The 6 Best Battery String Trimmers of 2026

The CRAFTSMAN V20 String Trimmer and Lawn Edger Kit, model CMCST901M1, is a compelling choice for homeowners seeking a versatile and powerful solution for yard maintenance. This 2-in-1 tool combines a string trimmer and a lawn edger, allowing you to tackle different tasks with a single, convenient device. Powered by the CRAFTSMAN V20 battery system, it offers the freedom of cordless operation, eliminating the need for gas or cumbersome extension cords.

One of the standout features is its performance. With a 13-inch cutting swath and 52% more power compared to older models, it's designed to slice through thick grass and weeds efficiently. The inclusion of two speed settings allows users to prioritize either maximum power for challenging areas or extended runtime for lighter trimming. The Turn-To-Edge functionality makes transitioning from trimming to edging seamless, providing clean and crisp lawn borders.

While the advertised runtime is up to 63 minutes, user reviews indicate that actual battery life can vary, often being shorter when operating at higher speeds or in dense growth. However, many users appreciate the overall power and the convenience of the V20 battery system, especially if they already own other CRAFTSMAN V20 tools. The adjustable handle also contributes to user comfort, making it suitable for various heights and reducing fatigue during longer tasks.

Overall, the CRAFTSMAN V20 String Trimmer and Lawn Edger Kit offers excellent value for its price, especially considering it comes with a 4.0Ah battery and charger. It's a robust and user-friendly tool that effectively handles typical yard trimming and edging needs, making it an ideal choice for small to medium-sized properties. For those needing extended use, an additional battery might be a worthwhile investment.

The Bosch GRT18V-40N 18V Brushless String Trimmer is a robust and versatile tool designed for both professional landscapers and dedicated homeowners. As a bare tool, it integrates seamlessly into Bosch's 18V battery ecosystem, offering a powerful, cordless solution for maintaining pristine lawns and tackling challenging overgrowth.

One of its most compelling features is the Bosch-Exclusive Anti-Tangle System, which significantly boosts productivity by preventing frustrating interruptions caused by tangled grass and weeds. Coupled with a high-efficiency brushless motor that delivers up to 5,300 RPMs, this trimmer ensures continuous, powerful cutting even under heavy loads. The 16-inch cutting swath allows for quick coverage of larger areas, making yard work more efficient. Precision is also a highlight, thanks to the variable-speed trigger and a dual-function hand grip with a toolless adjustable D-handle, enabling effortless transitions between trimming and edging.

The GRT18V-40N is built for durability, featuring aluminum motor housing and a robust spool with an aluminum eyelet, designed to withstand the rigors of daily use. The Pro-Tap spool with EasyWind simplifies line advancement, automatically adjusting length and allowing for quick reloading. While the battery and charger are sold separately, this allows users to leverage existing Bosch 18V batteries, and the tool is part of the AMPShare System for multi-brand battery compatibility. The five-year limited warranty further solidifies Bosch's commitment to quality and user confidence.

Potential drawbacks include the separate purchase of the battery and charger, which might be an additional cost for new Bosch users. Also, specific runtime figures are not provided, so users will need to manage their battery usage based on experience with their 18V batteries. Overall, the Bosch GRT18V-40N stands out as an excellent choice for those seeking a powerful, durable, and user-friendly cordless string trimmer capable of handling diverse landscaping tasks with efficiency and precision.

The BLACK+DECKER LST136 40V MAX 13-inch String Trimmer and Edger is a robust cordless solution designed to simplify yard maintenance for homeowners. Powered by a 40V MAX* lithium-ion battery and featuring POWERDRIVE Transmission, this tool delivers impressive power to cut through tough weeds and overgrown areas efficiently. Its 2-in-1 design allows for quick conversion from a string trimmer to a lawn edger, providing versatility for various landscaping tasks.

One of the standout features is the Automatic Feed Spool (AFS), which ensures a continuous supply of trimmer line without the need for manual bumping, enhancing convenience and maintaining workflow. The PowerCommand Dial is another thoughtful addition, enabling users to switch between maximum power for challenging growth and maximum runtime for longer trimming sessions, adapting to specific needs. With an included fast charger, the battery is ready for action in two hours or less, minimizing downtime.

While many users praise its power and ease of use, especially when compared to older 18V models or gas trimmers, some have noted occasional battery issues. However, customer service has been responsive in addressing these concerns. Its lightweight design and adjustable height, coupled with a soft-grip handle, contribute to comfortable operation, making it accessible even for those who find heavier gas models cumbersome. This trimmer is an excellent choice for suburban lawns, offering a blend of power, convenience, and eco-friendliness.

