Top 10 Best cordless string trimmer 40 volts in 2025
Introduction
Looking for a reliable cordless string trimmer 40 volts in 2025? You’re not alone. With so many models available today, it’s easy to get lost—especially when descriptions are vague or customer reviews are all over the place. That’s why we decided to sort things out. Not by claiming to know everything, but by analyzing what sells well, what real users say, and what’s worth your attention both on paper and in practice. Our goal isn’t to drown you in technical details, but to guide you toward the best possible choices—without wasting hours comparing on your own. In short, a practical and hopefully useful guide.
【2-in-1 Cordless Trimmer and Edger】This battery-operated lawn weeder is effortlessly switchable between a string trimmer and an edger in a matter of seconds, catering to your diverse gardening needs. The cordless electric weed whacker comes with a charger and two batteries for extended use.
【Powerful Motor】The powerful alternator makes weeding more efficient.The weed wacker is battery operated, with a high-capacity battery for longer use. You won't have to recharge frequently for large garden trimming tasks.
【User-friendly Design】The telescoping cordless weed wacker with 180°adjustable auxiliary handle, lock-off button to prevent accidental activation. Ergonomic and compact design, making the lightweight weed wacker trimmer easy for women or men to operate with only one hand without fatigue on sloped terrain or in tight space.
【Automatic Line Feed】The automatic line feeding head of this cordless battery weed trimmer quickly feeds the line as needed and works smoothly without interruption. 12inch cut path gets the job done fast.
【Perfect Effect】 60° adjustable cutting head enables you to trim from three angles, ensuring every corner is touched and revealing a flawlessly manicured lawn.The spacer guard can protect your plants, landscape features, and lawn ornaments.
POWERFUL, LIGHTWEIGHT AND WELL BALANCED GRASS TRIMMER - with adjustable front handle to set to a comfortable working height and 2 spilt shaft for easy storage - ideal for trimming long grass where your lawnmower cannot reach
NEW GENERATION LITHIUM 40V 2Ah BATTERY - powered by an advanced battery that you can use in any Greenworks 40V tool to cut waste, save money and storage space
EASY LINE CHANGES WITH NO FIDDLY THREADING - when you need to replace the line, simply twist off the head and push the new line straight through. Auto line feed pushes out a length of new line every time you start the trimmer
PROTECTION FOR PLANTS AND TREES - you can vary the speed for more gentle strimming around delicate plants, and a built in plant guard allows you to protect the bark at the base of trees by placing it against the trunk while you cut
3 YEAR GUARANTEE WITH 2 YEAR BATTERY WARRANTY – by Greenworks, a world leader in electric tools and battery technology, with a global reputation for smart design, high performance and outstanding customer service
Power and Efficiency - Powered by a 2 x 20v batteries, the WG183E offers superior performance for large lawns and stubborn weeds. Its efficient design and AutoFeed mechanism ensure a smooth and uninterrupted operation, delivering fresh line at every push of the start button. Plus, with the convenience of cordless operation, you can easily move around your garden without the hassle of cords.
AutoFeed Mechanism - The WG183E comes with an advanced AutoFeed mechanism that extends the cutting line as needed by simply releasing and reactivating the power switch. This ensures optimal performance and efficiency, making your trimming tasks easier and more convenient. The tool also includes a battery charger for quick and easy charging of your Worx PowerShare batteries.
Lightweight and Ergonomic Design - The WG183E cordless line trimmer is designed with user comfort in mind. Its lightweight and balanced design reduces muscle fatigue, making it ideal for prolonged use. The long straight shaft allows for extra reach, reducing the need for excessive walking and bending. Whether you're tackling a large lawn or stubborn weeds, this trimmer makes the task easier and more comfortable.
Dual Line and Large Cutting Swath - The WG183E cordless line trimmer features a dual line and a large 33 cm cutting swath. This allows for increased clearing capacity, making it perfect for tackling large lawns and stubborn weeds. With this efficient design, you can quickly and effectively maintain your garden, achieving a clean and tidy finish every time.
Expandable Power with Worx PowerShare - The WG183E cordless line trimmer is part of the Worx PowerShare battery system. This means you can share any Worx PowerShare 18 V (20 V MAX) batteries between your Worx tools, expanding your power and efficiency. This system not only saves you money by reducing the need for multiple batteries and chargers, but also increases convenience and flexibility in your garden maintenance tasks.
How to choose a good cordless string trimmer 40 volts?
On the surface, choosing a cordless string trimmer 40 volts seems simple. But once you dig in, it gets more complicated. Between technical differences, unfamiliar brands, and unclear features, it’s better to ask the right questions:
Usage: Will you use it daily or only occasionally? That heavily influences the right model.
