Best 40V String Trimmer That Will Transform Your Lawn!
Gardening and yard work often require tools that balance power and ease of use. When managing tough grass and weeds around your home, finding the right string trimmer can make all the difference. The best 40v string trimmer offers a combination of cordless convenience and enough power to handle most trimming tasks efficiently.
This type of trimmer is suitable for homeowners who want a reliable, lightweight tool without dealing with gas or heavy cords. It typically provides longer run times and less maintenance compared to lower voltage models.
In this review, you will learn about the features that set the best 40v string trimmer apart, including battery life, cutting performance, and overall usability. The goal is to help you decide which model meets your yard care needs without unnecessary complexity.
Power Through Your Yard Work with These Top Cordless Trimmers
| Image | Product | Price |
|---|---|---|
Our Recommended 1 ![]() | Black+Decker 40V MAX 13 Inch String Trimmer and Lawn Edger | Buy Now |
Our Recommended 2 ![]() | Greenworks 40V 12″ Cordless String Trimmer, 0.065″ Dual Line with | Buy Now |
Our Recommended 3 ![]() | Greenworks 40V Cordless Yard Tool Combo Kit with 2.0Ah Battery | Buy Now |
1. Black+Decker 40V MAX 13 Inch String Trimmer and Lawn Edger

Designed for effortless lawn care, the Black+Decker 40V MAX 13 Inch String Trimmer and Lawn Edger combines power and convenience to keep your yard pristine. Its cordless design offers the freedom to move without restrictions, while the sharp cutting width makes short work of tough grass and weeds.
Equipped with a reliable 40V MAX Lithium Ion battery, it provides consistent energy for extended use. The intuitive design and automatic features reduce interruptions and improve efficiency.
The Black+Decker 40V MAX string trimmer delivers robust cutting power thanks to its high-torque transmission. This technology ensures the cutting string operates with precision, resulting in clean edges and swift trimming. Its 13-inch cutting swath covers more ground in less time, making yard maintenance quicker.
Its 13-inch cutting swath covers more ground in less time, making yard maintenance quicker. Switching between trimming and edging modes requires only seconds, adding valuable flexibility for various landscaping tasks.
Battery life is easy to monitor via the state of charge indicator, reducing downtime and allowing better planning. The automatic feed system maintains steady line length, so the trimmer works continuously without frequent adjustments.
Built for durability, the lightweight 4-pound tool balances strength and manageable handling, reducing user fatigue during longer sessions.
The device includes a wall-mountable charging station, saving space and keeping the trimmer ready for use at all times. Ideal for tackling overgrown grass and stubborn weeds, this model suits those who prefer cordless convenience alongside dependable cutting power.
Pros
- High-torque transmission delivers strong, efficient cutting performance
- Quick and easy conversion between trimming and edging modes
- Automatic line feeding system provides uninterrupted operation
Cons
- Battery connection to the charger can require careful adjustment
Offering a blend of power, convenience, and adaptability, the Black+Decker 40V MAX string trimmer stands out for maintaining a neat lawn with minimal effort. Its features appeal to those wanting a reliable cordless tool that performs well across various yard tasks while ensuring easy maintenance and storage.
2. Greenworks 40V 12″ Cordless String Trimmer, 0.065″ Dual Line with

Greenworks 40V 12 Cordless String Trimmer offers a powerful and efficient way to keep your yard looking neat. Its cordless design ensures freedom of movement and hassle-free trimming around lawns, sidewalks, and landscaping. The 12-inch cutting path and dual line enhance precision for a clean finish every time.
The 12-inch cutting path and dual line enhance precision for a clean finish every time.
Designed with convenience and performance in mind, this trimmer combines strong cutting ability with ease of use. Its lightweight frame reduces fatigue, making routine yard work much more comfortable and manageable.
Equipped with a 065-inch dual line and a 12-inch cutting width, the trimmer delivers consistent, clean cuts on grass and light weeds without frequent interruptions.
This feature maintains smooth operation and saves time.
The variable speed trigger lets you adjust power effortlessly. Lower speeds are ideal for edging delicate areas, while full power can handle tougher growth requiring extra force.
The ergonomic, well-balanced design reduces strain on your hands and arms, making it comfortable for extended use.
Battery-powered and cordless, this 40V model eliminates the drawbacks of gas-powered trimmers like maintenance and noise, while delivering comparable cutting performance. Its durable build and thoughtful engineering make it suitable for homeowners needing reliable lawn care tools without the hassle of cords or fumes.
Pros
- Automatic line feed system maintains smooth, uninterrupted trimming
- Variable speed control for precision and power versatility
- Lightweight, ergonomically designed for comfortable use
Cons
- The cutting head is heavier compared to some gas-powered models
Overall, the Greenworks 40V Cordless String Trimmer balances ease of use and reliable trimming power. It fits well for homeowners requiring a versatile tool for regular lawn maintenance while reducing noise and emissions found in gas models.
3. Greenworks 40V Cordless Yard Tool Combo Kit with 2.0Ah Battery

