BLACK+DECKER 20V MAX String Trimmer and Edger
4.4Editor score
Automatic Feed Spool
Quiet and easy start
Adjustable handle and height
10 Best Lightweight Battery Powered String Trimmer (October 2026) Expert Guide
Finding the right tool for yard maintenance can be challenging when you need something easy to handle yet powerful enough for the job. A lightweight battery powered string trimmer offers the perfect balance of portability and performance for modern homeowners.
We evaluated ten top-rated models based on weight, battery life, cutting width, and user feedback to ensure you get a reliable tool. Each product was analyzed for its specific strengths in handling different lawn conditions and user needs.
Every pick in this list highlights key features like automatic line feed, adjustable handles, and dual battery options to help you decide quickly. Please note that product availability and pricing may change over time so check current listings before purchasing.
Top 3 Picks for Best Lightweight Battery Powered String Trimmer
WORX 20V 12" 2-in-1 Cordless String Trimmer & Electric Lawn Edger
4.3Editor score
2-in-1 trimmer and edger
Instant line feed system
Compatible Power Share batteries
EGO Power+ 15" Cordless Weed Trimmer with Battery and Charger
4.4Editor score
PowerLoad line technology
Brushless high efficiency motor
Telescopic aluminum shaft
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Top 10 Best Lightweight Battery Powered String Trimmer in 2026 Compared
The following table provides a side-by-side comparison of all ten selected products highlighting their key specifications and core features to help you make an informed decision quickly.
ProductsSpecificationsEditor scorePrice
Editor's Choice
WORX 20V 12" 2-in-1 Cordless String Trimmer & Electric Lawn Edger
12 inch cutting diameter
7600 rpm no load speed
5.5 lbs machine weight
20V Power Share battery
4.3Editor score
Editor's Choice
BLACK+DECKER 20V MAX String Trimmer and Edger 2 in 1
12 inch steel deck
6200 RPM transmission
Automatic Feed Spool
2.0 Amp hour battery
4.4Editor score
Best Premium
21V Electric Cordless Weed Wacker Battery Powered Weed Eater String Trimmer
9500 RPM motor
12 inch cutting swath
Two 2000mAh batteries
5.27 lbs total weight
4.6Editor score
EGO Power+ 15" Cordless Weed Trimmer with Battery and Charger
15 inch cutting swath
Up to 45 minutes runtime
Variable speed with 2 settings
Brushless high efficiency motor
4.4Editor score
Electric Weed Wacker Eater Cordless Battery Powered String Trimmer Whacker
9000 RPM high speed
12 inch cutting width
Dual 2.0Ah batteries
Impact resistant goggles
4.4Editor score
Weed Wacker Eater Electric String Trimmer Battery Powered Lawn Trimmer
12 inch cutting width
9000 RPM cutting head
Dual lithium batteries
Detachable shaft design
4.4Editor score
20V Cordless Weed Wacker Battery Powered Weed Eater with 2 Batteries
3.5 lbs ultra lightweight
12 inch cutting swath
Auto feed system
Below 75 dB noise
4.1Editor score
Greenworks 40V 12 in Cordless String Trimmer
12 inch dual line
Auto feed line system
Variable speed trigger
3 year warranty
4.3Editor score
Battery Powered Weed Wacker Cordless Lightweight for Seniors & Small Lawns
9000 RPM motor
Dual 2.0Ah batteries
12 inch cutting width
5.27 lbs total weight
4.4Editor score
CRAFTSMAN V20 Weed Wacker Cordless String Trimmer and Edger
13 inch cutting swath
Automatic line advance
2 speed settings
Ergonomic telescoping pole
4.4Editor score
1. WORX 20V – Best Overall Lightweight Battery Powered String Trimmer
WORX 20V 12" 2-in-1 Cordless String Trimmer & Electric Lawn Edger
7600 rpm no load
12 inch cut
5.5 lbs weight
20V batteries included
The WORX 20V WG163 stands out as a versatile solution for homeowners who need both trimming and edging capabilities. With a rating of 4.3 stars it delivers solid performance for residential lawn care tasks.
Pros
- Converts to edger in seconds
- Rubberized wheels for straight lines
- Compatible with many tools
- Adjustable spacer guard
- Instant line feed system
Cons
- Heavier than some rivals
- No adjustable shaft length
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Its ability to switch between string trimmer and edger mode in just seconds makes it highly adaptable for different yard zones. The 12 inch cutting diameter ensures efficient coverage while the 5.5 pound weight remains manageable for most users.