Budget: No need to go for the most expensive one right away. What matters is the value for money.
Key factors:
Durability, build quality, lifespan
Truly useful features (not just marketing buzz)
User reviews, especially after weeks or months
Availability of customer service in case of issues
We’ve cross-checked multiple sources: Amazon data, detailed reviews, search trends… and a bit of intuition too—because numbers don’t tell the whole story. This mix allows us to build our ranking, which we update regularly. The goal isn’t to just list names but to guide you toward what truly works.
【2-in-1 Cordless Trimmer and Edger】This battery-operated lawn weeder is effortlessly switchable between a string trimmer and an edger in a matter of seconds, catering to your diverse gardening needs. The cordless electric weed whacker comes with a charger and two batteries for extended use.
【Powerful Motor】The powerful alternator makes weeding more efficient.The weed wacker is battery operated, with a high-capacity battery for longer use. You won't have to recharge frequently for large garden trimming tasks.
【User-friendly Design】The telescoping cordless weed wacker with 180°adjustable auxiliary handle, lock-off button to prevent accidental activation. Ergonomic and compact design, making the lightweight weed wacker trimmer easy for women or men to operate with only one hand without fatigue on sloped terrain or in tight space.
【Automatic Line Feed】The automatic line feeding head of this cordless battery weed trimmer quickly feeds the line as needed and works smoothly without interruption. 12inch cut path gets the job done fast.
【Perfect Effect】 60° adjustable cutting head enables you to trim from three angles, ensuring every corner is touched and revealing a flawlessly manicured lawn.The spacer guard can protect your plants, landscape features, and lawn ornaments.
POWERFUL, LIGHTWEIGHT AND WELL BALANCED GRASS TRIMMER - with adjustable front handle to set to a comfortable working height and 2 spilt shaft for easy storage - ideal for trimming long grass where your lawnmower cannot reach
NEW GENERATION LITHIUM 40V 2Ah BATTERY - powered by an advanced battery that you can use in any Greenworks 40V tool to cut waste, save money and storage space
EASY LINE CHANGES WITH NO FIDDLY THREADING - when you need to replace the line, simply twist off the head and push the new line straight through. Auto line feed pushes out a length of new line every time you start the trimmer
PROTECTION FOR PLANTS AND TREES - you can vary the speed for more gentle strimming around delicate plants, and a built in plant guard allows you to protect the bark at the base of trees by placing it against the trunk while you cut
3 YEAR GUARANTEE WITH 2 YEAR BATTERY WARRANTY – by Greenworks, a world leader in electric tools and battery technology, with a global reputation for smart design, high performance and outstanding customer service
Power and Efficiency - Powered by a 2 x 20v batteries, the WG183E offers superior performance for large lawns and stubborn weeds. Its efficient design and AutoFeed mechanism ensure a smooth and uninterrupted operation, delivering fresh line at every push of the start button. Plus, with the convenience of cordless operation, you can easily move around your garden without the hassle of cords.
AutoFeed Mechanism - The WG183E comes with an advanced AutoFeed mechanism that extends the cutting line as needed by simply releasing and reactivating the power switch. This ensures optimal performance and efficiency, making your trimming tasks easier and more convenient. The tool also includes a battery charger for quick and easy charging of your Worx PowerShare batteries.
Lightweight and Ergonomic Design - The WG183E cordless line trimmer is designed with user comfort in mind. Its lightweight and balanced design reduces muscle fatigue, making it ideal for prolonged use. The long straight shaft allows for extra reach, reducing the need for excessive walking and bending. Whether you're tackling a large lawn or stubborn weeds, this trimmer makes the task easier and more comfortable.
Dual Line and Large Cutting Swath - The WG183E cordless line trimmer features a dual line and a large 33 cm cutting swath. This allows for increased clearing capacity, making it perfect for tackling large lawns and stubborn weeds. With this efficient design, you can quickly and effectively maintain your garden, achieving a clean and tidy finish every time.
Expandable Power with Worx PowerShare - The WG183E cordless line trimmer is part of the Worx PowerShare battery system. This means you can share any Worx PowerShare 18 V (20 V MAX) batteries between your Worx tools, expanding your power and efficiency. This system not only saves you money by reducing the need for multiple batteries and chargers, but also increases convenience and flexibility in your garden maintenance tasks.
