Specs are compiled from manufacturer listings and verified buyer reviews and can change over time — please confirm the key details on the product page before buying.
If you are tired of yanking a starter cord (that pull-rope on a gas engine), mixing gas and oil, or wrestling a heavy machine that vibrates your arms numb, a modern cordless string trimmer fixes every one of those frustrations with a squeeze of a trigger. The trick is picking the one that actually has the torque (the twisting force to cut) to chew through your overgrowth without dying on you halfway across the yard.
I’m Mohammad Maruf — the founder and writer behind WellFizz. This guide is built by comparing the manufacturers’ published specifications and the patterns across verified customer reviews, so you get each pick’s real strengths and trade-offs instead of marketing spin.
Finding the right cordless string trimmer depends on matching battery voltage (the electrical pressure, 24V to 60V), cutting width (the path it clears in one pass), and weight to the actual work you do each week.
Quick Picks
- Milwaukee 2825-20ST 18V Cordless Brushless String Grass Trimmer with Attachment Capability (Tool-Only) — Top Performer
- Greenworks 60V 16 Inch Brushless Cordless String Trimmer, with 2.5Ah Battery & Charger — Best Overall
- Husqvarna WeedEater 320iL Cordless String Trimmer with 4 Ah Battery and Charger, 16-Inch — Smooth Operator
- Makita XRU12SM1 18V LXT Lithium-Ion Brushless Cordless String Trimmer Kit (4.0Ah) — Precision Pick
- WORX 3 in 1 Cordless String Trimmer/Lawn Edger/Mini Mower, 13″ Electric Weed Wacker with Command Feed, 20V Brushless, 4.0 Ah Battery & Charger — 3-in-1 Champ
- Greenworks 24V Cordless String Trimmer/Edger (Gen 2), 12″ Cutting Width, Ultra-Light 6 lbs Design, with 2.0Ah Battery & Charger — Budget Champion
How To Choose The Best Cordless String Trimmer
Picking a cordless trimmer is simpler than it looks if you focus on three things — the battery, the cutting width, and how much the whole tool weighs. The right balance varies depending on the size of your yard and the kind of grass or weeds you tackle.
Battery Voltage Dictates Cutting Power
The higher the voltage (the electrical pressure), the more torque (the twisting force) the motor can deliver. A 60V trimmer will slice through thick brush that a 24V model would bog down in. If you routinely cut tall weeds or vines, aim for a 40V or 60V platform. For light grass around a small yard, a 24V is plenty and costs significantly less.
Cutting Width Determines Speed
Wider cutting swaths (the path cleared in one pass) — 16 inches versus 12 inches — mean fewer passes along a fence line or driveway. That extra width saves noticeable time on larger properties. The trade-off is that a bigger head is slightly less maneuverable around flower beds and tight corners.
Weight Affects Fatigue
A trimmer that weighs 12 pounds will wear you out faster than one that weighs 5 pounds, especially if you have an acre or more to cover. Look for models around 5 to 7 pounds if you want to trim comfortably for longer sessions. Heavier trimmers are usually more powerful, so match the weight to how long you actually plan to work.
Quick Comparison
| Model | Best For | Cutting Width | Weight | Battery Voltage | Amazon |
|---|---|---|---|---|---|
| Greenworks 24V (Gen 2) | Small yards & beginners | 12 Inches | 5.2 Pounds | 24V | Amazon |
| WORX WG173 Nitro | Versatility (3 tools in 1) | 13 Inches | 6.6 Pounds | 20V | Amazon |
| Greenworks 60V | Heavy brush & large yards | 16 Inches | 11.2 Pounds | 60V | Amazon |
| Milwaukee 2825-20ST | Professional-grade power | 16 Inches | 12.7 Pounds | 18V (High Output) | Amazon |
| Makita XRU12SM1 | Precision trimming & balance | — | 11.97 Pounds | 18V LXT | Amazon |
| Husqvarna 320iL | Quiet, ergonomic operation | 16 Inches | 7 Pounds | 40V | Amazon |
In‑Depth Reviews
1. Milwaukee 2825-20ST 18V Cordless Brushless String Grass Trimmer with Attachment Capability (Tool-Only)
A pro-grade gas replacement that an 18-year pro says equals gas trimmer performance.
