come with a battery or charger, and is intended to be used with your existing Ryobi 40v battery and charger.

This string trimmer is attachment-capable, which means it can accept RYOBI expand-it attachments and other universal gas attachments, saving you time, money and space. You can easily switch from one attachment to another, allowing for more versatility in your gardening tasks.

The trimmer line is made from premium 0.080 in. twisted dual line, and comes with a Reel-easy bump-feed string head for fast and easy reloading. This means you can spend more time trimming and less time reloading the string.

The variable speed trigger allows for cutting control, giving you the ability to adjust the speed based on the thickness of the weeds or grass you are trimming.

This cordless string trimmer also has an adjustable cutting width of 13 in. to 15 in., giving you the option to choose between longer run time or a wider cutting path, depending on your needs.

2. Ryobi 40-Volt Lithium-Ion Cordless Attachment Capable String Trimmer, 4.0 Ah Battery And Charger Inc

Looking for a reliable and versatile string trimmer to keep your lawn looking neat and tidy? Look no further than the Attachment Capable 40-Volt Lithium-Ion Cordless String Trimmer.

This string trimmer is attachment-capable, which means it can accept RYOBI expand-it attachments and other universal gas attachments. This feature saves you both time and money, as you won't need to buy multiple tools for different tasks. Plus, it saves space in your garage or storage shed.

The 40-volt lithium-ion high capacity battery and 90-minute charger are included with the trimmer, so you can get started right away. The battery provides long-lasting power, so you won't have to stop and recharge in the middle of a job.

The cutting width is adjustable, ranging from 13 inches to 15 inches. This allows you to choose between a longer run time or a wider cutting path, depending on your needs.

Reloading the trimmer's string is fast and easy thanks to the reel-easy bump-feed string head. Simply bump the head on the ground and the string advances automatically.

Finally, the variable speed trigger gives you precise control over the cutting speed. This feature allows you to cut through thick weeds and grass with ease, or slow down for more delicate trimming around flower beds and other landscaping features.

3. Wen 40413bt Lithium Edger 40v Max Li-Ion Cordless 14-Inch 2-In-1 String Trimmer (Tool Only), Black

Introducing the new alternative string trimmers that will make gardening a breeze. Say goodbye to the hassle of gasoline and extension cords and hello to a more convenient and efficient gardening experience.

The telescoping body of this trimmer extends from 51.5 inches to 68.5 inches, making it ideal for reaching those hard-to-get areas. The quick adjust handle also makes it easy to customize the length to your liking.

With the ability to easily rotate the head, you can alternate between edging and string trimming functions in no time. This feature makes it a versatile tool that can handle a variety of gardening tasks.

Please note that the battery and charger are not included with this product. However, it is compatible with the entire WEN 40-Volt MAX series, allowing you to use them with other WEN products.

You can set the cutting width to either 12 inches, 13 inches, or 14 inches depending on your needs. This allows you to alternate between maximum runtime and maximum cutting capacity, ensuring that you can get the job done efficiently.

4. Skil Pwr Core 40 14" Trimmer Kit

Introducing the Cordless String Trimmer Kit – an essential tool for any yard work enthusiast. This kit includes a 2.5Ah battery and an Auto PWR JUMP Charger, ensuring that you are always powered up and ready to go.

With its lightweight design, this trimmer is the lightest in its class when compared to 40v competitive brands. But don't let its weight fool you – the digital brushless motor provides efficient, high-performance power for a longer tool life without the hassle of gas.

One of the standout features of this trimmer is its longer run time and battery life. The industry-leading PWR CORE 40 lithium battery technology wraps each cell with cooling material to keep it powering on for 25% longer run time and 2X battery life.

Plus, loading the trimmer line is a breeze thanks to the Twist Load Head. Simply insert the line and twist to get started, saving you time and effort.

5. Greenworks Cordless String Trimmer With Attachments.

The versatile GreenWorks Attachment Capable Brushless Motor String Trimmer is a must-have for any homeowner or professional landscaper. With its ability to accept most gas attachments, this tool provides multiple uses to help keep your yard looking its best.

Equipped with a powerful brushless motor, this string trimmer delivers greater torque, quieter operation, and higher battery efficiency. You'll love how it starts up within seconds, providing gas-like performance without the hassle of mixing fuel or dealing with fumes. Plus, the battery is compatible with multiple GreenWorks tools, making it a smart investment for anyone with a larger collection of outdoor power equipment.

The package includes both the battery and charger, and the tool is compatible with battery models 29462 and 29472 as well as charger 29482. This means you'll have everything you need to get started right out of the box, without any additional purchases required.

This GreenWorks string trimmer is also compatible with the GreenWorks Replacement Bulk String, Model 2906302. This makes it easy to find the right replacement string when you're ready to tackle tough weeds and overgrowth.