Greenworks 40V Cordless Yard Tool Combo Kit offers powerful, versatile yard care without the noise or fuss of gas-powered equipment. Designed to handle overgrown edges and garden borders efficiently, this kit combines a string trimmer and blower in one convenient set. Ideal for creating clean, polished outdoor spaces with minimal effort and maximum comfort.
The lightweight, balanced design allows easy maneuvering around patios, flower beds, and driveways. A single
With quiet operation and no emissions, it’s well-suited to residential neighborhoods and early morning cleanup.
Greenworks’ 40V combo kit includes a 12-inch commercial-grade string trimmer that easily cuts through thick weeds and dense brush. Its .065 auto-feed line delivers consistent power while a 3-year warranty on the head provides added peace of mind.
Complementing the trimmer is a blower with 110 MPH wind speed to clear wet leaves and debris quickly. The cruise control feature maintains constant airflow for effortless gutter and driveway cleaning.
Each tool is powered by a 0Ah lithium-ion battery capable of recharging in just 60 minutes. This battery is compatible with an expanding range of 40V lawn equipment, allowing seamless switching between tasks like mowing, trimming, and sawing.
At only 8 pounds, the trimmer is 30% lighter than many gas alternatives, reducing fatigue during extended use.
Assembly is not required, making setup straightforward. The kit comes with a charger and replacement string, adding value for homeowners focused on convenience and durability.
This combo suits anyone looking for efficient, reliable tools backed by extensive customer praise.
Pros
- Powerful 40V battery system fuels multiple lawn tools with one charge.
- Lightweight trimmer design enhances comfort during prolonged use.
- Blower offers strong airflow with cruise control for effortless cleaning.
Cons
- Battery runtime may be limited on larger or more demanding jobs.
The Greenworks 40V Cordless Yard Tool Combo Kit balances power, convenience, and quiet operation in one versatile package. For those seeking efficient lawn maintenance with low noise and no gas, it stands out as a reliable choice that can handle a variety of yard needs with ease.
4. BLACK+DECKER 40V Max 13 In. String Trimmer Edger and Leaf

Maintaining a tidy yard becomes effortless with the BLACK+DECKER 40V Max 13 In. String Trimmer Edger and Leaf. This cordless combo tool blends the power of a trimmer and edger with the convenience of a leaf blower.
Designed for efficiency and ease, it delivers clean cuts and quick debris clearing without the hassle of cords or gas.
Perfect for homeowners seeking versatility and reliability, this lightweight unit works quietly while packing a punch. Enjoy the freedom of battery-powered operation combined with practical features that simplify lawn care tasks.
The BLACK+DECKER 40V Max model features a POWER DRIVE high-torque transmission that cuts through weeds fast and clean. Its automatic feed spool supplies line as needed, reducing downtime.
This string trimmer also doubles as an edger, making precision trimming along edges simple and effective. The included 40V MAX Sweeper reaches wind speeds up to 130 MPH, swiftly clearing leaves and debris from patios or driveways.
Constructed with lightweight materials and balanced for comfort, this tool minimizes fatigue during extended use. Its quiet operation enhances the user experience, especially in quiet neighborhoods.
Ideal for medium to large yards, it suits users looking for a cord-free solution that simplifies several yard tasks. Assembly is not required, so it’s ready to start working immediately out of the box. The durable build and intelligent design make it a dependable addition to any lawn care collection.
Pros
- High-torque transmission ensures precise and powerful trimming
- Automatic feed spool reduces manual adjustments
- Multi-functional with string trimmer, edger, and leaf blower in one
Cons
- May lack the power needed for extremely dense or overgrown areas
Combining effective performance with convenient features, this BLACK+DECKER tool represents solid value. Its blend of trimming and blowing capabilities offers users a practical, cordless way to maintain a neat and attractive yard.
5. BLACK+DECKER 40V MAX String Trimmer and Lawn Edger, 13 Inch

