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A well-chosen cordless garden string trimmer makes quick work of lawn edges, tight spots, and light brush without the fuss of cords or frequent stops. For homeowners and small-property gardeners, the right battery-powered trimmer balances runtime, cutting capacity, and ease of use so you can finish edging and tidying in a single session. This guide covers seven shortlisted cordless garden string trimmers that perform reliably across common yard tasks. We evaluate each option on battery life, cutting performance, handling, and upkeep to help you pick the best fit for your outdoor chores.
Top Picks at a Glance
| Best Overall The best all-around choice for most situations | WORX WG170 GT Revolution 20V 12" 3-in-1 Cordless String Trimmer |  |
| Best Quality Built to a higher standard if you want something more solid | DEWALT 20V Cordless String Trimmer and Blower Combo (DCKO215M1) |  |
| Best Value The sweet spot between price and what you get | BLACK+DECKER 20V MAX 12" Cordless String Trimmer and Edger (LST300) |  |
| Best Budget The cheapest option that still gets the job done reliably | LMZTCYA Cordless Electric String Trimmer with 2×2000mAh Batteries and Multi-Tool Blades |  |
| Highest Rated A top-rated pick with lots of positive feedback | ALSO GO 21V Cordless Electric Weed Wacker with 12" Cutting Swath and 2×2.0Ah Batteries |  |
| Most Popular A crowd favorite that many people choose with confidence | WORX 20V 12" 2-in-1 Cordless String Trimmer & Lawn Edger (WG163) |  |
| Best Seller A high-volume bestseller chosen again and again | WORX WG928 20V 12" Cordless Trimmer & 360 CFM Leaf Blower Kit |  |
WORX WG170 GT Revolution 20V 12" 3-in-1 Cordless String Trimmer
| Power Source | Battery Powered |
|---|---|
| Cutting width | 12 inches |
| Speed | 7600 rpm |
| Number of Batteries | 2 Lithium Ion batteries required. (included) |
The WORX WG170 GT Revolution is a versatile battery-powered tool that serves as a string trimmer, in-line wheeled edger, and a small-area mini-mower. It is typically used for routine yard cleanup, precision edging along sidewalks and beds, and finishing strips that a full-size mower cannot reach. Notable features include a patented Command Feed button that advances fresh line without bumping, a seven-position adjustable handle for comfortable use, and twin support wheels for steady, accurate edging. The included two 20V batteries let you work through a typical quarter-acre yard without swapping brands, and the 12-inch cutting width and 7600 rpm motor provide effective cutting for small to medium lawns. Practical benefits are reduced fatigue from the 5.5 lb weight and easier, neater edges thanks to the wheeled guide and pivoting head. Limitations are typical of compact 20V tools: the 12-inch cutting swath and 2.0Ah batteries mean it is not ideal for heavy brush or large properties and run time is shorter than higher-voltage cordless models.
Best for: Buyers who want one compact tool to handle regular trimming and precise edging around a small to medium yard and who value convenience and low fatigue over raw power.
Less Ideal for: Homeowners with large acreage, dense overgrowth, or frequent heavy-duty clearing needs should consider higher-voltage or dedicated landscaping equipment instead.
- Three-function design converts quickly between trimmer, wheeled edger, and mini-mower for versatile yard work.
- Command Feed automatic line advance speeds work by adding fresh line at the push of a button.
- Lightweight 5.5 lb body and adjustable handle reduce user fatigue during longer edging or trimming sessions.
- Includes two 20V PowerShare batteries and charger so you can finish small-to-medium lawns without buying extras.
- 12-inch cutting width and 2.0Ah batteries limit continuous run time and make it unsuitable for heavy-duty clearing.
- Not designed for thick brush or very large lawns where higher-voltage or gas models perform better.
Verdict: Choose this if you want a lightweight, multi-function trimmer that makes clean edging and quick small-area mowing easy.
