Comparison: Best Heavy Duty Cordless String Trimmer (Updated | Oct 14th)
When it comes to maintaining large yards or tackling tough overgrowth, a **heavy-duty cordless string trimmer** offers the power and portability needed for demanding tasks. This guide compares top models, focusing on battery life, cutting performance, durability, and ease of use to help you find a reliable tool suited to professional-grade or heavy residential workloads. Whether you prioritize runtime, brushless motor efficiency, or ergonomic design, our neutral analysis highlights key features and trade-offs—empowering you to choose the best trimmer for your needs without the hype.
Editor’s Choice
Best for a specific purpose
-
Best for best budget:
VARSK 20V String Trimmer Cordless -
Best for corded power:
Greenworks 10 Amp 18-Inch Corded String Trimmer (Attachment Capable) -
Best for dual battery:
Wugeku 40V String Trimmer Cordless 14" Electric Weed Wacker (4.0 Ah Batteries*2 & Charger Included) -
Best for ergonomic design:
Worx String Trimmer Cordless GT3.0 20V PowerShare 12" Edger & Weed Trimmer (2 Batteries & Charger Included) WG163 -
Best for premium performance:
EGO POWER+ String Trimmer -
Best for replacement line:
Viabrico String Trimmer Line -
Best for heavy-duty blades:
Greenworks 40V 13" 2-in-1 Cordless Trimmer/Edger w/ 20 Blades -
Best for fast loading:
EGO Power+ 56-Volt 15" String Trimmer with POWERLOAD™ with 2.5Ah Battery and 210W Standard Chargers -
Best for best overall:
Worx WG183 40V 13" Cordless String Trimmer (Batteries & Charger Included) -
Best for durable line:
Oregon Magnum Gatorline 095 Trimmer Line Heavy Duty
Product Comparison: Best Heavy Duty Cordless String Trimmer
Best budget
VARSK 20V String Trimmer Cordless, 12 Inch 2 in 1 Trimmer and Edger, Automatic Line Feed, Includes 2 X 2.0Ah Batteries/1 X Fast Charger/6 X Spare Spools, for Lawn, Garden, etc, Orange
VARSK
- 【2-in-1 String Trimmer & Edger】VARSK Professional string trimmer effortlessly converts between trimming and edging modes, simply press the 90° rotation button and rotate the aluminum tube 90° to the left. Saving you time and money on separate yard tools. With the 8700RPM advanced motor, it will help you finish multiple works for your lawn, garden, yard, etc
- 【Smart Auto-Feed Line Technology】Never stop to adjust lines mid-task! Our advanced string trimmer automatically feeds fresh cutting line when needed and self-cuts excess length for consistent, uninterrupted yard maintenance. The spacer guard will protect your plants and lawn ornaments
- 【2x 2.0Ah Batteries and Fast Charging】Comed with 2 x 2.0Ah lithium-ion batteries, power through tough jobs with our longest-lasting string trimmer. Dual batteries provide 50% more runtime than single battery, delivering 30+ minutes of cordless freedom for your yard
- 【Lightweight and Adjustable Design】Weighing just 5.3 lbs, this easy-to-maneuver string trimmer features a 180° adjustable handle and 80° pivoting cutting head for multi-angle operation. You can use it in many hard-to-reach places. The integrated stabilizer wheel ensures professional edging results with balanced control, making tight space trimming effortless
- 【6 Bonus Spools + 1 Year Warranti】Includes 6 premium replacement spools (3 X longer life) for quick no-tool swaps. Backed by hassle-free 1-year warranti – your ultimate durable string trimmer investment. If you have any problems, please don't hesitate to reach out to us, and we will answer it within 24 hours
Corded power
Greenworks 10 Amp 18-Inch Corded String Trimmer (Attachment Capable), 21142
Greenworks
- 10Amp motor with straight shaft and .080 dual line bump feed
- Light weight and simple electric start with cord lock feature makes it easy to use
- Large 18" cutting path helps speed up the trimming process
- Cushion and over-mold grip and handle for operator comfort with auxiliary handle for more control when trimming. Compatible GreenWorks Replacement Spool, Model 29622
- Quick-connect coupler allows for easy attachment changes and fits various name brands
Dual battery
Wugeku 40V String Trimmer Cordless 14" Electric Weed Wacker (4.0 Ah Batteries*2 & Charger Included)
Wugeku
- VERSATILE CUTTING: equipped with 3T blade, 40T blade, and string spool—each with two replacements—to handle trimming, edging, and heavy-duty cutting across various gardening tasks with ease.
- DUAL BATTERIES: includes two 20V 4.0Ah lithium batteries and a dual-port charger; fully charges in 2 hours and delivers 40V power when combined, ensuring strong and efficient performance.
- TWO MODES: switch between high and low speed; run time is up to 40 minutes on high and 60 minutes on low—perfect for both quick jobs and longer yard work sessions.