POWERFUL, LIGHTWEIGHT AND WELL BALANCED GRASS TRIMMER - with adjustable front handle and a handy telescopic shaft for extra reach - ideal for safely trimming long grass where your lawnmower cannot reach or edging borders with precision
PERFECT FOR TRIMMING OR EDGING - the cutting head rotates 90° with a simple press of a button, so you can go from trimming grass to defining lawn edges quickly and easily
ADJUSTABLE HANDLE AND BUILT IN PLANT GUARD - allows you to protect the bark at the base of trees by placing it against the trunk while you cut and to trim grass at the edge of a bed without damaging flowers and shrubs
USE WITH ANY GREENWORKS 40V 2Ah or 4Ah BATTERY - this is a special 'tool only' package (with accessories) that comes without a battery, so if you already own a Greenworks 40V tool you can use the same battery to save space, cut costs and reduce waste
3 YEAR GUARANTEE – by Greenworks, a world leader in electric tools and battery technology, with a global reputation for smart design, high performance and outstanding customer service
STRONG, POWERFUL AND WELL BALANCED BRUSH CUTTER - 40V of power and a brushless motor give unmatched power and run times, supplied with a harness and adjustable D-grip handle for extra comfort and control
EASILY SWITCH BETWEEEN GRASS TRIMMER AND BLADE - dual line strimmer with a diameter of 2mm powers through the toughest of long grass and you can change the line head to a blade in seconds to cut through tough weeds
BUMP FEED FOR QUICK LINE RENEWAL - ideal for larger gardens where more line is needed, simply tap the cutting head against the ground to extend the line while using the garden trimmer
USE WITH ANY GREENWORKS 40V 2Ah or 4Ah BATTERY - this is a special 'tool only' package (with accessories) that comes without a battery, so if you already own a Greenworks 24V tool you can use the same battery to save space, cut costs and reduce waste
3 YEAR GUARANTEE – by Greenworks, a world leader in electric tools and battery technology, with a global reputation for smart design, high performance and outstanding customer service
[CORDLESS] Operated with a 2Ah battery, this wireless grass strimmer allows you to move freely around your garden with no wire obstructions. Avoid tripping hazards with Vitinni strimmers.
[BATTERY OPERATED] The 2Ah Lithium-ion battery cell is double the energy density of a standard nickel-cadmium. Interchangeable battery can conveniently be transferred into other power tools.
[QUICK CHARGER] Charge your cordless strimmer battery with our quick charger within 60 minutes, leaving you free to roam your garden for up to 30 minutes without any restrictions.
[PRECISE HANDLING] Exact and precise trimming and edging for delicate or elusive areas of your garden. Automatic single thread feeder strimmer blades for instant results. Lightweight ergonomic handle.
[POWERFUL MOTOR] The powerful 40V, 250W motor output enables high performance. The lawn edger spool reaches a speed of 9000 RPM. 1.6mm thick blades give your garden a sharp finish.
Complete Lawn Maintenance Kit - This combo kit includes the WG779E 34cm 40V Cordless Lawnmower and the WG157E.9 20V Cordless Grass Trimmer, along with 2 batteries and a dual port charger. Whether you need to mow your lawn, trim the edges, or reach difficult spots, this kit has you covered. Plus, the 2x2.0 Ah PowerShare batteries are interchangeable, offering convenience and reducing the need for multiple different batteries. Enhance your lawn maintenance with this comprehensive kit from Worx.
Environmentally Friendly and Cost-Efficient - The WORX WG779E Cordless lawnmower is not only powerful but also cost-efficient and kinder to the environment. With its advanced technology and power management, it reduces energy consumption, making it a more sustainable choice for lawn maintenance. The cordless design also means no more spending on fuel or dealing with cumbersome cords. The dual charger included in this combo kit ensures that your tools are always ready for action.
Advanced Technology - The WORX WG779E lawnmower features patented AUTO-IntelliCut technology that manages power for maximum efficiency. The electronically-controlled motor delivers torque as-needed, making this lawnmower powerful yet energy-efficient. Ideal for maintaining a beautiful lawn with ease
Compact and Powerful - Equipped with a powerful electronically-controlled motor that delivers the torque as needed, ensuring a clean cut every time. Furthermore, the lawnmower offers six different levels of cutting height adjustments, allowing you to customize the cut to suit your lawn and garden needs. The addition of the WG157E.9 grass trimmer in this combo kit makes it a comprehensive solution for all your lawn maintenance tasks.
Ease of Use and Versatility - The WORX WG157E.9 20V Cordless Grass Trimmer is the perfect companion to the WG779E lawnmower. It's ideal for trimming grass in hard-to-reach areas and maintaining neat edges around your garden. Plus, the cordless design gives you the freedom to move around without being restricted by a power cord. This combo kit is not just efficient but also user-friendly, making garden maintenance a breeze even for beginners.