DEWALT 20V Cordless String Trimmer and Blower Combo (DCKO215M1)
| Power Source | Hand_powered |
|---|---|
| Cutting width | 13 inches |
| Number of Batteries | 1 Lithium Ion (included) |
This DEWALT 20V cordless combo brings a trimmer and blower together into a single kit aimed at homeowners who want reliable, battery-powered yard tools. The string trimmer offers a 13-inch cutting width for edging and clearing grass around beds and walkways, while the included blower handles light debris cleanup. It runs on a 20V lithium ion battery so you get cordless convenience and predictable runtime for routine maintenance. The kit’s cordless design makes it easy to move around the yard without dealing with cords or gas mixing, and the trimmer is well suited to tight areas where a mower cannot reach. Expect practical benefits like quieter operation than gas tools, low vibration, and simple one-battery compatibility across DEWALT 20V tools. Limitations are that the listed specs focus on basic use rather than heavy commercial jobs, so very dense or overgrown vegetation may require a more powerful brushcutter or a higher-voltage system, and runtime for larger lawns will depend on battery capacity which is not detailed in the product information.
Best for: Buyers who prioritize dependable, cordless performance for routine lawn care and want a compact combo that handles trimming and light debris cleanup without gas or cords.
Less Ideal for: Professionals or homeowners with large properties and frequent heavy cutting needs should consider higher-voltage or commercial-grade equipment instead.
- Includes a 20V lithium ion battery for cordless convenience and ready use
- 13-inch cutting width handles edging and most standard trimming tasks
- Combo includes both a trimmer and a blower for basic yard maintenance
- Cordless operation reduces noise and vibration compared with gas tools
- Designed for routine residential use and may struggle with very thick brush or heavy-duty clearing
- Battery runtime and charge details are not specified in the product information
Verdict: A practical 20V trimmer and blower combo that delivers cordless, dependable performance for routine residential trimming and cleanup.
BLACK+DECKER 20V MAX 12" Cordless String Trimmer and Edger (LST300)
| Power Source | Battery Powered |
|---|---|
| Cutting width | 12 inches |
| Speed | 6200 rpm |
| Number of Batteries | 1 Lithium Ion (included) |
The BLACK+DECKER LST300 is a compact, battery-powered 2-in-1 string trimmer and wheeled edger designed for routine yard maintenance and edging tasks. It uses a 20V Powerconnect lithium-ion battery (included) and a PowerDrive transmission to deliver higher torque at the cutting head, while a 12-inch cutting swath makes it easy to navigate around garden beds and sidewalks. The automatic feed spool keeps line length correct without bumping, and adjustable height plus a textured handle improves comfort for longer sessions. Because it is cordless and lightweight it starts quietly and avoids the fuss of gas tools, and the included wall-mountable charger simplifies storage. Expect solid performance on standard grass and moderate overgrowth; however the 12-inch head and single included 2.0 Ah battery limit runtime and may require slower passes or a second battery for large yards or very thick weeds. For homeowners focused on convenience and everyday trimming, this model balances ease of use with enough cutting power for typical light-to-moderate jobs.
Best for: Homeowners who want an easy-to-use, low-noise cordless trimmer for regular lawn touch-ups and clean edging around sidewalks and beds and who value simplicity and proven performance.
Less Ideal for: Those with several acres, dense brush, or frequent heavy clearing needs should look at higher-voltage cordless or gas-powered trimmers instead.
- Converts quickly between string trimmer and wheeled edger for two common tasks
- Automatic Feed Spool (AFS) keeps line fed without bumping
- PowerDrive transmission increases torque for stronger cutting at the head
- Lightweight with adjustable handle and height for comfortable use
- Includes 20V lithium-ion battery and charger so it is ready to use out of the box
- 12-inch cutting swath and single 2.0 Ah battery limit runtime and may be slow on large yards or very thick weeds
- Not suited for heavy-duty brush cutting compared with more powerful gas or higher-voltage cordless models
Verdict: A lightweight, easy-to-use 2-in-1 cordless trimmer that is ideal for everyday light-to-moderate lawn trimming and edging tasks.