- FOLDABLE DESIGN: the shaft folds at the center for compact storage and easy transport, making it ideal for garages, sheds, or vehicles with limited space.
- COMFORT STRAP: includes an adjustable shoulder strap that helps reduce fatigue and improve control, allowing you to mow more comfortably for longer periods.
Ergonomic design
Worx String Trimmer Cordless GT3.0 20V PowerShare 12" Edger & Weed Trimmer (2 Batteries & Charger Included) WG163
WORX
- [TRIMMER & EDGER 2-in-1] Easily converts from a string trimmer to an edger lawn tool in just seconds
- [INSTANT LINE FEED] This grass trimmer has innovative push button Command Feed spool system for instant line feeding. Plus, Free Spools for Life
- [HEAD TILTS 90°] So you can use string trimmer and edger on sloped terrain, and get to tough-to-reach places
- [RUBBERIZED WHEELS] Support and guide the edger, giving you straighter lines and cleaner cuts
- [SPACER GUARD] Adjustable, so you don't damage plants, landscape features, and lawn ornaments while you're using the lawn trimmer
- [SPECS] 7600 rpm no-load speed, 12” cutting diameter, 5.3 lbs. machine weight, 10’ cutting line length, 0.065” line diameter
- [BATTERIES INCLUDED] 2 powerful and lightweight 20V Power Share MaxLithium batteries come with this weed trimmer and can be used on any other tool in the WORX PowerShare family
- [INCLUDES] 20V String Trimmer & Edger, 2*20V MaxLithium Battery, 20V Charger, Trimmer Spool, Support Wheels, Safety Guard
Premium performance
EGO POWER+ String Trimmer, Battery Powered, 15" Trimmer for Weeds and Grass with Rapid Reload, Split Shaft, Includes 56V 2.5Ah Battery and Charger – ST1502SA
EGO Power+
- Easily cuts down weeds and grass with its professional-grade, dual feed spiral twist 0.095 inch string cutting line and 15 inch cutting swath.
- High-Efficiency Brushless Motor delivers longer run times, low vibrations, and an extended motor life. IPX4 Weather Resistant.
- The Rapid-Reload head allows you to quickly and easily load new cutting line; line up the arrows on the head, insert the line and twist.
- Variable speed control suitable for different working situations.
- Fan Cooled Charging System, prevents the battery and charger from overheating. 50-minute charge time from zero to full charge for the included 2.5Ah Battery. Charges all EGO Batteries.
- Package Include 1pc 56 Volt 2.5Ah battery and 1pc standard charger. Industry leading ARC Lithium technology for incredible power and performance. Compatible with all EGO tools.
- 5-year tool warranty, 3-year battery warranty
Replacement line
Viabrico String Trimmer Line, Square Orange Heavy Duty Weed Eater String, Premium Nylon Universal 0.095" x 1.7LB, 330Foot
VIABRICO
- Orange Trimmer Line: The Viabrico weed wacker string diameter is thicker at 0.095 in and 330 ft in length, and the bright orange color makes it easier to see it in the lawn to secure its place.
- High Strength Nylon Material: Made from tough nylon, heavy-duty and durable to use and not easy to break. Proprietary commercial grade copolymer nylon provides superior strength and durability, vibration and noise compared with traditional round nylon lines.
- Square Cut: It is more effective than a regular round cut because the edge of the square will be sharper, allowing you to cut through heavier weeds and thicker grass more quickly and efficiently, reducing cutting time.
- Compatibility: The weed eater string .095 line perfect replacement weed eater string line for all gas and electric trimmers. Notes: Please check that your trimmer head can use .095” line.
- Area of Applicable: Grass in the yard, weeds in the fields, and trim the edges of the lawn, etc. Efficient and Easy to use, keep your garden looking tidy and neat.
Heavy-duty blades
Greenworks 40V 13" 2-in-1 Cordless Trimmer/Edger w/ 20 Blades, Heavy Duty for Thick Weeds/Brush, Edges Fence/Sidewalk, Gas-Free Lightweight, Battery and Charger Not Included
Greenworks
- [2-in-1 Trimmer/Edger Pro Conversion] – Switch modes in 3 clicks (vs 15min gas tool changes) – includes steel edging guide for razor-sharp lawn borders.
- [7-Position Pivoting Head] – Trim under decks (Pos.1) → Edge sidewalks (Pos.3) → Clear fence lines (Pos.5) → Detail flower beds (Pos.7) – 0.065" auto-line handles 1.5" weeds.
- [Brush Cutter Upgrade & 20 Replacement Blades] – Includes Durable Brush Cutter Attachment for Thick Weeds/Shrubs | 20 Reinforced Plastic Blades & Tool-Free Replacement Kit | 13" Cutting Width Tackles Tough Terrain
- [Telescoping Shaft + 7-Position Handle] – Adjusts 40"-52" for 5'2"-6'4" users. 30% lighter than gas trimmers (7.8lbs) with anti-vibration tech reduces fatigue by 40%.