The BLACK+DECKER 40V MAX String Trimmer and Lawn Edger offers a powerful and versatile solution for maintaining your yard. Combining cordless convenience with adjustable power settings, it efficiently tackles both trimming and edging tasks.
Designed with a robust 40V lithium-ion battery system, this tool delivers consistent power for thick grass and overgrowth. Quick conversion from trimmer to edger allows for neat borders along pathways and driveways, adding precision and ease to lawn care routines.
Performance is enhanced by an upgraded Powerdrive transmission, efficiently transferring motor power to the cutting string. The trimmer’s automatic feed spool reduces interruptions, providing continuous trimming without manual adjustments. Power can be easily tailored using a dial, letting you balance strength and battery life based on your yard’s needs.
Power can be easily tailored using a dial, letting you balance strength and battery life based on your yard’s needs.
Construction involves a mostly plastic body with a durable metal shaft, keeping the tool lightweight but sturdy enough for demanding chores. The adjustable loop handle and length settings offer ergonomic support, ensuring comfortable operation over longer periods. Battery installation on spring-loaded tracks secures a stable connection, while a charge indicator keeps you informed during use.
The head’s 90-degree rotation enables smooth switching between trimming and edging modes, with a metal guard offering guidance and protection. Compatible with existing BLACK+DECKER 40V MAX batteries, it fits well into a homeowner’s collection of cordless outdoor tools.
Ideal for small to medium yards, it performs well on dense Bermuda grass and overgrown spots. A three-year limited warranty adds peace of mind to this reliable gardening companion.
Pros
- Adjustable power dial for customized trimming and extended battery life
- Quick conversion between trimmer and edger modes for versatile lawn care
- Automatic line feed reduces downtime and simplifies operation
Cons
- Battery and charger sold separately, requiring additional purchase
BLACK+DECKER’s 40V MAX String Trimmer and Lawn Edger delivers reliable performance and flexibility for various yard tasks. Its thoughtful design, combined with steady power output, makes it a smart choice for maintaining neat, well-groomed lawns efficiently and comfortably.
6. Greenworks 40V Cordless 2-in-1 Trimmer Edger (Gen 2) – 13″

Greenworks presents the 40V Cordless 2-in-1 Trimmer Edger (Gen 2), designed to simplify lawn care with effortless switching between trimming and edging modes. Its lightweight build and adjustable features provide a comfortable user experience for various yard maintenance tasks.
This tool promises precision and convenience for maintaining neat landscapes.
Equipped with a steel edging guide and a 7-position pivoting head, it adapts to multiple trimming challenges. The cordless design eliminates fumes and gas hassles, making it ideal for eco-friendly lawn care.
The Greenworks 40V Cordless 2-in-1 Trimmer Edger boasts a robust design that supports quick mode changes in just three clicks. This ease of conversion beats the lengthy process of gas trimmers.
The pivoting head offers seven distinct positions, allowing effortless trimming beneath decks, along sidewalks, and around flower beds. The auto-feed line, sized at
065 inches, handles tough weeds up to 5 inches thick.
Adjustability is a strong suit with a telescoping shaft extending from 40 to 52 inches and a multi-position handle, accommodating users from 5’2 to 6’4. Weighing only
The maintenance-free motor runs quietly at 78 dB, significantly quieter than gas alternatives, and lasts over a decade, adhering to EPA and CARB standards. Battery compatibility across over 100 Greenworks tools adds extra value and flexibility.
Overall, this trimmer edger suits homeowners tackling moderate to dense weeds and lawn edges. It strikes a solid balance between power and maneuverability, making yard work less demanding and more efficient without sacrificing quality or convenience.
Pros
- Simple 2-in-1 mode switching with steel edging guide for precise borders
- Lightweight design with adjustable shaft and handle for comfortable use
- Quiet operation and long-lasting, maintenance-free motor with battery compatibility
Cons
- Heavier cutting end, which may feel cumbersome during extended use
Greenworks 40V Cordless 2-in-1 Trimmer Edger blends versatility, ease, and eco-friendly performance. Its thoughtful features and reliable power setup make it a practical choice for residential lawn care, especially when compared to gas trimmers that need more maintenance and add noise.
7. Worx WG183 40V 13″ Cordless String Trimmer (Batteries & Charger

Experience effortless yard work with the Worx WG183 40V 13 Cordless String Trimmer. Its lightweight design allows easy handling, reducing fatigue during extended use.
The trimmer is engineered to deliver professional-level power without the hassle of cords or heavy gas engines.
Designed for efficiency, this tool features a dual-exit cutting head and an automatic-feed spool system. Together, they enhance cutting performance and line advancement, making yard maintenance smoother than ever before.
The Worx WG183 offers a 13-inch cutting width that perfectly balances reach and control for various trimming tasks. A powerful brushless motor produces up to 7,000 RPM, providing strong and consistent cutting ability suited for small to medium yards. The included batteries offer portability and compatibility with other Worx tools, thanks to the PowerShare system.
The included batteries offer portability and compatibility with other Worx tools, thanks to the PowerShare system.
The adjustable auxiliary handle helps customize grip and comfort during operation, minimizing strain. Despite its robust power, the trimmer remains remarkably lightweight, just under 10 pounds, enhancing maneuverability around tight spaces. Users benefit from a no-assembly-required design that’s ready for immediate use out of the box.
Compared to gas or corded trimmers, this cordless model requires less maintenance and produces zero emissions. Its dual-battery system ensures longer runtime, and the brushless motor extends tool life while maximizing power efficiency.
Pros
- Lightweight and ergonomic design reduces user fatigue
- Automatic-feed spool and dual-exit head boost cutting efficiency
- PowerShare batteries compatible with multiple Worx tools
Cons
- Battery capacity may limit runtime during larger yard projects
Combining power, convenience, and versatility, the Worx WG183 string trimmer stands out as a smart choice for yard care. It delivers professional-level performance while being easy to handle and maintain. For those wanting a reliable cordless trimmer with expandable battery options, this model meets a wide range of needs effectively.
8. SKIL 40V 14 in.String Trimmer Kit with Twist Load Including

