21V Electric Cordless Weed Wacker,Battery Powered Weed Eater String Trimmer
4.6Editor score
9500 RPM high torque motor
Includes dual batteries and charger
Auto line feed system
10 Best Lightweight Battery Powered String Trimmer (October 2026) Expert Guide
Finding the right tool for yard maintenance can be overwhelming. A lightweight battery powered string trimmer offers convenience and power without the hassle of gas engines or tangled cords.
We compared ten top-rated models based on motor speed, battery life, cutting width, and user feedback. Our analysis focuses on what matters most for homeowners seeking efficiency and comfort.
Each pick highlights unique strengths and ideal use cases. Remember that prices fluctuate, so check current listings before making your final decision to ensure the best value.
Top 3 Picks for Best Lightweight Battery Powered String Trimmer
WORX 20V 12 2-in-1 Cordless String Trimmer & Electric Lawn Edger, WG163
4.3Editor score
2-in-1 trimmer and edger
Instant line feed system
Lightweight rubberized wheels
EGO Power+ 15 Cord Cordless Weed Trimmer with Battery and Charger – ST1511T
4.4Editor score
15-inch cutting swath width
PowerLoad line loading technology
Brushless motor efficiency
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Top 10 Best Lightweight Battery Powered String Trimmer in 2026 Compared
This side-by-side comparison breaks down the key specifications of each model to help you identify the best fit for your yard size and maintenance needs.
ProductsSpecificationsEditor scorePrice
Editor's Choice
WORX WG163
20V Power Share battery
12-inch cutting diameter
5.5 lbs machine weight
90-degree head tilt
4.3Editor score
Editor's Choice
BLACK+DECKER LST300
20V MAX lithium battery
12-inch steel deck
6200 RPM speed
AFS auto feed spool
4.4Editor score
Best Budget
21V Electric Cordless
21V motor system
9500 RPM speed
12-inch cutting swath
5.27 lbs weight
4.6Editor score
EGO Power+ ST1511T
56V ARC lithium battery
15-inch cutting swath
Brushless motor
Telescopic aluminum shaft
4.4Editor score
Electric Weed Wacker Eater
9000 RPM cutting head
12-inch cutting width
Dual 2.0Ah batteries
5.27 lbs weight
4.4Editor score
Weed Wacker Eater Electric
12-inch cutting width
9000 RPM cutting head
Dual lithium batteries
Detachable shaft design
4.4Editor score
20V Cordless Weed Wacker
3.5 lbs lightweight
12-inch cutting swath
Dual 2.0Ah batteries
180-degree pivoting head
4.1Editor score
Greenworks 40V
40V lithium battery
12-inch dual line
Variable speed control
Ergonomic balanced design
4.3Editor score
Battery Powered Weed Wacker
9000 RPM motor
12-inch cutting width
Dual batteries included
Split-shaft design
4.4Editor score
CRAFTSMAN V20
V20 lithium battery
13-inch cutting swath
Telescoping pole
2-speed settings
4.4Editor score
1. WORX 20V 12-inch 2-in-1 Cordless String Trimmer & Electric Lawn Edger – Best Overall Lightweight Battery Powered String Trimmer
WORX 20V 12-inch 2-in-1 Cordless String Trimmer & Electric Lawn Edger
20V Power Share battery
12-inch cutting diameter
5.5 lbs machine weight
90-degree head tilt
The WORX WG163 stands out as a top contender for homeowners needing versatility. It combines a string trimmer and lawn edger in one tool, saving storage space and effort.
Pros
- Versatile 2-in-1 functionality
- Instant push button line feed
- Lightweight and easy to handle
- Compatible battery platform
- Includes wheels for edging
Cons
- Battery life varies by load
- Head tilt can be stiff
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Its instant line feed system eliminates the need for bumping, ensuring consistent trimming performance. The included wheels guide the edger for straight lines.
While efficient, the battery runtime depends on grass density. For larger yards, having spares is wise. The weight is manageable for most users.
If you want one tool for trimming and edging without gas hassle, this is a reliable choice. It balances performance with ease of use effectively.
Switching Between Trim and Edge
Converting from trimmer to edger takes seconds. The head tilts 90 degrees for access to sloped terrain.