LMZTCYA Cordless Electric String Trimmer with 2×2000mAh Batteries and Multi-Tool Blades
| Power Source | Battery Powered |
|---|---|
| Cutting width | 12 inches |
| Speed | 18000 rpm |
| Number of Batteries | 2 Lithium Ion (included) |
This LMZTCYA cordless string trimmer is built for straightforward yard work, combining an 880W motor that spins up to 18,000 RPM with two 2000mAh lithium batteries and a fast charger to minimize downtime. It is typically used for trimming lawn edges, cutting through thicker weeds, and light brush clearing; the kit ships with three blade types (saw, stainless steel, plastic) so you can switch depending on the job. The telescoping shaft and 90° adjustable head make it easier to reach edges and under shrubs with less bending, and the double-switch safety helps prevent accidental starts. Practical benefits include cordless freedom, a generous accessory pack that includes gloves and goggles, and the alternating battery setup that keeps you working while one battery charges. Important limitations are that it is a lightweight consumer tool rather than a commercial unit and the advertised 12-inch cutting width and runtime will vary with blade choice and dense vegetation. Expect solid performance for home yards but not the continuous heavy-duty work a professional gas unit would handle.
Best for: Buyers who want a reliable, no-fuss cordless trimmer for regular home lawn maintenance and occasional brush cutting, valuing uptime and versatility over commercial-grade durability.
Less Ideal for: Landscapers or users who need continuous all-day operation or to tackle very large properties should consider a professional gas or higher-end battery system instead.
- Powerful 880W motor with up to 18,000 RPM for cutting thicker weeds
- Includes two 2000mAh batteries plus fast charger to reduce downtime
- Multiple blade types (saw, stainless steel, plastic) for versatile tasks
- Adjustable shaft and 90° head improve access to edges and undergrowth
- Comes with safety gear and a full accessory set for immediate use
- Designed for homeowner use so not suited for prolonged professional heavy-duty workloads
- Actual runtime and cut performance depend heavily on blade selection and vegetation density
Verdict: A dependable, feature-rich cordless trimmer that maximizes runtime and versatility for budget-conscious homeowners who prioritize reliable, ready-to-use yard tools.
ALSO GO 21V Cordless Electric Weed Wacker with 12" Cutting Swath and 2×2.0Ah Batteries
| Power Source | Battery Powered |
|---|---|
| Cutting width | 12 inches |
| Speed | 9500 rpm |
| Number of Batteries | 2 (included) |
This ALSO GO 21V cordless weed wacker is designed for straightforward yard maintenance, combining a 9500 rpm motor, 12 inch cutting swath, and two 2.0Ah batteries to handle routine trimming and edging around a small to medium yard. It converts from trimmer to edger by rotating the head 90 degrees and allows vertical adjustment for slopes and corners, which makes precise edge work easier without switching tools. The automatic line feed advances the 1.4mm line as it wears, reducing stops to reload, and the package includes ten spare spools so you can keep going. At roughly five pounds and with an adjustable auxiliary handle, it is easy to maneuver and causes less fatigue during longer sessions. Important limitations are modest battery capacity compared with higher-end cordless models and a 12 inch cutting width that is ideal for light to moderate growth but will require more passes on very dense or overgrown areas. The unit is practical for everyday lawn upkeep where ease of use and low weight matter more than professional-level runtime or heavy-duty cutting power.
Best for: Best for seniors or anyone who prioritizes a lightweight, easy-to-handle trimmer for regular lawn maintenance and precise edging around walkways and garden beds.
Less Ideal for: Not a great choice for users who need long continuous runtime or who regularly trim very dense, overgrown brush on large properties.
- Lightweight design eases handling and reduces operator fatigue
- Includes two 2.0Ah batteries and a fast charger for quick swap-and-go use
- Automatic line feed with spare spools minimizes interruptions for reloading
- 2-in-1 trimmer and edger head plus vertical adjustment improves precision on edges and slopes
- 12 inch cutting width balances control and coverage for typical yard tasks
- Battery capacity is modest so continuous runtime may be limited on larger yards
- 12 inch cutting swath and 2.0Ah batteries are not optimal for very dense or overgrown vegetation
Verdict: A lightweight, easy-to-use cordless trimmer with automatic line feed and included batteries that makes routine trimming and edging simple for seniors and casual users.