Effortless lawn maintenance meets powerful performance with the SKIL 40V 14 in. String Trimmer Kit.
Experience the freedom of a battery-powered tool built for versatile trimming needs.
Combining a fast-charging battery and smart features, this string trimmer helps you tackle grass and weeds with ease. Whether managing tight spaces or open areas, it provides consistent cutting capability to keep your yard looking polished.
The SKIL 40V String Trimmer Kit arrives complete with a 0Ah PWR CORE 40 battery and 60W charger for quick recharging. Its cordless design eliminates frustrating cords and fuel smells, making routine trimming simpler and cleaner.
The 14-inch cutting swath allows efficient coverage, helping you finish jobs faster.
Line loading is hassle-free thanks to the Twist Load system; just insert and twist to reload line effortlessly. A dual line bump feed mechanism releases line smoothly without interrupting your work flow.
Comfort is enhanced with an adjustable auxiliary handle that adapts to your preferred grip, reducing fatigue during extended tasks. The trimmer features an IPX4 weather resistance rating, allowing use even in damp conditions while protecting its durability.
Overall, it offers robust performance suitable for homeowners wanting a dependable tool without gas engine maintenance.
Pros
- Convenient cordless operation with included battery and charger
- Easy line replacement with the Twist Load and dual line bump feed
- Adjustable handle and two-speed settings for user comfort and control
Cons
- The trimmer head may require manual reload after initial line runs out
Balancing power, convenience, and weather-resistant features, this trimmer suits users looking for reliable cordless solutions. While its reload system might need manual attention after some use, the overall package delivers solid cutting performance consistently. The SKIL 40V String Trimmer is a practical choice for regular lawn care with minimal fuss.
The SKIL 40V String Trimmer is a practical choice for regular lawn care with minimal fuss.
9. Greenworks 40V 15″ Cordless String Trimmer, 2.0Ah Battery and Charger

Greenworks 40V 15 Cordless String Trimmer offers powerful performance with cordless convenience. Its 15-inch cutting path and adjustable speed trigger make yard work efficient and manageable for various trimming tasks. Designed for both comfort and strength, it suits diverse outdoor maintenance needs.
Designed for both comfort and strength, it suits diverse outdoor maintenance needs.
Experience the difference with a lightweight and easy-to-use tool that reduces fatigue while delivering motor torque strong enough to handle thick grass and tough weeds. The push-button start eliminates messy fuel or complicated setups, making each use quick and hassle-free.
The Greenworks string trimmer features a robust 40V battery-powered motor paired with a 15-inch cutting swath. Dual-line bump feed head allows for swift line advancement to keep trimming uninterrupted.
The TorqDrive system enhances the cutting power by delivering 30% more torque, ideal for powering through dense patches and stubborn weeds. Despite its strength, the trimmer remains lightweight with an ergonomic design that minimizes user strain during extended use.
Starting the device is simple thanks to a push-button ignition requiring no gasoline, carburetor adjustments, or spark plug maintenance. The cordless design promotes freedom of movement, eliminating cord tangles and restrictions common with electric alternatives.
Suitable for homeowners maintaining medium to large yards, especially those dealing with thick weeds or trimming after mowing. While highly effective on weeds and short-to-medium grass, it may slow down in very tall grass and might require a different line for smoother operation. Overall, it balances power, convenience, and comfort with strong build quality.
Overall, it balances power, convenience, and comfort with strong build quality.
Pros
- Powerful 40V motor with TorqDrive for 30% more torque
- Lightweight and ergonomically designed for reduced fatigue
- Variable speed trigger allows precise control over cutting speed
Cons
- May struggle with very tall grass, occasionally causing line wrap
The Greenworks 40V 15 Cordless String Trimmer is a reliable and user-friendly choice for tackling a variety of outdoor trimming tasks. Its blend of power, comfort, and cordless freedom makes it a practical addition to any lawn care routine.
10. 40V 12″ STRING TRIMMER