While the machine is slightly heavier than some ultra lightweight options the added durability and dual function justify the extra mass. The rubberized wheels on the edger side help guide the tool for cleaner edge lines.
This trimmer is ideal for users who want a single tool to handle multiple tasks without switching gear. Its compatibility with the WORX Power Share family allows battery sharing with other outdoor equipment for cost efficiency.
Versatile Two in One Functionality
The conversion from trimmer to edger is seamless allowing you to tackle different lawn maintenance tasks without needing separate tools for each job.
Smart Battery Integration
Included batteries are part of a broader ecosystem meaning you can use them on other WORX tools to maximize value and reduce spare battery costs.
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2. BLACK+DECKER LST300 – Best Budget Lightweight Battery Powered String Trimmer
BLACK+DECKER 20V MAX String Trimmer and Edger 2 in 1
6200 RPM power drive
12 inch steel deck
2.0 Amp hour battery
Reduced vibration design
The BLACK+DECKER LST300 offers excellent value for budget conscious buyers seeking a reliable cordless trimmer. Its 4.4 star rating reflects consistent performance and user satisfaction across various lawn environments.
Pros
- Affordable entry price point
- Automatic Feed Spool
- Quiet operation without gas
- Wall mountable charging base
- 2 Year Limited Warranty
Cons
- Shorter battery runtime than rivals
- Steel deck may rust over time
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Key features include the Automatic Feed Spool system that eliminates the need to bump the trimmer head to advance line. The 12 inch steel deck provides stability and consistent cutting height during edging tasks.
While it may not offer the longest runtime on a single charge the efficient power drive transmission ensures effective cutting for standard yard maintenance. The quiet operation is a major plus for residential neighborhoods.
This model is perfect for small to medium lawns where cost and simplicity are priorities. The included charger and battery make it ready to use right out of the box for immediate lawn care needs.
Convenient Auto Feed Mechanism
The AFS system feeds line automatically when needed allowing you to focus on trimming rather than stopping to adjust the spool manually.
Comfortable Operation
Reduced vibration and an adjustable handle help minimize fatigue during longer trimming sessions making it easier for users to complete yard work comfortably.
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3. 21V Cordless Weed Wacker – Lightweight Battery Powered String Trimmer for Daily Use
21V Electric Cordless Weed Wacker Battery Powered Weed Eater String Trimmer
9500 RPM motor speed
12 inch cutting swath
Two 2000mAh batteries
5.27 lbs total weight
This 21V Electric Cordless Weed Wacker delivers impressive performance with a 9500 RPM motor and a lightweight 5.27 pound design. It achieves a high 4.6 star rating due to its efficient battery management and ease of use.
Pros
- Fast charging capability
- Adjustable head angle
- 10 trimmer lines included
- Eco friendly materials
- 180 degrees adjustable handle
Cons
- Less known brand name
- Battery life varies by load
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The 2 in 1 functionality allows easy switching between trimming and edging by rotating the head 90 degrees. This adjustability helps users tackle corners and slopes without straining their backs or arms.
Dual batteries provide extended runtime reducing downtime during larger lawn projects. The automatic line feed system ensures continuous operation without manual adjustments which enhances overall productivity.
Best suited for users seeking a lightweight option with strong cutting power this trimmer excels in routine garden care. Its compact design saves space in storage areas while maintaining professional quality results.
Extended Runtime with Dual Batteries
Included dual batteries and fast charger allow you to swap packs quickly ensuring you can finish your lawn tasks without waiting for a full recharge.
Adjustable Ergonomics
The auxiliary handle can be adjusted 180 degrees to accommodate different heights and trimming angles improving comfort and control for various users.
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4. EGO Power+ ST1511T – Best Premium Lightweight Battery Powered String Trimmer
EGO Power+ 15" Cordless Weed Trimmer with Battery and Charger
15 inch cutting swath
0.095 inch cutting line
Up to 45 minutes runtime
Brushless high efficiency motor
The EGO Power+ ST1511T is a premium choice for users demanding professional grade performance in a cordless package. Its 4.4 star rating confirms its reliability and high quality construction over extended use.
Pros
- PowerLoad Technology
- Telescopic aluminum shaft
- Fast charging 50 minutes
- 5 year tool warranty
- Variable speed settings
Cons
- Higher initial cost
- Heavy 56V battery system
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The patented PowerLoad Technology winds the line automatically with the push of a button saving time and effort. This feature is particularly useful for those who trim frequently and hate manual spool winding.