WORX 20V 12" 2-in-1 Cordless String Trimmer & Lawn Edger (WG163)
| Power Source | Battery Powered |
|---|---|
| Cutting width | 12 inches |
| Speed | 7600 rpm |
| Number of Batteries | 2 Lithium Ion batteries required. (included) |
The WORX WG163 is a compact 2-in-1 cordless string trimmer that converts quickly to a wheel-guided edger for straight, clean borders. It uses a Command Feed spool so you only advance line when you want to, and the head tilts 90 degrees to reach slopes and tight areas. Rubberized support wheels help guide edging for consistent results and the adjustable spacer guard protects flowers and landscaping during trimming. Included with the tool are two 20V PowerShare batteries and a charger, which makes it ready to work on small to medium yards and lets you swap batteries across other WORX 20V tools. At about 5.5 pounds it is easy to maneuver and less fatiguing for longer sessions. Limitations to consider are the modest 12-inch cutting swath and single-speed motor, so it is not the fastest option for very large properties or heavy brush. The Command Feed system reduces bump-feed interruptions but you will still need to keep replacement line on hand for sustained use.
Best for: Buyers who want a lightweight, easy-to-use 2-in-1 trimmer and edger for small to medium lawns and value included batteries and proven features backed by many user reviews.
Less Ideal for: Not well suited for homeowners with large acreage, dense brush, or who need variable-speed power for heavy-duty cutting tasks.
- Converts quickly between trimmer and wheel-guided edger for two tools in one
- Command Feed spool provides on-demand line advance without bumping
- Two 20V PowerShare batteries included so you can work longer and use batteries across other WORX tools
- 90° tilting head and adjustable spacer guard improve access and protect plants
- Lightweight design eases fatigue during extended use
- 12-inch cutting width and single-speed motor limit efficiency on large yards or thick vegetation
Verdict: Choose the WORX WG163 if you want a lightweight, battery-ready 2-in-1 trimmer and edger that is easy to use and works well on small to medium lawns.
WORX WG928 20V 12" Cordless Trimmer & 360 CFM Leaf Blower Kit
| Power Source | Battery Powered |
|---|---|
| Cutting width | 12 inches |
| Speed | 75 miles_per_hour |
| Number of Batteries | 1 Lithium Ion batteries required. (included) |
The WORX WG928 combo gives homeowners a practical, low-hassle setup for routine yard care by combining a 12" string trimmer that converts to a wheeled edger with a turbine-style leaf blower. The trimmer uses a command-feed system to advance line on demand so you do not have to bump the head, and the pivoting trimmer head makes switching to edging fast and tool-free. The blower produces up to 360 CFM with two speed settings, which is enough to clear clippings and dry leaves from patios, sidewalks, and driveways. Both tools are battery powered and come with two 20V batteries and a charger, letting you finish small- to medium-size jobs without running cords or gas. Practical benefits include lighter weight for easier handling and compatibility with WORX PowerShare batteries if you already own other WORX tools. Limitations to note are the 12" cutting width, which makes the trimmer less efficient on very large properties, and the blower is best suited for light-to-moderate debris rather than heavy wet leaves or professional cleanup jobs.
Best for: Homeowners who want a reliable, easy-to-use cordless combo for routine trimming, edging, and blowing around yards, patios, and walkways without dealing with gas engines or complicated tools.
Less Ideal for: Landscapers, large-property owners, or anyone who regularly needs heavy-duty blowing or very fast wide-area trimming should consider higher-capacity or professional-grade equipment.
- Two-tool kit (trimmer that converts to edger plus blower) covers common yard tasks
- Command Feed line system supplies fresh cutting line on demand to reduce interruptions
- Includes two 20V batteries and charger for immediate cordless use out of the box
- Blower offers two-speed control and up to 360 CFM for directing debris where you want it
- Works with the WORX PowerShare platform for cross-tool battery compatibility
- 12-inch cutting width is best for small to medium yards and slows progress on larger properties
- Blower performance is geared to light-to-moderate debris and may struggle with heavy wet leaves
Verdict: A practical cordless trimmer and blower combo that gives risk-averse homeowners an easy, ready-to-use solution for routine yard maintenance.