Experience powerful and hassle-free lawn care with the 40V 12 String Trimmer by RYOBI. Designed for ease and efficiency, this tool delivers cordless freedom paired with adjustable speed for precise trimming every time.
Whether tidying garden edges or tackling overgrown patches, it offers a balanced combination of performance and convenience for a cleaner yard.
The trimmer features adjustable speed control, allowing users to fine-tune cutting power tailored to different grass types and thicknesses. Its effortless auto-feed head replenishes line instantly, reducing interruptions during work.
With a versatile cutting width adjustable between 11 and 13, it adapts to narrow spaces or wider swaths to match your trimming needs. The 8000 RPM motor ensures robust cutting power equivalent to some gas models, making it a reliable choice for homeowners.
Battery-powered and lightweight at just over 6 pounds, this trimmer enhances maneuverability and minimizes fatigue during extended use. Assembly is straightforward, and the cordless design means no cords to limit movement or cause hassle.
Built with durable materials and engineered by RYOBI, a trusted brand, it stands up well to regular lawn maintenance. It’s particularly well suited for adults looking to maintain medium to large lawns efficiently without dealing with fuel or heavy equipment.
Pros
- Adjustable speed control for customized cutting performance
- Auto-feed string head enables quick and easy line reloads
- Lightweight design improving comfort during prolonged use
Cons
- Battery sold separately, may require purchase if not already owned
Combining versatility, power, and user-friendly features, the 40V 12 String Trimmer is a compelling option for maintaining neat garden edges. It balances efficiency and comfort, making lawn upkeep less laborious and more manageable than gas-powered counterparts.
11. Worx String Trimmer Cordless GT3.0 20V PowerShare 12″ Edger &

The Worx String Trimmer Cordless GT3.0 combines the power of a string trimmer and the precision of an edger in one convenient device.
Its lightweight design and cordless operation make yard maintenance easier and more efficient for everyday homeowners.
Experience seamless switching between trimming and edging thanks to an innovative 2-in-1 design. The push-button Command Feed spool ensures quick line feeding, keeping your work continuous and hassle-free.
Designed for versatility, this cordless string trimmer delivers a 12-inch cutting diameter with a 7600 rpm motor speed. Its adjustable spacer guard prevents damage to plants and features rubberized wheels for guiding straighter, cleaner edges.
The head’s 90° tilt lets you trim on slopes and reach tight spots with ease. At only 3 pounds, maneuvering across your lawn is simple without fatigue.
The tool includes two 20V MaxLithium batteries that not only power the trimmer but also fit other WORX PowerShare tools. This adds flexibility and value to your collection of garden tools.
Assembly is straightforward, and replacement spools are easy to install, making upkeep trouble-free.
While it excels for average-sized yards with standard grass and light weeds, it may not suit large lots with dense, tough vegetation. Compared to gas-powered edgers, it provides quieter, cleaner operation without fuel concerns. The integrated edging wheels improve balance and control, enhancing the appearance of your lawn’s borders.
Overall, it offers a reliable performance for residential lawn care with thoughtful design features to simplify outdoor chores.
Pros
- Dual function as a trimmer and edger for versatile lawn care
- Lightweight with ergonomic design reduces user fatigue
- Includes two rechargeable 20V PowerShare batteries for extended runtime
Cons
- Edging wheels position may affect balance compared to previous models
This string trimmer offers strong performance combined with handy features that streamline lawn maintenance. Its cordless convenience and compatibility with a range of WORX tools make it a smart addition for homeowners who value both efficiency and ease of use.
For typical yards, it delivers reliable trimming and edging capabilities without the noise and mess of gas equipment.
12. BLACK+DECKER 40V MAX 13 in String Trimmer Edger Cordless with

Experience efficient and cordless yard maintenance with the BLACK+DECKER 40V MAX 13 in String Trimmer Edger. Designed to deliver powerful performance with a lithium-ion battery, it simplifies trimming and edging tasks without the hassle of cords or gas.
The versatile tool adjusts easily to meet different landscaping needs.
Combining strength and convenience, this trimmer features a PowerCommand Dial for selecting between high power and extended runtime. Its POWERDRIVE transmission ensures maximum power reaches the cutting string, speeding up yard work. The automatic feed spool supplies line seamlessly, removing the need for bumping or manual adjustments during operation.
The battery system includes a state of charge indicator for monitoring remaining power, paired with a fast charger that recharges batteries in two hours or less. Users can convert the tool from trimmer to edger effortlessly, enhancing its functionality. Operating at speeds up to 8500 RPM, it handles tough weeds and grass with ease.
Comfort is a priority, with an adjustable height and soft-grip handle ensuring ease during long sessions. Its sturdy build balances weight and durability, while the kit includes everything necessary to get started right away: battery, charger, spool, guard, and an auxiliary handle.
Pros
- PowerCommand Dial provides customizable power and runtime options
- Automatic feed spool offers hassle-free line advancement without bumping
- Converts quickly from trimmer to edger for versatile lawn care
Cons
- Lacks automatic shutoff to protect lithium-ion battery from over-discharge
The BLACK+DECKER 40V MAX string trimmer is a reliable and adaptable lawn tool for homeowners seeking cordless convenience and strong performance. Its ease of use, powerful motor, and smart features help complete yard tasks efficiently while maintaining comfort over extended periods. A great choice for trimming and edging needs without the mess of gas-powered alternatives.
13. SKIL PWR CORE 40 Brushless 40V 16” Multi-Head String Trimmer