The LST136 operates at speeds up to 8500 RPM, ensuring clean and efficient cuts. It comes as a complete kit, including the trimmer/edger tool, a 40V MAX* 2.0AH lithium-ion battery, a fast charger, an AF 100 spool, guard, and an auxiliary handle. Backed by a 3-year limited warranty, it offers peace of mind for your investment. For those seeking a dependable, powerful, and easy-to-manage cordless trimmer and edger, the BLACK+DECKER LST136 is a highly recommended option.

The EGO POWER+ 16" Cordless Weed Trimmer with Battery and Charger (model ST1623T) is a battery-powered string trimmer designed for homeowners who want professional-grade performance without the hassle of gas or cords. It features EGO's patented LINE IQ technology, which automatically senses and feeds the trimmer line to maintain a consistent 16-inch cutting swath without bumping the head. The trimmer also includes POWERLOAD technology for quick and easy line reloading.

This trimmer is ideal for medium-sized yards and regular lawn maintenance. It delivers up to 60 minutes of runtime on a single charge with the included 4.0Ah battery, and the battery recharges in just 55 minutes with the included charger. The brushless motor provides efficient power with low vibration, and the digital variable speed selector lets you adjust the speed to match the task.

The telescopic carbon fiber shaft is a standout feature, allowing you to adjust the length for comfortable use regardless of your height. The shaft is also stronger than standard trimmer shafts, adding to the tool's durability. The trimmer works with all EGO 56V ARC Lithium batteries, so it integrates seamlessly into the EGO platform.

While the ST1623T offers impressive features and build quality, it comes with only one battery, which may be limiting for larger properties. Additionally, it lacks a variable speed trigger, relying instead on a selector switch. The price is higher than many cordless trimmers, but the combination of LINE IQ, POWERLOAD, and a carbon fiber shaft justifies the investment for those seeking a premium trimming experience.

Overall, the EGO POWER+ ST1623T is an excellent choice for homeowners who value convenience and performance. Its innovative line feeding and reloading systems save time, and the lightweight design reduces fatigue during extended use. If you are looking for a reliable, low-maintenance string trimmer for your yard, this model is well worth considering.

The WORX WG163 20V 12" 2-in-1 Cordless String Trimmer & Electric Lawn Edger is a practical solution for homeowners seeking to maintain their lawns with ease. This innovative tool seamlessly transitions from a powerful string trimmer to a precise in-line edger in mere seconds, eliminating the need for separate devices and saving valuable storage space and money.

Designed with user convenience in mind, the WG163 boasts a lightweight build at just 5.5 lbs, significantly reducing fatigue during extended use. The Command Feed spool system allows for instant line advancement with a simple push of a button, ensuring uninterrupted work. For those with uneven terrain or hard-to-reach spots, the 90° tilting head provides excellent maneuverability. Additionally, rubberized wheels offer stable guidance for achieving clean, professional-looking edges, while an adjustable spacer guard protects delicate plants and landscaping from accidental damage.

A standout feature of this WORX tool is its inclusion of two powerful 20V Power Share maxLithium batteries. These batteries are not only lightweight but are also interchangeable with any other tool within the extensive WORX Power Share platform, offering exceptional versatility and value. While the 12-inch cutting width is suitable for most residential yards, those with exceptionally large properties might find it takes a bit longer to complete their tasks. Overall, the WORX WG163 is an excellent choice for anyone looking for an efficient, lightweight, and versatile lawn care tool.

The BLACK+DECKER LST300 20V MAX String Trimmer and Edger is a versatile, cordless 2-in-1 tool designed for homeowners who need a reliable solution for trimming grass and edging along sidewalks and driveways. With its PowerDrive transmission, it delivers 6200 RPM for efficient cutting through overgrowth and heavy weeds, making it a solid choice for small to medium-sized yards.

One of its standout features is the Automatic Feed Spool (AFS), which automatically feeds trimmer line as needed without the hassle of bumping the head. This, combined with its lightweight design at just 5.7 pounds and adjustable handle and height positions, ensures comfortable and controlled operation. The 2-in-1 design allows quick conversion from trimmer to edger in seconds, adding to its convenience.

The included 20V MAX lithium-ion battery offers 33% more runtime than previous models, and the charger is wall-mountable for easy storage. The steel deck adds durability, while the quiet operation and lack of gas or oil mess make it an attractive alternative to gas-powered trimmers.

However, the battery life may be limited for larger properties, and it may struggle with very thick brush compared to more powerful gas models. Some users have reported that the trimmer line can break easily on dense weeds.

Overall, the BLACK+DECKER LST300 is an excellent value for homeowners seeking a lightweight, easy-to-use, and quiet cordless trimmer and edger for routine lawn maintenance. Its automatic feed and 2-in-1 versatility make it a top pick in its class.