6. Kobalt 40-Volt Max 15-In Straight Cordless Bare Tool String Trimmer (Battery Not Included)

Introducing the all-new KST 2540-06 model, now available in 2020! Perfect for those with yards up to half an acre, this 40V gear reduced string trimmer packs a powerful punch that will make yard work a breeze. Please note that the battery and charger are not included with the product.

Equipped with a premium heavy-duty 0.080-inch dual line, this trimmer is designed to power through even the toughest grass and weeds with ease. The bump head feature allows for quick and effortless line replacement, so you can spend more time trimming and less time fiddling with your equipment.

The KST 2540-06 also features an adjustable cutting swath, ranging from 13 inches to 15 inches. This allows for extended runtime on a single charge or faster trimming, depending on your needs. No matter what you choose, this trimmer is sure to get the job done quickly and efficiently.

Starting the trimmer is a breeze thanks to the easy-to-use variable speed trigger. With two-speed settings, you can adjust the power to suit your specific needs. Whether you need to trim around delicate areas or power through tough, overgrown weeds, this trimmer gives you complete control.

7. Worx Wg154 20v Powershare 10" – 12" Cordless String Trimmer & Edger (Battery & Charger Included)

Introducing the ultimate tool to keep your lawn looking pristine without breaking the bank – the 2-in-1 String Trimmer and Edger. This versatile tool not only saves you time and money, but also space in your garage by combining two essential gardening tools into one.

Switching between trimming and edging has never been easier with the rotating head feature. Simply grasp the head, pull it away from the shaft, and turn it 180 degrees to switch functions. This makes it simple and efficient for all users, regardless of experience.

The 2-in-1 String Trimmer and Edger is powered by the same battery that can be found in over 75+ 20V, 40V, and 80V lifestyle, garden, and power tools in the Power Share family. This makes it easy to expand your collection of tools without having to purchase additional batteries.

Weighing in at only 4.2 lbs (3.2 lbs without the battery), this lightweight and compact tool is easy to handle for everyone. The auto-feed line feature ensures that you always have fresh string when you need it. Simply press the button when you need more line and the automatic system will take care of the rest.

The 2-in-1 String Trimmer and Edger also includes an adjustable spacer guard that prevents accidental trimming of plants, lawn decorations, and other sensitive areas of your yard. This feature is particularly useful for those who are new to gardening or have a lot of delicate areas in their yard.

Included in the package are the 20V String Trimmer & Edger, 20V MaxLithium Battery, Trimmer Spool, 20V Battery Charger, and Safety Guard. With all of these features and accessories, the 2-in-1 String Trimmer and Edger is the perfect tool for anyone looking to keep their lawn in top shape without the hassle of multiple tools.

8. Garden Grooming Kit: Trimmer & Blower Combo

Introducing the 40V Combo Kit – the perfect solution for keeping your garden in tip-top shape. This combo set includes a 40V 10In cordless grass trimmer, a 40V cordless leaf blower, 20pcs spare blades, 1pc 40V 2.0Ah battery, and charger – everything you need to tackle your garden cleaning jobs with ease.

The 40V string trimmer is a versatile tool that can easily convert from grass trimmer to edger in seconds with the pivoting trimmer head. With its 10In cutting diameter, it is ideal for long grass such as weeds and unwanted plants in your garden. The ergonomic soft handles provide a comfortable cutting experience, making it lightweight, maneuverable, and easy to use.

The 40V leaf blower is another powerful tool included in this combo set. It can operate at up to 199 km/h of air speed and get up to 385 CFM of air volume at 120 MPH, making it perfect for blowing leaves, snow, dust, and debris, etc. It is also lightweight and easy to maneuver, so you can quickly and easily clean up your garden.

Swift offers a maximum 12-month warranty on the tool and a maximum 6-month warranty on the battery and charger. Their service team is dedicated to making your purchase satisfactory and is more willing than anyone else to help you with any issues you may encounter.

9. Max String Trimmer: 2-Speed Control & Edger

Looking for a versatile and powerful tool for your lawn care needs? Look no further than the LSTE520 20V Max Easy Feed Trimmer from a trusted brand. With the ability to convert from a trimmer to a wheeled edger, this tool offers the versatility you need to tackle a range of outdoor tasks.

Featuring a power drive transmission that delivers increased torque, this trimmer is designed to handle even tough overgrowth with ease. Plus, with two speed controls, you can choose between more power or extended runtime to suit your needs. The line diameter of 0.065 inches and cutting swath of 12 inches ensure that you can cover a wide area efficiently.

But that's not all – the Easy Feed feature allows you to advance your line with just the push of a button, without the need for bumping. This makes it easy to keep your trimming or edging job moving smoothly.