- [3-Yr Tool & Battery Warranty] – Industry's longest coverage with free parts replacement. 40V battery powers 75+ tools – use same battery with mowers/chainsaws/snow blowers.
Fast loading
EGO Power+ 56-Volt 15" String Trimmer with POWERLOAD™ with 2.5Ah Battery and 210W Standard Chargers, ST1511T
EGO Power+
- POWERLOAD technology; load your line, push a button and go
- Get up to 45 minutes of run time on a single charge with the included 56V 2.5Ah ARC Lithium Battery
- Telescopic Aluminum Shaft quickly fits your height for ultimate comfort
- High-Efficiency Brushless Motor
- 15 in. Cutting Swath
- Professional-grade, dual line spiral-twist 0.095 in. line
- Variable speed with 2-Speed Settings
- Weather-Resistant Construction (ipx4)
Best overall
Worx WG183 40V 13" Cordless String Trimmer (Batteries & Charger Included), Black and Orange
WORX
- [ULTRA-LIGHTWEIGHT, STREAMLINED DESIGN] For incredible maneuverability and less user fatigue
- [DUAL-EXIT CUTTING HEAD] For greater cutting efficiency
- [AUTOMATIC-FEED SPOOL SYSTEM] For effortless line advancement
- [SAME BATTERY, EXPANDABLE POWER] Worx Power Share is compatible with all Worx 20V and 40V tools, outdoor power and lifestyle products
- [ADJUSTABLE AUXILIARY HANDLE] For a comfortable, and customized, user experience
- [INCLUDES] Grass trimmer, spool (WA0007), (2) 20V 2.0Ah batteries (WA3575), 2A dual-charger (WA3770)
Durable line
Oregon Magnum Gatorline 095 Trimmer Line Heavy Duty, Professional Twisted Weed Wacker String for Gas and Electric Grass Trimmer and Brushcutters, Fits Most Standard Models .095" x 282-Foot (20-020)
Oregon
- 𝗣𝗥𝗢𝗙𝗘𝗦𝗦𝗜𝗢𝗡𝗔𝗟 𝗣𝗘𝗥𝗙𝗢𝗥𝗠𝗔𝗡𝗖𝗘: Our grass and weed trimmer line allows for cleaner, straighter cuts with less effort than traditional trimmer line; ideal for weeds, lawn and thick vegetation
- 𝗨𝗡𝗜𝗩𝗘𝗥𝗦𝗔𝗟 𝗙𝗜𝗧: Fitting all standard trimmer heads, this trimmer string can be used with most brands, including: Husqvarna, Ryobi, Black & Decker, Craftsman, Stihl, Makita, Greenworks, Echo and More
- 𝗛𝗜𝗚𝗛-𝗤𝗨𝗔𝗟𝗜𝗧𝗬 𝗡𝗬𝗟𝗢𝗡: High-strength inner core resists breakage even in harsh environments, which means that the line lasts longer and you spend less time winding spools
- 𝗧𝗪𝗜𝗦𝗧𝗘𝗗 𝗧𝗥𝗜𝗠𝗠𝗘𝗥 𝗟𝗜𝗡𝗘: Produces less noise and less drag than other shapes whilst also delivering a straight cut, making it perfect for professionals and homeowners alike
- 𝗜𝗗𝗘𝗔𝗟 𝗙𝗢𝗥 𝗟𝗜𝗚𝗛𝗧 𝗧𝗢 𝗠𝗘𝗗𝗜𝗨𝗠 𝗪𝗢𝗥𝗞𝗟𝗢𝗔𝗗: From tidying flower beds to tackling tall grass or navigating rocky terrain, our durable line is built to withstand impact and deliver reliable results
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
Buying Guide
FAQs
What is the most powerful cordless option?
The EGO POWER+ 56-Volt String Trimmer (B08VRVVFHJ) offers high power for heavy-duty use.
Which trimmer has the longest runtime?
The Wugeku 40V String Trimmer (B0FBG9LZBG) includes a 4.0 Ah battery for extended operation.
What cordless trimmer has the widest cutting width?
The Greenworks 40V Cordless Trimmer/Edger (B0F21NV3F6) features a 13-inch cutting path.
Which model includes both trimmer and edger attachments?
The VARSK 20V String Trimmer (B0FJKYQYKY) is a 2-in-1 trimmer and edger.
What cordless trimmer has the highest voltage?
The EGO Power+ 56-Volt String Trimmer (B08VRVVFHJ) provides the highest voltage among cordless models.
Which cordless trimmer comes with a battery and charger?
The Worx WG183 40V Cordless String Trimmer (B08RW9X1QM) includes batteries and a charger.
What is the best cordless option for heavy weeds?
The EGO POWER+ String Trimmer (B07RHVS77W) is designed for tough weeds and grass.