Maintain your yard effortlessly with the SKIL PWR CORE 40 Brushless 40V 16” Multi-Head String Trimmer. Designed to deliver cordless convenience and powerful performance, this trimmer kit is a reliable companion for tackling overgrown grass and weeds.
The trimmer comes with a 0Ah lithium battery and an Auto PWR JUMP charger, providing longer run times and extended battery life. With up to a 16-inch cutting swath, clearing large areas becomes a breeze, while the dual line bump feed system simplifies line advancement without pausing work.
With up to a 16-inch cutting swath, clearing large areas becomes a breeze, while the dual line bump feed system simplifies line advancement without pausing work.
Equipped with a digital brushless motor, the SKIL trimmer offers enhanced power and durability compared to traditional gas models. This motor supports longer tool life and quieter operation, making yard maintenance less intrusive. Cooling materials wrapped around the battery cells reduce overheating and extend runtime by 25 percent.
Switch between two speed settings to balance cutting power and battery longevity according to your task. The Twist Load Head streamlines the reloading process; simply insert and twist the line to get started without complications.
Adjustable auxiliary grips provide greater control and comfort during extended use. The 40V power head is compatible with various SKIL attachments, increasing the tool’s functionality.
Pros
- Long-lasting PWR CORE 40 battery with cooling technology
- Dual line bump feed for quick and easy line advancement
- Attachment-ready power head for versatile yard maintenance
Cons
- Requires assembly before first use
This string trimmer balances power, efficiency, and ease of use in a cordless design. It fits well for homeowners seeking a dependable tool capable of handling thick weeds and grass with minimal downtime. Compared to similar models, the SKIL PWR CORE 40 stands out with its impressive battery life and user-friendly features, making it an excellent investment for everyday lawn care.
14. Kobalts 40-Volt Max 15-in Straight Cordless String Trimmer (Battery/Charger Not

Experience efficient yard work with the Kobalt 40-Volt Max 15-in Straight Cordless String Trimmer. Designed to handle grass and weeds quickly, this tool delivers reliable cutting power for maintaining medium-sized lawns. Its cordless design offers freedom from tangled cords and outlets, making outdoor trimming hassle-free.
Its cordless design offers freedom from tangled cords and outlets, making outdoor trimming hassle-free.
Ideal for property owners with up to half-acre yards, the trimmer adapts to various trimming needs. The adjustable cutting width and dual line feed ensure thorough results on different types of vegetation.
Its ergonomic build helps reduce fatigue during prolonged use.
The Kobalt 40V string trimmer operates on a bare-tool basis, allowing you to use your existing Kobalt 40V battery and charger. This design supports efficient battery management without needing extra hardware for those already invested in the Kobalt system. An adjustable cutting swath ranges from 13 inches to 15 inches to balance power usage and trimming speed.
Equipped with premium 080-inch dual-line feed bump head, it cuts through tough grass and weeds without struggle.
The tool runs at 11,000 RPM for vigorous and consistent trimming output.
Despite its powerful mechanics, this string trimmer remains user-friendly. Lightweight at 11 pounds and measuring 38 inches in length, it is easy to maneuver around corners and garden beds.
Assembly is required but straightforward, and the sturdy materials ensure robustness during heavy-duty yard work.
Its capability to work seamlessly without interchangeable or expandable heads provides solid performance over some competitors. Anyone looking to upgrade existing Kobalt tools or add a reliable trimmer to their cordless arsenal will find this product aligns well with their needs, combining longevity with precision.
Pros
- Adjustable cutting width for customized trimming and extended runtime
- Durable 0.080-inch dual-line feed easily powers through thick grass and weeds
- Two-speed variable trigger control for better efficiency and precision
Cons
- Sold as a bare tool with no battery or charger included
For homeowners who already own Kobalt 40V batteries, this string trimmer presents a practical and effective option. Its combination of power, adjustability, and ease of use supports a well-manicured lawn without unnecessary complexity or expense.
15. RB 17″ Cordless String Trimmer, 40V Lithium Battery Weed Wacker

