Best Lithium-Ion String Trimmers of 2026

Bryan Hicks Avatar
Bryan Hicks
Last Updated: Jan 11, 2026

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Lithium-Ion string trimmers are a popular choice for those looking for a lightweight and efficient tool to keep their lawns and gardens looking neat and tidy. These trimmers are powered by rechargeable lithium-ion batteries, which provide a longer run time and quicker charge time than traditional Ni-Cd or Ni-MH batteries. They also offer a quieter and more environmentally-friendly alternative to gas-powered trimmers. With adjustable cutting widths and ergonomic designs, lithium-ion string trimmers are a versatile and convenient choice for any homeowner or landscaper.

At a Glance: Our Top Picks

BLACK+DECKER Cordless String Trimmer Cover #TOP 1
BLACK+DECKER Cordless String Trimmer
ftb score rating icon 9.9
BLACK+DECKER Cordless String Trimmer Cover #TOP 2
BLACK+DECKER Cordless String Trimmer
ftb score rating icon 9.8
BLACK+DECKER Cordless Combo Kit Cover #TOP 3
BLACK+DECKER Cordless Combo Kit
ftb score rating icon 9.6

Top 9 Lithium-Ion String Trimmers

BLACK+DECKER Cordless String Trimmer

LST300
Orange, Black
One Size
BLACK+DECKER Cordless String Trimmer Cover
BLACK+DECKER 20V MAX String Trimmer and Edger 2 in 1, Cordless Weed Wacker with Auto Spool Feed, Battery and Charger Included, 12 Inch Steel Blade, Reduced Vibration (LST300)

The BLACK+DECKER Cordless String Trimmer is a versatile 2-in-1 tool that can easily convert between a trimmer and a wheeled edger. With an automatic spool feed technology, you don't have to stop and bump to feed more line. The Powerdrive transmission delivers more power from the motor to the cutting string, allowing you to get the job done faster. The lightweight design and adjustable height handles make it easy to handle. Moreover, it comes with a 20v Lithium battery pack that provides 33% more run time and can be easily swapped with other BLACK+DECKER tools.

The BLACK+DECKER Cordless String Trimmer is perfect for those who want a lightweight and easy-to-use tool for their medium-sized lawns and gardens. It's great for trimming borders, sidewalks, and flower beds, as well as for overgrowth after mowing. The automatic spool feed technology and the pivoting handle make it easy to use, while the Powerdrive transmission delivers more power to the cutting string, allowing you to get the job done faster. Although the battery life may not be enough for large yards, it's still a great value for low to medium-duty use.

What We Like
Lightweight and easy to use
Battery compatibility with other tools
Effective for average-sized yards
Simple spool replacement
Adjustable shaft and handle

BLACK+DECKER Cordless String Trimmer

LST522
Multi
BLACK+DECKER Cordless String Trimmer Cover
BLACK+DECKER 20V MAX Cordless String Trimmer and Edger with Spool, Battery and Charger Included, 2 Speed, 12 Inch (LST522)

Experience hassle-free trimming with the BLACK+DECKER Cordless String Trimmer. This powerful trimmer features an Automatic Feed Spool that feeds the edger/trimmer line as needed without bumping, saving you time and effort. With the LBXR2520 battery, you get 66% more battery capacity for longer runtime compared to LBXR20. Choose between two-speed controls to boost power or extend runtime, while the PowerDrive Transmission increases torque for more cutting power. Easily convert from trimmer to wheeled edger, and adjust the height and handle with premium soft grip for improved comfort and control. Whether you're a professional landscaper or a DIY enthusiast, this cordless string trimmer is perfect for all your lawn maintenance needs.