Battery Compatibility
The 20V Power Share batteries work with other WORX tools. This ecosystem adds value if you own their garden gear.
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2. BLACK+DECKER 20V MAX String Trimmer and Edger – Reliable Performance for Small Yards
BLACK+DECKER 20V MAX String Trimmer and Edger
20V MAX lithium battery
12-inch steel deck
6200 RPM speed
AFS auto feed spool
This model excels in simplicity and ease of use. Its automatic feed spool advances line as needed without manual intervention.
Pros
- Quiet operation
- Automatic feed spool system
- Reduced vibration design
- Wall mountable charger
- Easy to start
Cons
- Smaller cutting swath
- Shorter runtime than premium options
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The steel deck provides durability for edge trimming. Vibration reduction features enhance comfort during longer sessions.
It may lack the power of larger motors but suits light maintenance well. Users appreciate the quiet operation compared to gas trimmers.
Ideal for those seeking a hassle-free solution for small lawns. It delivers consistent results without heavy lifting.
Automatic Feed Technology
The AFS system detects when line is needed. This prevents interruptions and keeps work flowing smoothly.
Noise Levels
Operation is significantly quieter than gas alternatives. You can trim early morning without disturbing neighbors.
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3. 21V Electric Cordless Weed Wacker – Best Value for Budget Buyers
21V Electric Cordless Weed Wacker
21V motor system
9500 RPM speed
12-inch cutting swath
5.27 lbs weight
At a fraction of the cost, this trimmer offers impressive specs. The 9500 RPM motor cuts through dense grass efficiently.
Pros
- High RPM for tough weeds
- Includes two batteries
- Fast charging capability
- Very lightweight design
- Automatic line feed
Cons
- Build quality is basic
- Line durability varies
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Two batteries mean you can swap them for extended work. The line feed is automatic, removing the need for bumping.
While the plastic feels lighter, it is sufficient for regular use. It is perfect for seniors or those prioritizing low weight.
If budget is a concern, this model delivers surprising power. It is a solid entry point into battery powered trimming.
Dual Battery System
Each battery provides extended runtime. Swapping them ensures you finish large jobs without downtime.
Ergonomic Design
Weighing only 5.27 lbs, it is easy to maneuver. The handle adjusts for comfortable positions.
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4. EGO Power+ 15-inch Cordless Weed Trimmer – Best High-End Option
EGO Power+ 15-inch Cordless Weed Trimmer
56V ARC lithium battery
15-inch cutting swath
Brushless motor
Telescopic aluminum shaft
EGO trimmers are known for professional-grade performance. The 15-inch swath covers ground quickly, ideal for larger yards.
Pros
- Widest cutting swath
- PowerLoad line loading
- Brushless motor efficiency
- 5-year tool warranty
- Adjustable shaft length
Cons
- Higher price point
- Heavy battery when fully charged
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PowerLoad technology winds line automatically, saving time. The brushless motor extends life and reduces vibration.
This investment pays off in longevity and ease. It handles thick weeds better than many competitors in this list.
Choose this if you want power and durability. The warranty reflects confidence in its long-term reliability.
PowerLoad Feature
Pushing a button loads line automatically. This removes frustration from spooling manually.
Shaft Adjustment
The telescopic aluminum shaft adjusts to your height. Proper fit reduces back strain during use.
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5. Electric Weed Wacker Eater Cordless – Versatile and Quiet Operation
Electric Weed Wacker Eater Cordless
9000 RPM cutting head
12-inch cutting width
Dual 2.0Ah batteries
5.27 lbs weight
This model prioritizes safety and noise reduction. It comes with goggles to shield eyes from debris.
Pros
- Includes safety goggles
- Quiet noise levels
- Easy tool-free setup
- Adjustable handle
- 2-in-1 trim and edge
Cons
- Runtime depends on load
- Plastic construction
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The acoustic-dampening design keeps noise low, perfect for residential areas. Setup is tool-free, getting you started fast.
While the body is plastic, it withstands regular yard tasks. The adjustable handle fits various users comfortably.
It is a balanced choice for everyday maintenance. Quiet operation ensures no neighbor complaints while working.