A 15 inch cutting swath with professional grade line handles thick weeds and tall grass with ease. The telescopic shaft ensures a comfortable fit for users of different heights improving ergonomics.
Ideal for large properties or users who want the best reliability this trimmer offers robust warranties and fast charging. The 56V system provides ample power for tough jobs while remaining cordless and quiet.
PowerLoad Technology
Simply feed the line through the head and press a button to auto wind the spool ensuring you stay productive without frustrating manual winding.
Telescopic Shaft Adjustment
The aluminum shaft length can be quickly adjusted to fit your height reducing back strain and making the tool more comfortable for prolonged sessions.
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5. Electric Weed Wacker Eater – Lightweight Battery Powered String Trimmer for Small Yards
Electric Weed Wacker Eater Cordless Battery Powered String Trimmer Whacker
9000 RPM cutting head
12 inch cutting width
Dual 2.0Ah batteries
Safety goggles included
This Electric Weed Wacker Eater is designed for small yards and garden areas with a focus on simplicity and ease of use. Its 4.4 star rating highlights user appreciation for its quiet operation and efficient design.
Pros
- Automatic line feed system
- Impact resistant goggles included
- Low noise operation
- Tool free assembly
- Balanced lightweight structure
Cons
- Limited battery runtime per charge
- Plastic construction may feel less durable
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A 9000 RPM motor and 12 inch cutting width allow for fast coverage of grass and weeds. The automatic line feed releases line smoothly without bumping which streamlines the trimming process.
Included safety goggles and a reinforced safety guard add a layer of protection against debris. The tool free assembly means you can start trimming minutes after unboxing the product.
This trimmer is best for users with smaller properties who want a lightweight and easy tool. Its low noise levels ensure you can work early in the morning without disturbing neighbors.
Comprehensive Safety Features
Safety goggles and a guard block clippings and stones ensuring you can work safely without extra gear or risk of injury during trimming.
Quiet Operation Design
Optimized motor and acoustic dampening reduce noise making this a neighbor friendly option for residential areas with strict quiet hours.
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6. Weed Wacker Eater Electric – Lightweight Battery Powered String Trimmer for Storage
Weed Wacker Eater Electric String Trimmer Battery Powered Lawn Trimmer
9000 RPM cutting head
12 inch cutting width
Dual 2.0Ah batteries
Detachable shaft design
This model is tailored for users with limited storage space who still want robust lawn care performance. With a 4.4 star rating it balances lightweight handling with sufficient power for daily yard maintenance.
Pros
- Detachable shaft storage
- Quiet and eco friendly
- Tool free assembly
- Rugged shockproof materials
- Auto manual line feed
Cons
- Weight varies by configuration
- Basic controls lacking advanced features
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The detachable shaft allows compact storage in small sheds or garages. A 12 inch cutting width reduces the number of passes needed to maintain a neat lawn appearance effectively.
Equipped with two 2.0Ah batteries and fast charging it offers reliable runtime for medium lawns. The rugged construction withstands daily use and handles light brush without compromising on durability.
Perfect for those prioritizing easy storage and setup this trimmer is simple to assemble and operate. The eco friendly operation without fumes ensures a cleaner experience for both the user and the environment.
Space Saving Design
The split shaft design means you can store the tool in half the space required by traditional bulkier lawn mower tools in small homes.
Efficient Battery Management
Dual batteries and a fast charger mean you can switch packs to keep working continuously without waiting long for a single charge to complete.
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7. 20V Cordless Weed Wacker – Lightweight Battery Powered String Trimmer for Seniors
20V Cordless Weed Wacker Battery Powered Weed Eater with 2 Batteries
3.5 lbs ultra lightweight
12 inch cutting swath
40-60 minutes runtime
Auto feed system
This 20V Cordless Weed Wacker focuses on ultra lightweight design and ease of use especially for seniors or beginners. A 4.1 star rating indicates basic reliability with room for improvement in line management.
Pros
- Ultra lightweight 3.5 lbs
- Extended dual battery runtime
- 180 degree pivoting head
- Low noise under 75 dB
- Tool free assembly
Cons
- Lower overall rating
- Line may need frequent extension
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At just 3.5 pounds it is significantly lighter than many competitors reducing arm fatigue significantly during extended use. The dual batteries offer up to 40 to 60 minutes of continuous runtime for larger yards.
The 180 degree pivoting head allows trimming at any angle ideal for tight spaces under fences or around trees. This flexibility enhances usability in complex garden layouts without straining the user.