What We Like
Lightweight and easy to use
Long-lasting battery life
Self-feeding string
Good for entry-level users
Convenient battery operation
#TOP 3

BLACK+DECKER Cordless Combo Kit

LCC222
Black
One Size
BLACK+DECKER Cordless Combo Kit Cover
BLACK+DECKER 20V MAX* POWERCONNECT Cordless String Trimmer Lawn Edger and Leaf Blower Combo Kit, Includes 2 Batteries and Charger, Weed Wacker Hard Surface Sweeper 10 in. (LCC222)

Get your gardening job done with ease using BLACK+DECKER Cordless Combo Kit. This versatile tool easily transforms from a cordless string trimmer to an edger with a rotation of 180 degrees, providing you with the flexibility to work on different areas of your garden. The adjustable height and soft-grip handle ensure comfortable and customizable control during extended use. You don't have to worry about bumping the trimmer line as the AFS automatic feed spool continuously feeds it. The sweeper is perfect for clearing driveways, sidewalks, decks, and garages of grass clippings, leaves, and other debris. With a lightweight design and quiet operation, this combo kit is easy to use and won't disturb your neighbors. You'll also have backup power with two 20V MAX* POWERCONNECT batteries, ensuring a consistent charge.

What We Like
Lightweight and easy to use
Good battery life
Quiet operation
Effective for small yards
Value for money
#TOP 4

JAGROM 20V Cordless 2-in-1 String Trimmer

Green
JAGROM 20V Cordless 2-in-1 String Trimmer Cover
JAGROM Electric String Trimmer Cordless with 2x2.0Ah Battery, 20V Battery Powered 12-inch Lawn Mover & Edger Lawn Tool with Charger, Powered Grass Trimmer with 8pcs Spool Line for Yard, Garden, Green

The JAGROM Cordless String Trimmer is a versatile garden tool that easily switches between trimming and edging by adjusting the head or shaft angle, allowing you to handle different yard tasks with one device. It offers powerful cutting with a 12-inch width and a fast 9500RPM speed, making your garden maintenance quick and effective. The trimmer runs on two 2.0Ah lithium-ion batteries, giving you up to 40 minutes of continuous work without interruption. Plus, it’s designed for convenience with a foldable shaft and adjustable handles, so you can store it easily and customize the cutting angle to fit tight spaces or large areas comfortably.

What We Like
2-in-1 trimmer and edger
Powerful 9500RPM motor
Long 40-minute battery life
Foldable and adjustable shaft
Ergonomic, easy operation
#TOP 5

ALDIPRO 20V 12" Cordless Weed Wacker

Gray & Green
ALDIPRO 20V 12" Cordless Weed Wacker Cover
Weed Wacker Cordless 20V 12'' Electric Weed Eater with Auto Line Feed, 2.0Ah Battery and Fast Charger, 6 x Replacement Line, Battery Powered String Trimmer for Lawn Care, GrassTrimmer (AD-ST-001.1)

The ALDIPRO Cordless Weed Wacker is a versatile tool that combines trimming, edging, and mowing in one lightweight device, making your lawn care easier and more efficient. Its automatic line feed feature saves you time by releasing fresh cutting line without stopping your work, keeping your trimming smooth. With a powerful 2.0Ah lithium-ion battery, you get over 35 minutes of continuous use, so you can tackle your yard without frequent recharging. Plus, the fast charger quickly powers up the battery in about an hour, helping you get back to your outdoor tasks faster.

What We Like
3-in-1 multifunction
Automatic line feed
35+ minutes runtime
Fast charging
#TOP 6

BLACK+DECKER 20V MAX String Trimmer/Edger Kit

LST201
Black and orange
BLACK+DECKER 20V MAX String Trimmer/Edger Kit Cover
BLACK+DECKER 20V MAX String Trimmer Edger Cordless, 10-Inch Electric Weed Wacker with Automatic Feed Spool Kit (LST201)

The BLACK+DECKER 20V MAX String Trimmer/Edger Kit is a versatile tool that can help you with endless tasks. It can convert from trimmer to edger, has an automatic feed spool that feeds trimmer line, and has adjustable height and handle for ideal user comfort. The 20V MAX Lithium Ion 1.5Ah battery holds its charge for up to 18 months. The kit includes a trimmer, a lithium battery, a charger, a guard, and an AFS spool.