The LSTE520 is also part of the 20V Max system, which means that you can use the same battery for multiple tools, making it a cost-effective option for your lawn care needs. And with the Power Command family of tools, including Easy Feed, Power Cut, and Power Boost, this trimmer is designed to solve common user frustrations when using outdoor power equipment.

Included in the package are two LBXR20 20V Max Lithium Batteries, an LCS1620 Charger, a Guard, and an AFS Spool. With a Lithium Ion power source, you can be confident that this trimmer will provide reliable and long-lasting performance.

10. Ryobi 40v Trimmer: A Cordless Cutting Companion.

This innovative weed trimmer is a must-have for any gardening enthusiast. Designed to work with all RYOBI 40V batteries, this trimmer is a powerful tool that can handle even the toughest yard work.

Thanks to its variable speed trigger, users can easily control the cutting speed for optimal precision. Whether you're tackling a small patch of weeds or a larger area, this trimmer's 11 in. to 13 in. adjustable cutting width ensures longer run time or wider cutting path.

The trimmer comes with 0.080 in. twisted line already installed, so you can start using it straight out of the box. Plus, its auto-feed string head ensures ease of use and quick reloads so you can get back to your yard work in no time.

Please note, however, that this trimmer does not come with a battery or charger. But with its compatibility with all RYOBI 40V batteries, you can easily swap out batteries for continuous use.

Invest in this powerful and versatile weed trimmer today and take the hassle out of yard work.

Best 40V Cordless String Trimmer FAQs

Are there any safety features included in the best 40v cordless string trimmer?

Yes, the best 40v cordless string trimmers come with various safety features to ensure safe and efficient operation. One of the most common safety features is a guard that protects the user from debris and flying objects. Some trimmers also come with a safety switch that prevents the trimmer from accidentally turning on. Another important safety feature is the automatic shut-off function, which stops the trimmer when it overheats or when the battery is low. Additionally, some trimmers have a vibration dampening system that reduces the amount of vibration the user experiences, which can prevent fatigue and strain injuries. It's important to note that while these safety features can reduce the risk of injury, it's still important to follow all instructions and use the trimmer responsibly to ensure safe operation.

Can the best 40v cordless string trimmer be used for edging?

Yes, the best 40v cordless string trimmer can be used for edging. In fact, many of these trimmers come with features that make them ideal for edging. For example, some models have adjustable heads that can be angled for precise edging along sidewalks and driveways. Additionally, many 40v cordless string trimmers come with a built-in edging guide that helps you maintain a straight line as you trim.

When using a cordless string trimmer for edging, it's important to ensure that the string is properly positioned for the job. You'll want to adjust the string so that it's angled slightly toward the ground, which will help you get a clean, even cut. It's also a good idea to work slowly and carefully, making small adjustments as needed to ensure that you're edging in a straight line.

Overall, a 40v cordless string trimmer can be a versatile tool for both trimming and edging tasks. With the right technique and some practice, you can achieve professional-looking results with this type of trimmer.

Does the best 40v cordless string trimmer come with a warranty?

Yes, most of the best 40v cordless string trimmers come with a warranty. The duration of the warranty may vary depending on the brand and model of the string trimmer. Typically, warranties for cordless string trimmers range from 1 to 5 years. It is recommended to check the warranty details before purchasing a cordless string trimmer, as it can provide peace of mind in case of any defect or malfunction in the product. Some manufacturers also offer extended warranty options for an additional cost. It is important to read the warranty terms and conditions carefully to understand what is covered and what is not covered under the warranty. In case of any issues with the cordless string trimmer during the warranty period, customers can contact the manufacturer's customer support for assistance.

How easy is it to replace the string on the best 40v cordless string trimmer?

Replacing the string on the best 40v cordless string trimmer is generally a straightforward process that can be accomplished easily with some basic knowledge and a few simple steps. Firstly, ensure that the trimmer is turned off and unplugged for safety reasons. Then, remove the spool cover and take out the old string. Next, cut a new length of string to the appropriate size and insert it into the spool, following the manufacturer's instructions. Once the string is in place, replace the spool cover and test the trimmer to ensure that it is working correctly. It is important to note that different trimmers may have slightly different procedures for replacing the string, so it is advisable to consult the user manual or contact the manufacturer if you have any questions or concerns. Overall, replacing the string on a 40v cordless string trimmer should not be a difficult task, and with a little practice, it can be done quickly and easily.

How long does the battery last on a 40v cordless string trimmer?

The battery life of a 40v cordless string trimmer varies based on a few factors such as the brand, model, and usage. Generally, most 40v cordless string trimmers come equipped with a lithium-ion battery that can provide up to 30-45 minutes of run time on a single charge. However, some high-end models may offer longer battery life of up to 60-90 minutes.