Best for those who need maximum lightness this tool is easy to handle and assemble. Its quiet operation under 75 dB ensures a peaceful gardening experience without disturbing the neighborhood environment.
Ultra Lightweight Ergonomics
Weighing only 3.5 lbs this trimmer is ideal for users who prioritize lightness to avoid back and arm strain during yard work sessions.
Extended Dual Battery Runtime
Two batteries combined provide up to 60 minutes of continuous use allowing you to finish larger lawns without interruption or long waits.
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8. Greenworks 40V – Lightweight Battery Powered String Trimmer with Warranty
Greenworks 40V 12 in Cordless String Trimmer
12 inch dual line
0.065 inch dual line
Variable speed trigger
3 year tool warranty
The Greenworks 40V String Trimmer provides efficient dual line cutting and solid build quality backed by a 3 year warranty. Its 4.3 star rating reflects good performance for standard lawn edging and trimming tasks.
Pros
- Dual line cutting path
- Variable speed control
- 3 year limited warranty
- Balanced ergonomic design
- Auto feed line system
Cons
- Limited battery life per charge
- No automatic height adjustment
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The 12 inch cutting path with 0.065 inch dual line delivers consistent results across grass and light weeds. A variable speed trigger gives precise control for edging or extra power when facing dense growth.
The auto feed line system eliminates bumping and keeps the cutting process smooth without manual line adjustments. This convenience helps maintain steady progress through yard work without frequent stops.
Ideal for users wanting long term reliability this trimmer offers a robust warranty and balanced ergonomics. Its design reduces fatigue during routine maintenance making it a solid choice for homeowners.
Dual Line Cutting Efficiency
The dual line system provides wider coverage and durability allowing you to handle tough weeds without breaking the line during heavy use.
Long Term Reliability
A 3 year limited warranty on both tool and battery gives confidence that the product is built to last for multiple seasons of yard maintenance.
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9. Battery Powered Weed Wacker – Lightweight Battery Powered String Trimmer for Beginners
Battery Powered Weed Wacker Cordless Lightweight for Seniors & Small Lawns
9000 RPM motor
Dual 2.0Ah batteries
12 inch cutting width
Detachable shaft
This Battery Powered Weed Wacker is tailored for seniors and small lawns with a focus on comfort and ease of handling. Its 4.4 star rating suggests users appreciate its balanced design and quiet operation.
Pros
- 9000 RPM performance
- Auto manual line feed
- Split shaft storage
- Ergonomic balanced design
- Quiet low vibration
Cons
- Plastic build may wear
- Battery life varies by load
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With dual 2.0Ah batteries you get reliable runtime for daily tasks. The 9000 RPM motor ensures fast and precise cutting for grass and light weeds around your yard.
The detachable shaft design simplifies storage in small spaces like closets or garages. Auto plus manual line feed ensures you keep trimming without stops for line adjustments during the process.
Best for beginners or those needing a simple tool this trimmer is easy to set up and use. Its low vibration and quiet operation contribute to a comfortable and neighbor friendly lawn care routine.
Convenient Storage Design
The split shaft allows the tool to be separated into smaller parts fitting neatly into compact storage spaces in small homes or sheds.
Balanced Ergonomics
A well balanced structure reduces fatigue and makes maneuvering easier when trimming around obstacles like trees or landscape borders in the yard.
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10. CRAFTSMAN V20 – Lightweight Battery Powered String Trimmer with Telescoping Pole
CRAFTSMAN V20 Weed Wacker Cordless String Trimmer and Edger
13 inch cutting swath
Automatic line advance
Ergonomic telescoping pole
3 year limited warranty
The CRAFTSMAN V20 Weed Wacker combines efficiency with a telescoping pole for easy handling. Its 4.4 star rating reflects user satisfaction with its design and extended runtime capabilities for lawn care.
Pros
- 13 inch efficient swath
- Ergonomic telescoping pole
- VERSATRACK compatible
- 2 speed settings
- Extended runtime options
Cons
- Requires V20 battery system
- No included spare line
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A 13 inch cutting swath maximizes efficiency helping you maintain a well manicured lawn with less effort per session. The automatic line advance ensures smooth operation without bumping interruptions.
The ergonomic telescoping pole makes conversion from trimmer to edger quick and easy. VERSATRACK compatibility allows organized storage on walls keeping your workspace tidy and tools easily accessible.
Ideal for users already invested in the V20 system this tool offers flexible performance with two speed settings. The 3 year limited warranty provides peace of mind for long term usage and reliability.