What We Like
Versatile tool for endless tasks
Automatic feed spool saves time and hassle
Adjustable height and handle for ideal user comfort
#TOP 7

BLACK+DECKER 40V Trimmer

LST140C
Orange
One Size
BLACK+DECKER 40V Trimmer Cover
Black+Decker 40V MAX String Trimmer and Edger Kit, Cordless, 13 inch, 2-in-1, Battery and Charger Included (LST140C)

Experience clean and fast cuts with the BLACK+DECKER 40V Trimmer. Its high-performance 40V max Lithium ion Battery with state of charge indicator lets you know when it's time to recharge. The Power drive high-torque transmission gives you cutting power at the string, making trimming effortless. The Automatic feed Spool - afs feeds trimmer line as needed with no bumping, allowing you to work uninterrupted. In addition, it easily converts from trimmer to edger in seconds, giving you more versatility in your lawn care routine.

What We Like
Improved trimming experience
Long battery life
No tap self-feed string system

SUNCHERS 12-inch 20V Cordless Trimmer

sustmainv5
Grass Green
SUNCHERS 12-inch 20V Cordless Trimmer Cover
SUNCHERS 12-inch 20V Cordless String Trimmer with Charger, 2 X 2.0Ah Battery Powered Grass Mover with Auto Line Feed, 2 in 1 Lawn Edger with 8 Pcs Grass Cutter Spool Line and 2 Spool Cap, Green

The SUNCHERS Cordless Trimmer is a versatile tool that combines a trimmer and edger in one design. You can easily switch between trimming and edging by simply rotating the head, making it perfect for maintaining your lawn and garden. With two powerful 2.0Ah batteries, you can enjoy over 30 minutes of uninterrupted work, ensuring you complete your yard tasks efficiently. The adjustable cutting head and auxiliary handle allow you to customize the angle for hard-to-reach areas, while the automatic line feed ensures you always have the right amount of cutting line for a clean finish.

What We Like
Lightweight and easy to maneuver
Two batteries included
Good value for the price
Easy assembly
Works well for light-duty tasks
#TOP 9

JAGROM 20V Cordless String Trimmer

mmstja
Grass Green
JAGROM 20V Cordless String Trimmer Cover
JAGROM 12-inch 20V Cordless String Trimmer with Charger, 2 X 2.0Ah Battery Powered with Auto Line Feed, Lawn Edger with 8 Pcs Grass Cutter Spool Line and 2 Spool Cap

JAGROM Cordless Trimmer is a versatile 2-in-1 tool that can be easily converted from a trimmer to an edger with a wheel. With two powerful batteries and a fast charger, you get 60 minutes of uninterrupted trimming. The adjustable cutting head and auxiliary handle provide ergonomic comfort, making it easy to reach difficult spaces. The automatic line feed ensures you never run out of cutting rope, while the protective cover keeps you safe during use. Easy assembly and a durable design make it a convenient and effective tool for all your lawn care needs.

What We Like
Lightweight and easy to handle
Fast battery charging
Includes extra spools of line
Adjustable head and handle
Good for small yards
Buying Guide Image

Selecting the Right Lithium-Ion String Trimmers

Introduction to Lithium ION String Trimmers

Lithium ION string trimmers are a type of power tool that is commonly used for cutting grass and weeds in gardens and yards. These trimmers are known for their lightweight and cordless design, which makes them easy to maneuver and use in a variety of different situations. In this article, we will discuss some important factors to consider when choosing a lithium ION string trimmer.

