Quick verdict
The best cordless string trimmer for you depends on your yard size and typical vegetation. For most homeowners, a 56V brushless model with a 14-16 inch cutting width offers the best balance of power, runtime, and weight. If you prioritize lightweight comfort, a 40V model may suffice for regular maintenance.
EGO Power+ ST1620T
The EGO ST1620T combines a powerful 56V brushless motor with a 16-inch cutting width, making it one of the most efficient trimmers available. Owner reviews praise its load-sensing line feed that automatically adjusts to grass density, and the battery consistently delivers over 60 minutes of runtime. The only downsides are its higher weight and premium price, but most users find the performance worth it.
60+ minute runtime and brushless motors define the top cordless electric string trimmers. Compare specs, cutting width, and battery compatibility to find.
After weeks of comparing specs, reading verified owner reviews, and cross-referencing industry standards, I’ve narrowed down the best cordless electric string trimmers of 2026. The market has evolved significantly, with brushless motors becoming standard and battery technology pushing runtimes past 60 minutes on a single charge. I focused on five models that consistently deliver on power, battery life, and ease of use, without relying on lab tests or real-world claims.
Each trimmer was evaluated based on its motor type, cutting width, line feed system, battery compatibility, and owner-reported reliability. I also considered noise levels, weight, and ergonomics from user feedback. The goal was to find trimmers that balance performance with practical features for homeowners and professionals alike.
How we picked
To compile this guide, I compared manufacturer specifications against verified owner reviews on major retail sites and forums. I prioritized trimmers with brushless motors for efficiency and longevity, and looked for at least 12-inch cutting width for reasonable coverage. Battery voltage and amp-hour ratings were cross-checked with claimed runtimes, and I noted common complaints about line feed jams or battery degradation. Products with consistent 4+ star ratings and at least 100 reviews made the shortlist. I excluded any models with unverified performance claims or limited availability.
Top picks compared
| Pick | Best for | Score | |
|---|---|---|---|
| EGO Power+ ST1620T | Best Overall | 9 | Check price |
| Greenworks 21362 Pro 80V | Best Value | 8.5 | Check price |
| DEWALT DCST972X1 | Best Professional-Grade | 8.5 | Check price |
| RYOBI 40V HP Brushless 15 in. | Best Lightweight | 8 | Check price |
| Worx WG170 GT Revolution | Best Innovative Design | 7.5 | Check price |
Our picks up close
EGO Power+ ST1620T
The EGO ST1620T combines a powerful 56V brushless motor with a 16-inch cutting width, making it one of the most efficient trimmers available. Owner reviews praise its load-sensing line feed that automatically adjusts to grass density, and the battery consistently delivers over 60 minutes of runtime. The only downsides are its higher weight and premium price, but most users find the performance worth it.
Where it shines
- Excellent cutting power and 16-inch swath
- Load-sensing line feed reduces jams
- Long battery life with 56V 5.0Ah pack
Where it falls short
- Heavier than some competitors
- Battery and charger sold separately
Greenworks 21362 Pro 80V
The Greenworks 21362 Pro offers strong 80V performance at a lower price point than many competitors. Verified owners consistently note its reliable bump-feed head and comfortable grip, though some report slightly shorter runtime than the EGO. It's a great choice for those already in the Greenworks 80V ecosystem.
Where it shines
- Powerful 80V brushless motor
- Comfortable ergonomic handle
- Good value for the performance
Where it falls short
- Battery runtime averages 45 minutes
- Line feed can be finicky with thick weeds
DEWALT DCST972X1
The DEWALT DCST972X1 is built for heavy-duty use with a 60V brushless motor and a 15-inch cutting width. Owner reviews highlight its durability and ability to handle thick brush, but it's heavier and louder than consumer models. The variable speed trigger and dual-line bump feed give excellent control.
Where it shines
- Rugged construction for commercial use
- Variable speed trigger for precision
- Dual-line bump feed is reliable
Where it falls short
- Heaviest model at 12.5 lbs
- Louder than average at 88 dB
RYOBI 40V HP Brushless 15 in.
The RYOBI 40V HP is the lightest in the lineup at 8.5 lbs, making it ideal for smaller yards or users who prioritize comfort. Owner reviews appreciate the easy-to-use bump feed and quiet operation, though some note the 40V motor lacks power for very thick weeds. It's a solid choice for routine trimming.
Where it shines
- Lightweight and easy to maneuver
- Quiet operation at 82 dB
- Affordable price point
Where it falls short
- Less power for thick brush
- Battery runtime around 40 minutes
Worx WG170 GT Revolution
The Worx WG170 GT Revolution features a unique 20V battery system and a self-winding line feed that owners find convenient, though some report the line can snap under heavy use. Its tilting head and adjustable handle make it versatile for edging. It's best for light to medium trimming tasks.
Where it shines
- Self-winding line feed for easy reload
- Tilting head for edging
- Adjustable handle for comfort
Where it falls short
- 20V battery limits runtime (30 min)
- Line durability issues with thick weeds
Before you buy
Battery Voltage and Amp-Hours
Higher voltage (56V-80V) generally means more power, but amp-hours determine runtime. Look for at least 4.0Ah for 45+ minutes of trimming. Consider whether you want to stay within a brand's battery ecosystem.
Cutting Width
Wider cutting width (14-16 inches) covers more ground per pass, reducing trimming time. However, wider heads can be heavier and less maneuverable in tight spaces.
Line Feed System
Bump feed is common and reliable, but automatic load-sensing systems (like EGO's) reduce interruptions. Self-winding heads (like Worx) are convenient but may jam with thick grass.
Weight and Ergonomics
Lighter trimmers (under 10 lbs) are easier to use for extended periods. Look for adjustable handles and padded grips to reduce fatigue. Heavier models often have more power but can be tiring.
The wrap-up
The best cordless string trimmer for you depends on your yard size and typical vegetation. For most homeowners, a 56V brushless model with a 14-16 inch cutting width offers the best balance of power, runtime, and weight. If you prioritize lightweight comfort, a 40V model may suffice for regular maintenance.
Quick answers
Battery life varies by voltage and amp-hours. Most 40V-56V trimmers with 4.0Ah batteries last 40-60 minutes under normal use. Higher voltage (80V) can offer similar runtime with less amp-hours due to efficiency.
Many cordless trimmers have a pivoting head that allows you to rotate the cutting head 90 degrees for edging along sidewalks and driveways. Check the product specs for this feature.
Yes, brushless motors are more efficient, quieter, and have a longer lifespan than brushed motors. They also provide more torque and better battery runtime, making them a worthwhile investment.
How we made this guide
We compare every pick on the factors that matter, cross-checking manufacturer specifications against aggregated verified owner reviews. We rank independently and never take payment for placement. We have not personally tested every product; where we have not, the ranking reflects verified specs and owner feedback rather than a hands-on review.
How it was written: this guide was researched and reviewed by the TheTestedHub editorial team for accuracy.
Affiliate disclosure: TheTestedHub is reader-supported. When you buy through links on our site, we may earn a commission at no extra cost to you.
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