Choosing the Right Cordless Garden String Trimmer: Key Factors to Consider
Battery Capacity and Compatibility
Battery capacity directly determines how long a cordless string trimmer will run before you need to recharge. Higher amp-hour ratings usually translate to longer continuous use, but actual runtime depends on cutting load and motor efficiency. Consider whether batteries are interchangeable with other yard tools you own; shared-format batteries simplify charging and reduce the number you need to keep on hand.
Fast-charging options and spare battery availability affect how productive you can be on larger jobs. If you have a lot of edging or dense grass, plan for at least one spare battery or a higher-capacity pack to avoid interruptions.
Cutting System and Line Management
Cutting width and how line is fed or replaced determine how quickly you can finish a job and how often you must stop for maintenance. A wider cutting swath covers more area per pass, but very wide heads demand more battery power and can be harder to control near obstacles. Straight or curved-shaft designs influence head speed and maneuverability.
Spool refill ease, bump-feed versus automatic advance, and the availability of thicker or specialty line all matter for ongoing performance. Choose a system you can reload quickly with basic tools if you plan to do your own maintenance.
Ergonomics and Handling
Because trimming often involves extended hand-held use and awkward angles, balance and weight distribution are crucial. Lighter units reduce fatigue but may transfer more vibration to your arms. Adjustable shafts, pivoting heads, and auxiliary handles let you tailor fit for height and posture, improving comfort and control.
Consider how the on/off controls and safety features fit your grip and whether the unit can be used comfortably for edging, trimming around beds, and clearing under low branches.
Build Quality and Weather Resistance
A trimmer spends time close to wet grass, soil, and debris. Corrosion-resistant components, sealed electrical housings, and robust guard attachments extend service life. Plastics should be impact-resistant around the head and guard because those areas take knocks during routine use.
Inspect how well fasteners and motor mounts are protected from grit. Units designed for light rain exposure and with serviceable parts will age better than cheaper assemblies that crack or let moisture into battery compartments.
Maintenance and Serviceability
Routine upkeep includes replacing spool line, cleaning clippings from the guard, and occasionally tightening fasteners. Designs that allow quick head access, use common replacement spools, and provide clear line-winding instructions reduce downtime and frustration. Battery terminals should be easy to inspect and clean.
Also consider availability of replacement parts such as guards, spools, and drive shafts. A model that is straightforward to disassemble for cleaning or minor repairs avoids trips to a service center and keeps the tool productive through multiple seasons.
Choosing Between Straight and Curved Shafts
Straight shafts offer extended reach and are typically better for standing trimming and edging around larger lawns while curved shafts often weigh less and provide improved low-angle control for close-in work. Think about the common tasks you do: standing edging, under-bush trimming, or reaching into tight corners.
If you frequently work on slopes or need max reach without stooping, a straight shaft might be the better choice. For light yard work and frequent bending into flower beds, a curved or compact shaft can save wrist strain and make maneuvering easier.
- Straight shafts: better reach and leverage for taller users
- Curved shafts: lighter and easier for low-cut trimming
- Adjustable-angle heads: add versatility without swapping tools
Understanding Run Time in Real Conditions
Manufacturers quote run times under standard conditions, but dense grass, thicker line, and wider cutting paths will shorten battery life. Expect significant variation between light edge work and heavy patch clearing.
Plan battery strategy based on job size. For short routine edging, a single medium-capacity pack may suffice. For longer sessions, either use a higher-capacity battery or carry a fresh spare to avoid mid-task stoppages.
- Light trimming uses far less power than cutting through heavy weeds
- Wider heads drain batteries faster but reduce passes needed
- Lower line diameter conserves power but may struggle with thick growth
Noise, Vibration, and User Comfort
Cordless trimmers are generally quieter than gas models, but motor type and speed still affect sound and vibration. If you work in close neighborhoods or on small properties, choose a model with lower noise output and vibration-dampening features.
Assess grips, shoulder straps, and handle cushioning. Even modest reductions in vibration and improved handle ergonomics can make a noticeable difference during 30-minute sessions.