Included Safety Gear
Safety goggles are included to protect eyes. This adds value by avoiding extra purchases.
Noise Reduction
The motor runs significantly quieter than gas models. You can work early without disturbing neighbors.
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6. Weed Wacker Eater Electric String Trimmer – Efficient for Small Spaces
Weed Wacker Eater Electric String Trimmer
12-inch cutting width
9000 RPM cutting head
Dual lithium batteries
Detachable shaft design
The detachable shaft is a standout feature for storage. It fits neatly in small sheds or garages.
Pros
- Split shaft for storage
- Dual feed options
- Eco-friendly operation
- Lightweight balance
- Rugged construction
Cons
- Assembly required
- Battery not included (some bundles)
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Auto and manual line feed options give you control. The batteries provide consistent power for light tasks.
It is designed for eco-friendly maintenance without fumes. The lightweight balance reduces fatigue during use.
Ideal for homeowners with limited storage space. The split shaft makes transport to storage convenient.
Detachable Shaft
Split design allows compact storage. This saves space in small garages or sheds.
Manual Feed Option
Besides auto feed, you can press for line. This control helps with specific trimming needs.
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7. 20V Cordless Weed Wacker – Ultra-Lightweight Design
20V Cordless Weed Wacker
3.5 lbs lightweight
12-inch cutting swath
Dual 2.0Ah batteries
180-degree pivoting head
At 3.5 lbs, this is one of the lightest options. It is designed to minimize fatigue for seniors or women.
Pros
- Very light at 3.5 lbs
- 180-degree head pivots
- Dual battery runtime
- No oil or gas required
- Tool-free assembly
Cons
- Lower weight rating
- Basic build quality
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The pivoting head allows trimming at unique angles. You can reach under fences without awkward movements.
It offers good runtime with two batteries included. Setup is tool-free for immediate use.
If weight is your top priority, this fits well. It balances convenience with essential functionality.
3.5 lbs Weight
Weighing just 3.5 lbs reduces strain. Ideal for users needing extra light tools.
Head Pivoting
The head rotates 180 degrees. This helps reach awkward spots easily.
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8. Greenworks 40V 12 in Cordless String Trimmer – Balanced and Ergonomic
Greenworks 40V 12 in Cordless String Trimmer
40V lithium battery
12-inch dual line
Variable speed control
Ergonomic balanced design
Greenworks offers a 3-year warranty, showing reliability. The 40V system delivers steady power for consistent cuts.
Pros
- Variable speed trigger
- Dual-line cutting
- Long warranty
- Ergonomic grip
- Auto feed system
Cons
- Single battery included
- Price higher than budget
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Variable speed lets you match power to task. The dual-line system improves efficiency and coverage.
Its ergonomic design minimizes fatigue. Auto feed keeps line advancing without manual help.
A reliable choice for consistent performance. The warranty provides peace of mind for long-term use.
Variable Speed Trigger
Adjust power with the trigger. This precision helps with delicate edging.
Warranty Support
Backed by 3-year coverage. This ensures long-term support for your purchase.
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9. Battery Powered Weed Wacker Cordless – Lightweight for Seniors
Battery Powered Weed Wacker Cordless
9000 RPM motor
12-inch cutting width
Dual batteries included
Split-shaft design
Designed with seniors in mind, this trimmer prioritizes lightness. It reduces arm strain significantly compared to heavier models.
Pros
- Specifically lightweight
- Split shaft for storage
- Dual battery runtime
- Easy assembly
- Low vibration
Cons
- Basic construction
- Limited power for thick weeds
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The split shaft makes storage easy. Dual batteries ensure you have enough power to finish the lawn.
Low vibration adds to comfort. Setup is straightforward without tools required.
Perfect for smaller yards where power isn't critical. Comfort and ease are the main benefits.
Senior-Friendly Design
Lightweight and low vibration reduce fatigue. Designed for comfortable extended use.
Storage Convenience
Split shaft design saves space. Ideal for compact garages.
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10. CRAFTSMAN V20 Weed Wacker – Reliable Brand Value
CRAFTSMAN V20 Weed Wacker
V20 lithium battery
13-inch cutting swath
Telescoping pole
2-speed settings
CRAFTSMAN brings a trusted name to battery tools. The 13-inch swath cuts efficiently across lawn areas.