Space Saving Wall Organization
The integrated hook lets you hang the tool on VERSATRACK systems keeping it off the floor and organized in your garage or shed.
Flexible Speed Control
Two speed settings let you choose between more power for thick weeds or longer runtime for light trimming tasks based on current needs.
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Buying Guide – How to Choose the Best Lightweight Battery Powered String Trimmer
Selecting the right lightweight battery powered string trimmer involves evaluating several key factors to ensure you get a tool that fits your yard size and physical needs.
Battery Voltage and Compatibility
Battery voltage determines the power output of the trimmer. Higher voltages like 40V or 56V offer more cutting power for thick weeds but may add weight. Many brands offer battery ecosystems where one battery fits multiple tools which can be cost effective.
Look for systems that allow you to use the same battery across different lawn tools to save money and reduce spare parts.
Cutting Swath and Line Diameter
The cutting swath is the width the trimmer can cut in one pass. A wider swath like 13 or 15 inches covers more ground quickly. The line diameter affects durability so thicker lines handle tough weeds better without breaking frequently.
Choose a cutting width that matches your lawn size and line durability for the weeds you typically encounter.
Weight and Ergonomics
Since this guide focuses on lightweight models aim for tools under 6 pounds for reduced fatigue. Adjustable handles and telescoping shafts help customize the fit to your height and improve comfort during use.
Prioritize models with padded grips and balanced designs to minimize strain on your arms and back.
Runtime and Battery Management
Runtime varies by battery capacity and load. Dual battery kits allow you to swap out packs and keep working without waiting for a recharge. Fast charging technology reduces downtime significantly.
Check estimated runtime and whether dual batteries are included to ensure uninterrupted lawn care sessions.
Additional Features and Accessories
Features like automatic line feed save time and effort compared to manual bump systems. Edging conversion allows one tool to handle both trimming and edging tasks. Safety guards and goggles add protection.
Look for useful extras like tool free assembly and adjustable guards that enhance ease of use and safety.
Warranty and Brand Reputation
A solid warranty protects your investment. Many top brands offer 3 to 5 year warranties on tools and batteries. Established brands tend to have better customer service and part availability.
Consider the length of the warranty and brand support when selecting a trimmer for long term reliability.
How to Use and Care for Your Lightweight Battery Powered String Trimmer
Before starting always charge the batteries fully and check that the safety guard is properly attached. Ensure the trimmer line is threaded correctly through the head to avoid jams during operation.
Hold the tool with both hands using the auxiliary handle for balance. Move the trimmer slowly and steadily across your lawn allowing the line to cut without forcing it through thick grass or debris.
After use clean the trimmer head and store it in a dry place. Check the line level regularly and replace the spool when needed to maintain optimal performance and cutting quality.
Frequently Asked Questions
Are lightweight battery powered string trimmers powerful enough for thick weeds?
Many modern models are designed with high torque motors that can handle thick weeds effectively. Choosing a model with a higher voltage battery and thicker line will improve performance on dense vegetation.
How long does the battery last on a typical lightweight string trimmer?
Battery life varies by capacity and workload but typically ranges from 20 to 60 minutes on a single charge. Models with dual batteries allow you to extend runtime significantly by swapping packs.
Can a battery powered string trimmer replace a lawn edger?
Yes many lightweight models feature convertible heads that allow them to function as both a trimmer and an edger. This versatility helps save space and cost while maintaining professional edge quality.
What is the best line diameter for general lawn maintenance?
A line diameter of 0.065 to 0.095 inches is suitable for general residential lawn care. Thicker lines offer better durability for tough weeds but may require a more powerful motor to spin efficiently.
Do battery powered string trimmers require regular maintenance?
They require minimal maintenance compared to gas models. Regularly cleaning debris from the head checking the line length and storing batteries properly in a cool place will keep them running well.
Are there any safety considerations when using a battery powered string trimmer?
Always wear eye protection and sturdy shoes to guard against debris. Keep bystanders and pets at a safe distance and follow manufacturer instructions for line loading and operation to prevent accidents.
Final Thoughts on Choosing the Best Lightweight Battery Powered String Trimmer
We have highlighted ten top rated lightweight battery powered string trimmers including the WORX 20V and EGO Power+ which excel in versatility and premium performance respectively.
Prioritize battery life weight and cutting width based on your specific lawn needs to ensure a comfortable and efficient yard care experience with any selected model.
Prices and availability change frequently so please verify current product details and shipping options before making your purchase decision.