It's important to note that the battery life can be affected by various factors such as the thickness of the grass, the speed at which you're trimming, and the age of the battery. Additionally, the battery life may also vary depending on the temperature and weather conditions.

To maximize the battery life of a 40v cordless string trimmer, it's recommended to follow the manufacturer's guidelines for charging and storage. Also, it's a good idea to keep an extra battery on hand if you have a larger area to trim or if you need to finish the job quickly.

How much does a high-quality 40v cordless string trimmer cost?

The cost of a high-quality 40v cordless string trimmer can vary depending on the brand, features, and accessories included. On average, you can expect to pay between $150 to $300 for a reliable and efficient 40v cordless string trimmer. Some high-end models with advanced features such as adjustable speed settings, longer battery life, and greater cutting capacity may cost more. However, investing in a high-quality cordless string trimmer can save you money in the long run as it will require less maintenance and provide better results. It is essential to read customer reviews and compare prices and features before making a purchase to ensure that you are getting the best value for your money.

What are the top-rated 40v cordless string trimmers available in the market?

There are several top-rated 40v cordless string trimmers available in the market, and here are a few of them:

1. Greenworks 40V Cordless String Trimmer: This string trimmer has a powerful 40V battery that provides up to 60 minutes of run time. It also features a 14-inch cutting path, adjustable handle, and a pivoting head.

2. EGO Power+ 15-Inch 56-Volt Lithium-Ion Cordless Brushless String Trimmer: This is a powerful string trimmer that features a 15-inch cutting swath, 56-volt lithium-ion battery, and a brushless motor that provides high torque and longer life.

3. Ryobi 40-Volt Lithium-Ion Cordless Attachment Capable String Trimmer: This string trimmer features a 40-volt lithium-ion battery, adjustable cutting width, and a telescoping shaft for easy height adjustment.

4. DEWALT DCST990H1 40V MAX 6.0 Ah Lithium Ion XR String Trimmer: This string trimmer features a high-efficiency brushless motor that delivers longer run time and increased power. It also has a 15-inch cutting swath and a 40V lithium-ion battery that provides up to an hour of run time.

5. Makita XRU15PT1 Lithium-Ion Brushless Cordless String Trimmer Kit: This string trimmer features a brushless motor that delivers up to 6,000 RPM for faster cutting. It also has a 15-inch cutting swath, adjustable speed control, and a 5.0Ah battery that provides up to 60 minutes of run time.

These are just a few of the top-rated 40v cordless string trimmers available in the market. It is always recommended to do thorough research before purchasing a string trimmer to ensure that it meets your specific needs and requirements.

What is the cutting width of the best 40v cordless string trimmer?

The cutting width of a cordless string trimmer can vary depending on the model and brand. However, in general, the best 40v cordless string trimmers have a cutting width between 12 to 15 inches. This cutting width is ideal for trimming grass and weeds in small to medium-sized yards. A wider cutting width can make the trimmer heavier and more difficult to maneuver, while a narrower cutting width may take longer to trim larger areas. It's important to choose a cutting width that is suitable for your specific needs and yard size. Additionally, some cordless string trimmers may have adjustable cutting widths that allow you to customize the trimmer to your specific needs.

What is the maximum cutting speed of the best 40v cordless string trimmer?

The maximum cutting speed of the best 40v cordless string trimmer varies depending on the brand and model. However, most 40v cordless string trimmers have a cutting speed range between 5,000 to 6,500 revolutions per minute (RPM). This cutting speed range is considered high enough to handle tough grass and weeds efficiently.

It is worth noting that cutting speed is not the only factor that determines the performance of a string trimmer. Other factors such as the cutting swath, line diameter, and battery life also play a significant role. Therefore, when choosing the best 40v cordless string trimmer, it is essential to consider all these factors to ensure maximum efficiency and convenience.

Overall, it is recommended to choose a 40v cordless string trimmer with a cutting speed between 5,000 to 6,500 RPM and other features that suit your trimming needs.

What is the weight of the best 40v cordless string trimmer?

The weight of the best 40V cordless string trimmer depends on the specific model and brand. However, in general, cordless string trimmers are designed to be lightweight and easy to maneuver, which is a key advantage of using a cordless tool. On average, a 40V cordless string trimmer weighs between 6-8 pounds, which is relatively light and easy to handle. Some models may be slightly heavier or lighter than this range, depending on the materials and features used in their construction. It's important to consider the weight of a cordless string trimmer when selecting a model, as a lighter weight can make it easier to use for extended periods of time without causing fatigue. Overall, the weight of a 40V cordless string trimmer is typically manageable and should not be a major concern when selecting a model.