Pros
- VERSATRACK compatible
- Wide cutting swath
- Telescoping pole
- Quick conversion
- Reliable warranty
Cons
- Battery runtime moderate
- Weight heavier than ultralight
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Two-speed settings offer flexibility for different grass densities. The telescoping pole aids comfort.
VERSATRACK compatibility helps organize your garage. Setup is quick and conversion to edger is simple.
A solid, reliable option for general use. The brand reputation adds confidence to the purchase.
VERSATRACK Compatible
Hang the tool on wall systems. This keeps garages organized and clutter-free.
Two-Speed Control
Switch between power and runtime. Match speed to your specific task needs.
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Buying Guide – How to Choose the Best Lightweight Battery Powered String Trimmer
Selecting the right trimmer involves balancing weight, battery life, and cutting power. Consider these factors to match a tool to your yard size and physical needs.
Battery Voltage and Runtime
Voltage affects power; 20V models are lighter while 40V or 56V offer more torque. Look for dual batteries to avoid downtime during use.
Higher voltage means more cutting power but more weight. Choose based on your yard density and stamina.
Weight and Ergonomics
Lightweight trimmers reduce fatigue, crucial for seniors or those with back issues. Adjust the handle height to ensure comfort.
Look for balanced designs that distribute weight evenly. A tool that is 5 lbs feels lighter than unbalanced 6 lb models.
Cutting Swath Size
A wider swath covers more ground per pass. 12-inch to 13-inch is standard; 15-inch is better for large lawns.
Wider is faster but may be bulkier. Pick a width that matches your typical lawn size.
Line Feed System
Auto-feed systems advance line automatically, saving effort. Bump-feed models require tapping on the ground.
Choose auto-feed for convenience. It keeps work flowing without stopping for adjustments.
Trimming vs. Edging
Some models switch between trimmer and edger modes. This saves space if you only have one tool.
If you want clean edges, a 2-in-1 model is ideal. Check head tilt options for sloped terrain.
Brand Reputation and Warranty
Brands like EGO or WORX often provide better warranties. A 3-year or 5-year warranty shows confidence in durability.
Check if the battery is covered separately. A good warranty protects your investment long-term.
How to Use and Care for Your Lightweight Battery Powered String Trimmer
Before starting, ensure the battery is fully charged and installed securely. Wear safety glasses to protect from debris flying during operation.
Hold the tool with both hands and maintain a firm grip. Start the motor and move it smoothly side to side for even trimming coverage.
After use, clean the head and shaft of grass clippings. Store the battery in a cool, dry place to maintain its lifespan.
Frequently Asked Questions
How long do battery powered string trimmer batteries last?
Typical lithium-ion batteries last 20 to 40 minutes per charge depending on grass density. Dual battery kits allow you to swap packs and double runtime.
Are battery string trimmers as powerful as gas ones?
Modern battery models match gas power for most residential tasks. However, gas units may still win in extremely heavy brush cutting.
What is the ideal weight for a lightweight trimmer?
Most lightweight models weigh between 3.5 to 6 lbs. This range ensures comfort while maintaining enough stability for effective cutting.
Can I trim wet grass with a battery trimmer?
Avoid trimming wet grass as it can clog the head and reduce efficiency. Wait until the grass is dry for best results.
Do these trimmers require a lot of maintenance?
Battery trimmers need less maintenance than gas ones. Just keep the line feed clean and store batteries properly.
Is it safe for seniors to use these tools?
Yes, lightweight models are designed for ease of use. Look for ergonomic handles and low vibration to ensure safety and comfort.
How do I replace the trimmer line?
Most models feature automatic or bump-feed spools. To replace, remove the old spool, insert new line, and follow manufacturer instructions.
Final Thoughts on Choosing the Best Lightweight Battery Powered String Trimmer
The WORX WG163 and EGO Power+ models lead our list for their versatility and performance. Budget options like the 21V trimmer offer surprising value for light tasks.
Prioritize battery life and weight based on your physical needs. If storage is limited, consider split-shaft designs for easy keeping.
Prices and availability change often, so verify details before purchasing. Investing in the right tool saves time and effort for future lawn care.