Experience the power and convenience of the RB 17 Cordless String Trimmer, designed to deliver strong performance with the ease of cordless operation. Its robust brushless motor offers impressive speed, rivaling many gas-powered alternatives while eliminating the hassle of fuel. Lightweight and user-friendly, this trimmer helps maintain your lawn with precision and comfort.
Combining versatility and efficiency, it features a 2-in-1 design allowing effortless switching between trimming and edging tasks. The adjustable telescopic shaft and ergonomic handle ensure personalized use for extended periods without fatigue. Whether tackling tough weeds or neatly trimming grass edges, this tool provides reliable performance every time.
Whether tackling tough weeds or neatly trimming grass edges, this tool provides reliable performance every time.
The RB 40V 17” Cordless String Trimmer excels with its brushless motor that delivers gas-like power, reaching up to 5800 RPM for fast, effective cutting. Its 17-inch cutting swath paired with a dual-feed spiral twist line allows smooth handling of dense grass and stubborn weeds. This feature-packed model weighs only
6 pounds, making it one of the lighter options without sacrificing strength.
Designed for convenience, the telescopic shaft extends to reach difficult corners, adapting easily to different user heights. The 2-in-1 trimmer and edger functionality saves storage space and switching time with a simple 90° rotation.
With a runtime of up to 45 minutes per charge, it supports uninterrupted work, ideal for medium to large lawn care.
Reloading the bump-feed trimmer line takes less than a minute, enhancing productivity on the job. The package includes additional trimmer line rolls for continuous use. Backed by a 3-year warranty on both tool and battery, it provides peace of mind alongside practical design.
This model is a solid choice for homeowners looking for efficient, cordless lawn maintenance equipment.
Pros
- Powerful brushless motor that matches gas trimmer performance
- Lightweight and ergonomically designed for comfortable handling
- Versatile 2-in-1 function switches easily between trimming and edging
Cons
- Battery runtime may vary with heavy use or dense vegetation
Combining strong power with user-friendly features, the RB 17 Cordless String Trimmer is a dependable and versatile tool. It suits homeowners needing a lightweight yet efficient solution for trimming and edging without the noise and maintenance of gas models.
Top 40V String Trimmers: Best Picks & Buying Guide 2024
Durability and maintenance
Choosing the best 40v string trimmer often means paying attention to the quality of materials used in its construction, as those made from sturdy components tend to resist wear and exposure to different weather conditions better. A trimmer that offers ease when replacing the trimmer line can save time and frustration, especially for beginners looking for straightforward maintenance tasks. Regular upkeep, such as cleaning the cutting head and checking the battery health, helps keep performance consistent and prolongs the tool’s working life.
Selecting a model designed to handle moisture and outdoor elements without rusting or deteriorating adds to its reliability over time. Taking these points into account will help anyone find a 40v string trimmer that is both efficient in use and manageable in terms of care.
Trimmer design and build
When choosing a string trimmer, paying attention to its weight and ergonomics greatly affects comfort during extended use. A lighter model is easier to maneuver and reduces fatigue, especially when working on uneven terrain or trimming for long periods. The type of shaft plays a role in handling; straight shafts generally offer extended reach and are better suited for heavy-duty tasks, while curved shafts provide more compactness and are often lighter, making them simpler to handle in tighter spaces.
The handle grip also matters since a well-designed grip that fits comfortably in your hand can prevent strain. Adjustable handles add versatility by allowing you to customize the grip position to better suit your height and the trimming angle, enhancing overall control and reducing wrist fatigue.
Paying attention to these features helps select a tool that not only performs well but feels comfortable to use throughout your outdoor projects.
Safety and comfort
Choosing the best 40v string trimmer involves paying attention to features that promote safety and comfort during use. Antivibration technology plays a key role by reducing the strain on your hands and arms, making it easier to handle the trimmer for extended periods. Equipping the trimmer with safety guards and shields helps protect you from flying debris and accidental contact with the cutting line, contributing to a safer working environment.
Additionally, opting for models designed to keep noise levels low can enhance comfort, especially when trimming near neighbors or in noise-sensitive areas. These aspects make the trimmer not only efficient but also more user-friendly, allowing for better control and less fatigue.
Whether you’re maintaining your garden’s edges or clearing overgrown areas, focusing on these safety and comfort features can greatly improve your overall experience with a 40v string trimmer.
Power and battery life
Choosing a string trimmer that offers reliable voltage and strong motor performance can make your gardening tasks much easier. Models with a higher voltage typically provide better cutting power, allowing you to handle thicker grass and tougher weeds more efficiently.
Battery capacity also plays a key role in how long you can work without interruptions; a larger capacity means extended runtime so you can cover more ground on a single charge. The time it takes to recharge the battery varies between products, but faster charging options can help minimize downtime. Some batteries are designed to be compatible across a range of tools from the same brand, which adds convenience if you own multiple cordless garden devices.
