Best Lithium-Ion String Trimmers of 2025

Bryan Hicks Avatar
Bryan Hicks
Last Updated: Jan 8, 2025

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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

EGO Power+ 15-Inch Cordless String Trimmer Cover #TOP 1
EGO Power+ 15-Inch Cordless String Trimmer
ftb score rating icon 9.9
EGO Power+ ST1623T 16-Inch 56-Volt Cordless String Trimmer Cover #TOP 2
EGO Power+ ST1623T 16-Inch 56-Volt Cordless String Trimmer
ftb score rating icon 9.8
EGO STA1600 String Trimmer Attachment Cover #TOP 3
EGO STA1600 String Trimmer Attachment
ftb score rating icon 9.6

Top 10 Lithium-Ion String Trimmers

EGO Power+ 15-Inch Cordless String Trimmer

EGO Power+
ST1510T
Black
EGO Power+ 15-Inch Cordless String Trimmer Cover
EGO POWER+ ST1510T 15-Inch 56-Volt Lithium-Ion Cordless POWERLOAD String Trimmer with Aluminum Telescopic Shaft - Battery and Charger Not Included

The EGO Power+ ST1510T 15-Inch Cordless String Trimmer is perfect for those who want to trim their lawn with ease. It features POWERLOAD technology, which makes it easy to load your line and get started. It is compatible with all EGO 56V ARC Lithium batteries and has a high-efficiency brushless motor. The telescopic aluminum shaft is adjustable to fit your height, and it has a professional-grade dual line spiral-twist 0.095 in. line. You can choose from two speed settings and get up to 45 minutes of run time on a single charge.

What We Like
Easy to load the line and start trimming
Adjustable telescopic aluminum shaft for ultimate comfort
Compatible with all EGO 56V ARC Lithium batteries
Professional-grade dual line spiral-twist 0.095 in. line
High-efficiency brushless motor for maximum performance

EGO Power+ ST1623T 16-Inch 56-Volt Cordless String Trimmer

EGO Power+
ST1623T
Black
EGO Power+ ST1623T 16-Inch 56-Volt Cordless String Trimmer Cover
EGO Power+ ST1623T 16-Inch 56-Volt Lithium-Ion Cordless POWERLOAD™ with LINE IQ™ Telescopic Carbon Fiber Straight Shaft String Trimmer, 4.0Ah Battery and Charger Included

The EGO Power+ ST1623T 16-Inch Cordless String Trimmer features the world’s first LINE IQ technology, an auto-sensing system that monitors and feeds the length of the line for a continuous 16” cutting swath without the need for bumping. Its POWERLOAD technology automatically winds your trimmer line, making it easy to replace. With its carbon fiber shaft, it is the strongest string trimmer on the market, backed by a lifetime warranty. The telescopic design allows you to quickly adjust the shaft length for ease of use and comfort. It has a high-efficiency brushless motor, digital variable speed, and.095" professional cutting line, providing Power Beyond Belief without the noise, fuss, or fumes. The package includes a 56 Volt 4.0Ah battery and a fast charger, and it is compatible with all EGO tools. The trimmer comes with a 5-year tool warranty and a 3-year battery warranty.

What We Like
Powerful 56-volt lithium-ion battery
Adjustable and comfortable handles
Lightweight design
No rewinding string spool
Quiet operation
#TOP 3

EGO STA1600 String Trimmer Attachment

EGO Power+
STA1600
black
EGO STA1600 String Trimmer Attachment Cover
EGO STA1600 16-Inch Carbon Fiber String Trimmer Attachment with POWERLOAD™ for EGO 56-Volt Lithium-ion Multi-Head System

The EGO String Trimmer Attachment is designed to work seamlessly with EGO POWER+ Multi-Head system Power Heads. With a 16-inch cutting swath, it covers more ground efficiently. The POWERLOAD technology makes line feeding quick and hassle-free, letting you get back to work in seconds. The Rapid Reload feature allows for easy line loading, ensuring minimal downtime. Its lightweight carbon fiber shaft ensures durability and comes with a lifetime warranty, making it a reliable choice for trimming needs.

What We Like
POWERLOAD technology for quick line feeding
Rapid Reload feature for easy line loading
Lightweight carbon fiber shaft
#TOP 4

Dewalt DCST922BR 20V MAX String Trimmer

DCST922B-cr
Yellow/Black
14 in
Dewalt DCST922BR 20V MAX String Trimmer Cover
Dewalt DCST922BR 20V MAX Lithium-Ion Cordless 14 in. Folding String Trimmer (Tool Only) (Renewed)

The Dewalt 20V MAX Trimmer is designed for convenience and efficiency. Its folding hinge allows for compact storage, making it easy to tuck away in small spaces. When folded, the trimmer’s reduced length enhances portability, allowing you to transport it effortlessly. With a 14-inch cutting width, you can tackle larger areas quickly and efficiently. Plus, its robust construction ensures durability, even when faced with thick brush, so you can maintain your yard without worry.