Battery Life and Power

One of the most important factors to consider when choosing a lithium ION string trimmer is the battery life and power. Lithium ION batteries are known for their high energy density and long-lasting charge, but not all trimmers are created equal in this regard. Some trimmers may have a longer battery life and more powerful motor, which can make them more effective for larger yards and tougher weeds. On the other hand, trimmers with shorter battery life and less power may be more suitable for smaller yards or lighter weeds.

Cutting Width and Line Size

Another important factor to consider when choosing a lithium ION string trimmer is the cutting width and line size. The cutting width refers to the width of the area that the trimmer can cut with each pass, while the line size refers to the diameter of the string that is used to cut the grass and weeds. Trimmers with a larger cutting width and line size can cover more ground in less time, but they may also be more difficult to maneuver in tight spaces or around obstacles. On the other hand, trimmers with a smaller cutting width and line size may be more precise and easier to control, but they may not be as efficient for large areas.

Adjustable Handle and Shaft

Another important factor to consider when choosing a lithium ION string trimmer is the adjustability of the handle and shaft. Most trimmers have a handle and shaft that can be adjusted to different angles and lengths, which can make them more comfortable and ergonomic to use. This is especially important for users who have different body types or who may be using the trimmer for long periods of time. Trimmers with adjustable handles and shafts can also be more versatile, as they can be used in a variety of different positions and for a wide range of tasks.

Weight and Balance

Finally, the weight and balance of the trimmer is also an important factor to consider. Lithium ION string trimmers are known for their lightweight design, which makes them easy to maneuver and use for extended periods of time. However, some trimmers may be too heavy or unbalanced, which can make them difficult to control and increase the risk of fatigue or injury. It is important to choose a trimmer that feels comfortable and balanced in your hands, and to adjust the handle and shaft as needed to achieve the best possible ergonomic position.

Conclusion

In conclusion, choosing the right lithium ION string trimmer requires considering a number of different factors, including battery life and power, cutting width and line size, adjustable handle and shaft, and weight and balance. By taking the time to consider these factors, you can choose a trimmer that is well-suited to your needs and preferences, and that will help you maintain a beautiful and healthy lawn or garden.

Frequently Asked Questions (FAQs)

1. What is the best cordless string trimmer on the market?

Top 10 Battery-Powered String Trimmers — Reviews. Best Overall: EGO Power+ ST1502.Best Performance: Makita XRU15.Best Budget Pick: Black+Decker 20V MAX. ... Black+Decker 40V MAX.Worx WG163 GT.Greenworks 40V 14 Inch Brushless String Trimmer.Craftsman V20 String Trimmer.Greenworks Pro 80V String Trimmer + Blower.

2. How long do battery-powered string trimmers last?

They typically last between 30 and 60 minutes of continuous use, and the batteries will take anywhere from 30 minutes to 2 hours to charge up (depending on if you have a fast charger or not).

3. Are brushless trimmers better?

In summary, brushless motors are better than brushed units. Users can take advantage of reduced maintenance, improved efficiency, reduced heat and noise. The brushless motors are synchronous units with one or more permanent magnets. Power tools with a brushless motor are now considered high-end products.

Editor's Notes

During our lithium-ion string trimmer research, we found 24 lithium-ion string trimmer products and shortlisted 9 quality products. We collected and analyzed 186,395 customer reviews through our big data system to write the lithium-ion string trimmers list. We found that most customers choose lithium-ion string trimmers with an average price of $98.33.

The lithium-ion string trimmers are available for purchase. We have researched hundreds of brands and picked the top brands of lithium-ion string trimmers, including BLACK+DECKER, JAGROM, ALDIPRO, sunchers. The seller of top 1 product has received honest feedback from 384 consumers with an average rating of 4.7.

Written by
Bryan Hicks Avatar

Bryan Hicks is a professional gardener and a writer who lives in North Texas with his family and his dog. Bryan has spent more than half of his life surrounded by garden products. He has extensive experience in garden makeovers and maintenance and lawn care. His areas of expertise include outdoor decoration, gardening and garden design.