【Grass Strimmer Cordless with 2 Batteries】This brush cutter is equipped with a upgraded 2000mAh lithium battery which can be used Use about 1 hour, effectively solving the problem of short battery life. Two batteries can be replaced that you don't need to wait to charge when you're gardening. Wireless makes you no longer need to drag cables on wet ground.
【6 Metal Blades & 10 Plastic Blades】This electric strimmer has 3 types of blades, cordless grass trimmer suitable for different scenarios. Two 6-inch metal circular blades can cut branches and hard bushes, four 6-inch metal blades can cut weed piles and thicker grass in complex terrain, and 10 plastic blades can be used to trim lawn tender grass or lawn edge. You can use it in gardens, villas, parks, pastures, courtyard lawns, weed piles, bushes, especially for home gardens.
【90° Cutting Head & Safety】The grass strimmer has 90° cutting head which is easy to deal with different angles of use. Anti-collision iron bars doesn't fear about damage when it touches hard stones or wall. Garden strimmer cordless has 150° protection cover that can effectively prevent grass splashing. To start the machine, you must first press the anti-mistouch switch and then press the start switch which can ensuring safety for accidentally use .
【ERGONOMIC DESIGN】The grass trimmers is equipped with an adjustable telescopic rod, which can be adjusted freely between 35.4-47.2 inches, and adjust the appropriate length according to different environments. The grass trimmer cordless is very light and easy to use, which greatly improves the efficiency and has an excellent sense of use. Powerful and lightweight lawn edger tool for men and women.
【Easy to Install & 2 Years Warranty】The electric garden lawn edger tool is easy to install. Accessories include 1 x Grass Trimmers, 2 x Lithium Battery, 1 x Quick Charger, 2 x 6" Metal Circular Saw Strimmer Blades, 10 x Plastic Strimmer Blades, 4 x 6" Straight Metal Strimmer Blades, 1 x Wrench kit, 1 x Gloves, 1 x Goggles, 1 x Handle, 1 x Grass guard, 1 x Anti-collision iron bar, 1 x Instruction. And we will also provide 2 YEAR WARRANTY, if you have any product questions, please contact us.
40V/2.5Ah Li-Ion battery-powered grass trimmer- battery and charger not included - compatible with LM G32 - 32cm cordless lawnmower
30cm cutting width
Plant guard to avoid shrubs, flowers and garden furniture
Wheels for extra support and easier edging
Multi-position head to reach the most difficult areas
Frequently Asked Questions (FAQ)
What is the best cordless string trimmer 40 volts? It depends on your needs, but the top 3 products are generally the most balanced options.
How do I maintain it properly? It varies by model. The best approach is to follow the manufacturer’s recommendations (yes, reading the manual is worth it).
Where to buy it with confidence? Amazon remains a solid choice: wide selection, easy returns, and tons of user reviews—hard to beat.
Do I need a big-name brand? Not necessarily. Lesser-known brands can be surprisingly good, with well-designed products that rival top names—at a lower cost. Don’t overlook them just because the name is unfamiliar.
What are the most common pitfalls? A super low price might be tempting but could signal major compromises (build quality, reliability, nonexistent support…). Also beware of product pages with no reviews or vague comments. Spend a few minutes reading real feedback—this is often where the most valuable info is.
How is our ranking built?
We don’t claim to have a magic formula. In reality, it’s a blend of data—ratings, sales volume, review frequency—and observation. We watch for recurring themes in reviews, compare search trends, and yes, sometimes rely on our gut feeling. A great product isn’t just numbers. Our ranking aims to balance all of that: data, common sense, and a lot of time spent checking.
We analyze scores, sales frequency, genuine reviews (not just stars), and current search trends. Each model is rated using a consistent set of criteria. While it’s not perfect, it helps us stay fair and consistent. And we update our lists often, because products evolve—and so do we.
Why trust Topelio?
Topelio is an independent website—we don’t sell these products and we’re not tied to any brand. What drives us is clarity and usefulness. We aim to produce practical, readable, honest content. Our rankings are based on public data, complemented by our own experience. No shady partnerships or biased recommendations—just a genuine effort to save you time, and maybe money too.
Thanks for taking the time to read this guide. Choosing a cordless string trimmer 40 volts might seem trivial, but it’s often more complicated than expected. Too many options, unclear product pages, and marketing promises that don’t help… That’s why we aimed to create a simple but solid comparison. With practical info, useful tips, and most importantly—a ranking based on reality. Take time to compare, read more reviews if needed, and choose based on your own priorities. What works for someone else might not be ideal for you. If this guide helped you, feel free to explore our other articles. We always try to add real value—without wasting your time. See you soon on Topelio.