Considering these factors will help you find a trimmer that fits your yard size and maintenance needs while providing the freedom to move without cords holding you back.
Cutting performance and features
When choosing a 40v string trimmer, paying attention to the cutting width and line thickness helps determine how efficiently the tool will handle different types of grass and weeds. A wider cutting width allows for quicker trimming of large areas, while thicker line diameters provide better durability for tougher vegetation. Variable speed settings add versatility by letting you adjust the power output based on the task, which can improve battery life and precision.
Another feature to weigh is the type of line advance system; automatic feed can save time and effort by continuously delivering fresh line, while bump feed requires manual tapping to release more line, offering more control for specific trimming situations. Balancing these characteristics according to the areas you need to maintain and your preferred handling style will make the trimming experience more effective and comfortable.
Price and warranty
When selecting a 40v string trimmer, it’s helpful to find a model that offers a good balance between affordability and quality to get the most value for your investment. Many options on the market provide a range of features suited for light garden maintenance to more demanding trimming tasks, so assessing what fits your typical yard work needs will guide you in choosing the right tool. Customer support plays an important role in ensuring long-term satisfaction, as responsive service can assist with troubleshooting and guidance on maintenance.
Additionally, having easy access to replacement parts such as trimmer lines, batteries, or guard components can save time and money over the lifetime of the trimmer, making some brands more convenient than others. Considering these factors together helps create a smooth ownership experience and ensures the trimmer remains effective and reliable for its intended purposes.
People Also Asked
How Long Does The Battery Typically Last On A 4String Trimmer?
The battery life of a 4-string trimmer typically lasts between 30 to 60 minutes on a full charge, depending on the model and battery capacity. Higher-end models with larger lithium-ion batteries can run longer, sometimes up to 90 minutes with moderate use. Factors such as cutting thick or dense vegetation, using higher power settings, and operating in cold weather can reduce battery runtime. For extended trimming sessions, having a spare battery or opting for a model with fast charging capabilities is recommended.
How Does A 4String Trimmer Compare To Other Voltage Trimmers In Terms Of Performance?
A 4-string trimmer generally offers enhanced cutting width and efficiency compared to single or dual-string trimmers, making it ideal for larger lawns or tougher vegetation. While higher voltage trimmers (e.g., 40V or 60V) typically provide more power and longer runtime, a 4-string trimmer balances performance with versatility, allowing faster trimming and fewer passes. However, it may consume more battery power and be slightly heavier. Overall, a 4-string trimmer delivers robust performance for medium to heavy-duty tasks but depends on voltage and battery capacity for optimal results.
What Features Should I Look For When Choosing The Best 4String Trimmer?
When choosing the best 4-string trimmer, look for features such as a powerful yet efficient motor, preferably brushless for durability and longer life. Check the cutting width and line diameter to match your trimming needs. Adjustable shaft length and ergonomic handles enhance comfort during use. Battery-powered models should have a long-lasting, quick-charging battery for convenience. Additionally, lightweight design and easy line replacement are important for user-friendliness. Safety features like a guard and automatic shut-off also contribute to a better trimming experience.
What Are The Top-Rated 4String Trimmers Available In The Market?
Top-rated 4-string trimmers known for durability and performance include the Stihl FS 90, Husqvarna 128LD, Echo SRM-225, and Makita XRU15. The Stihl FS 90 offers powerful engine performance ideal for heavy-duty trimming. Husqvarna 128LD is lightweight and easy to handle, perfect for residential use. Echo SRM-225 provides a reliable balance of power and maneuverability, while Makita XRU15 features cordless convenience with strong runtime. These models receive high reviews for efficiency, ease of use, and long-lasting build quality, making them popular choices among professionals and homeowners alike.
Are 4String Trimmers Suitable For Heavy-Duty Lawn Trimming Tasks?
4-string trimmers are generally not suitable for heavy-duty lawn trimming tasks. They are designed more for light to medium-duty work, such as trimming grass and small weeds around lawns and gardens. Heavy-duty tasks typically require more powerful equipment, like gas-powered trimmers with thicker, single or double cutting lines or blade attachments that can handle dense vegetation, tough weeds, and brush. Using a 4-string trimmer for demanding jobs may lead to faster wear and reduced efficiency, making them better suited for regular, lighter trimming maintenance.
Conclusion
The best 40v string trimmer offers a powerful and efficient solution for maintaining your lawn with less noise and zero emissions compared to gas models. Its cordless design provides excellent maneuverability and freedom, making it ideal for homeowners seeking convenience and ease of use. While battery life may limit extended heavy-duty tasks, quick charging capabilities help minimize downtime.
This tool suits those with medium to large yards who want a balance between performance and eco-friendliness. Potential buyers should consider the size of their yard and frequency of use when making a choice.
Overall, the best 40v string trimmer combines portability, power, and user-friendliness, making it a reliable option for most residential trimming needs without overwhelming complexity or cost.