What We Like
Compact storage design
Easy to transport
Wide cutting area
Durable construction

BLACK+DECKER Cordless String Trimmer

LST522
Multi
One Size
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
Easy to use
Quiet
Adjustable handle
Choice of two speeds

RYOBI One+ 18V Cordless Trimmer

P2030
Multicolor
RYOBI One+ 18V Cordless Trimmer Cover
Ryobi One+ 18-Volt Lithium-ion Cordless Electric String Trimmer and Edger

The RYOBI Cordless String Trimmer is designed for convenience and efficiency in lawn care. With its 18-volt lithium-ion battery, you can enjoy cordless operation, allowing you to move freely without being tethered to a power outlet. This model also functions as an edger, giving you the versatility to create clean lines along sidewalks and flower beds. Its lightweight design makes it easy to handle, reducing fatigue during extended use. Plus, it's available for purchase on Amazon, making it simple to order and receive right at your doorstep.

What We Like
Cordless convenience
Versatile edger function
Lightweight design
Easy online purchase
#TOP 7

RYOBI 40-Volt Attachment Capable String Trimmer

PD-27932
Multicolor
RYOBI 40-Volt Attachment Capable String Trimmer Cover
RYOBI 40-Volt Lithium-Ion Cordless Attachment Capable String Trimmer, 4.0 Ah Battery and Charger Inc

The RYOBI 40-Volt Lithium-Ion Cordless Attachment Capable String Trimmer is a powerful tool that provides gas-like power without the hassle of mixing oil and gas. It is attachment capable, accepting RYOBI expand-it attachments and other universal gas attachments to save time, money and space. The 40-Volt lithium-ion high capacity battery and 90-minutes charger included provide longer run time. The 13 in. to 15 in. adjustable cutting width and the reel-easy bump-feed string head offer faster reloads. The variable speed trigger provides cutting control. This trimmer is suitable for yards up to 1-Acre.

What We Like
Attachment capable, saving time, money and space.
Adjustable cutting width and reel-easy bump-feed string head for faster reloads.
Variable speed trigger for cutting control.
#TOP 8

RYOBI 40V Adjustable String Trimmer

RY40ST01B
Black
RYOBI 40V Adjustable String Trimmer Cover
RYOBI 40-Volt Lithium-Ion Cordless Expand-It Attachment Capable Adjustable 13-15"" String Trimmer, Tool Only; Battery and Charger Not Included, Black, RY40ST01B

The RYOBI 40V Trimmer is designed for efficiency and ease of use. With its adjustable cutting width, you can choose between a 13-inch or 15-inch swath, allowing you to optimize for performance or battery life based on your needs. The variable speed trigger gives you maximum control over cutting power, making it easier to tackle different types of vegetation. This tool comes with essential attachments and accessories, so you are ready to trim right out of the box. Plus, it delivers more power than traditional gas trimmers, offering a hassle-free experience without the need for gas or constant maintenance.

What We Like
Adjustable cutting width
Variable speed control
Powerful gas replacement
No maintenance required
#TOP 9

Makita XRU24Z Cordless String Trimmer

XRU24Z
Teal
Makita XRU24Z Cordless String Trimmer Cover
Makita XRU24Z 18V LXT® Lithium-Ion Cordless String Trimmer, Tool Only

The Makita Trimmer is a versatile tool that offers precision trimming and edging. With its 180º rotating head, it easily converts to an edger for added convenience. The telescoping shaft allows you to adjust the cutting position for optimal reach. Its 5-position pivoting head enables you to customize the cutting angle, perfect for trimming in tight spaces. Powered by a Makita-built motor delivering 7,800 RPM, this trimmer ensures faster cutting, making your gardening tasks efficient and effortless.

What We Like
Precision trimming
2-in-1 design
Telescoping shaft
#TOP 10

RYOBI 40V Cordless String Trimmer - Tool ONLY

Multicolor
RYOBI 40V Cordless String Trimmer - Tool ONLY Cover
RYOBI 40-Volt Lithium-Ion Cordless 12inch String Trimmer - Tool ONLY (Battery and Charger NOT Included), Multicolor

The RYOBI 40-Volt Lithium-Ion Cordless 12inch String Trimmer provides cordless convenience with exceptional run time, working with all RYOBI 40V Batteries. The variable speed trigger allows for optimal cutting control while the 11 in. to 13 in. adjustable cutting width provides longer run time or wider cutting path. The auto-feed string head makes it easy to use and quick to reload with 0.080 in. twisted line pre-installed, offering fade-free power.

What We Like
Longer run time than most gas trimmers
Accepts any of the RYOBI auto-feed spools for quick and easy reloads
Variable speed trigger provides ultimate cut control
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 10 quality products. We collected and analyzed 64,296 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 $126.34.

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 EGO Power+, DEWALT, BLACK+DECKER, RYOBI, Makita. The seller of top 1 product has received honest feedback from 884 consumers with an average rating of 4.8.

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.