- Brushless motors often run smoother and with less vibration
- Padded handles and anti-vibration mounts reduce fatigue
- Consider hearing protection for extended use
Line Types and When to Upgrade
Line comes in various diameters and cross-sections. Thicker, twisted, or serrated lines cut tougher weeds but require more motor power and reduce runtime. Thinner lines conserve battery life and are fine for regular lawn touch-ups.
Upgrade line only when you need the extra cutting bite for persistent weeds or light brush. For most residential lawns, a medium-diameter standard line balances performance and efficiency.
- Standard round line: good for general grass
- Twisted or serrated line: better for heavy weeds
- Check head compatibility before buying specialty line
Storage, Winterizing, and Battery Care
Proper storage extends both the trimmer and battery lifespan. Remove batteries for long-term storage, keep them partially charged rather than dead, and store in a cool, dry place away from direct sunlight. Clean clippings and dirt from the unit before storing to prevent corrosion.
If you store the trimmer over winter, inspect seals and moving parts before putting it back into service. Recharge and cycle batteries periodically during dormant months to preserve capacity.
- Store batteries at recommended charge levels
- Keep the head and guard free of compacted debris
- Inspect seals and fasteners before the first spring use
How We Chose the Best Cordless Garden String Trimmer
We focused on features that matter when you actually use a cordless garden string trimmer in a yard, patio, or small acreage. Key evaluation criteria included battery capacity and real-world run time under light to moderate load, motor and cutting system efficiency as measured by consistent line feed and cutting width, ergonomic handling and weight distribution for comfortable extended use, build durability and weather resistance for season-to-season reliability, and maintenance ease for line replacement and cleaning. We also considered accessory compatibility such as adjustable shafts and guard options that expand functionality. We excluded heavy-duty gas models and corded electric units because they fall outside the cordless scope. We left out products lacking clear battery specifications or with consistently poor user reports on durability. The resulting shortlist favors tools that strike a practical balance between runtime, cutting ability, and user comfort for typical residential gardening tasks.
FAQ
How long will a typical cordless string trimmer run on one battery?
Run time often depends on battery capacity, cutting head width, and vegetation density. Light edging can last 30 to 60 minutes on a mid-capacity pack, while heavy brush cutting can reduce that to under 20 minutes. Expect real-world times to vary and plan for a spare battery if you have larger areas to cover.
Can I use the same battery for other yard tools?
Many manufacturers use battery platforms that are compatible across multiple tools. Using a shared battery format lets you swap packs between a trimmer, blower, or mower, reducing the number you need to keep charged. Confirm compatibility before assuming interchangeability.
Is bump-feed line better than automatic feed systems?
Bump-feed heads are simple and allow on-the-fly line advance but require a tap on the ground to feed more line. Automatic or tapless systems advance line without contact, which is convenient but can add mechanical complexity. Both work well; choose based on your tolerance for occasional reloading and repair complexity.
How do I decide between a brushless and brushed motor?
Brushless motors are typically more efficient, run cooler, and can extend battery runtime compared with brushed motors. They also tend to have longer service life. For frequent or heavier-duty use, a brushless motor is usually the better investment, while brushed motors can suffice for occasional light trimming.
What maintenance does a cordless trimmer require?
Regular tasks include clearing grass buildup from the guard, replacing spool line, checking for loose fasteners, and keeping battery terminals clean. Periodic inspection of the guard and shaft for cracks or wear helps avoid bigger repairs. Routine care keeps the tool reliable and extends its service life.
Final Verdict
Prioritize battery runtime, cutting system efficiency, and ergonomics when selecting a cordless garden string trimmer. Expect tradeoffs between wider cutting widths that reduce passes and higher power draw that shortens runtime. Durable construction and easy maintenance are worth choosing when you want a tool that lasts through multiple seasons. Decide based on the size and type of trimming you do most often: for routine edging on a small lawn, choose lighter units with moderate battery packs; for longer sessions or heavier growth, prioritize higher-capacity batteries and sturdier cutting heads. That approach will deliver the best balance of productivity and comfort.