This is the one you reach for when you need to clear thick brush all day long. Its brushless motor (an efficient motor with no brushes to wear out) delivers 0 to 6200 RPM (spins per minute), and the cutting swath (the path it clears) adjusts from 14 to 16 inches so you can dial in the width for the job. Heavier than the lighter Greenworks models, this trimmer weighs 12.7 pounds compared to the 5.2-pound Greenworks 24V — that heft comes from the beefier motor and build quality that pros rely on. Buyers report that a 12.0 battery barely drained after three to four lawns a day for three days, with 75% left, so runtime is serious.
One important thing to know: this is tool-only, so you need to buy a Milwaukee battery and charger separately, which adds upfront cost. The guard (the shield that deflects debris) does not stop all flying debris either, so wearing long pants and goggles is a real necessity — one reviewer noted getting hit more than once. But if you already own Milwaukee M18 batteries, this is the clear choice for heavy work.
It also has attachment capability (you can connect a blower, edger, or hedge trimmer head later) and uses the same power head.
Power you can feel: The motor runs at up to 6200 RPM and chews through overgrown weeds that stall lower-voltage trimmers. Reviewers confirm it outperforms all other brands they tested.
Weight trade-off: At 12.7 pounds, it is noticeably heavier than the competition. If you have a small yard or limited strength, the Greenworks 60V at 11.2 pounds is a more manageable option.
Who it is for: Professional landscapers, heavy-brush clearers, and anyone already on the Milwaukee M18 battery platform who wants gas-equivalent power without the gas.
One real limitation: The tool-only price is high, and adding a battery and charger pushes the total well into premium territory. It also requires assembly (you must attach the handle and guard), so factor in a few minutes of setup.
2. Greenworks 60V 16 Inch Brushless Cordless String Trimmer, with 2.5Ah Battery & Charger
60V power that rivals the Milwaukee Fuel for a fraction of the price.
This trimmer delivers a stunning balance of power and value. Its 60V brushless motor spins at 6000 RPM and is equivalent to a 26cc gas trimmer (a 26 cubic centimeter engine) — enough to slice through 1-inch thick blackberry vines, according to the maker. With a 16-inch cutting width, it clears a two-mile fence line faster than the 12-inch Greenworks 24V. Owners mention it is powerful enough to rival the Milwaukee 18V Fuel, and the 60V 4Ah battery outlasts the Milwaukee 8Ah, which is a remarkable claim for a trimmer at this price point.
The battery average life is 65 minutes versus the 30-minute runtime of the smaller Greenworks 24V model. That means you can trim a typical suburban yard on a single charge without rushing. At 11.2 pounds with the battery, it is lighter than a toddler, and the 360-degree rotating handle (a handle that spins all the way around) reduces wrist strain significantly — one reviewer called it “grandma-approved” for flower bed detailing.
The spin-to-load head (you twist the head to load the line) lets you reload.095-inch line (0.095 inches thick) in about 10 seconds, which saves a good 15 minutes compared to traditional bump feed heads (which you tap on the ground). One caveat from a buyer: long grass can jam in the spindle gap (the space where the head spins), especially with common reed. Also, some users noted that the line cutter on the guard (the shield) was installed backwards and needed a quick fix.
Why it stands out
- 65-minute runtime beats most competitors in this price range
- Spin-to-load head is genuinely fast and frustration-free
- 16-inch cutting width with dual-line system chews through thick weeds
- Comes with battery and charger — ready to work from the start
Things to watch
- Weighs 11.2 pounds — heavier than the 5.2-pound Greenworks 24V, so not ideal for very long sessions if you are smaller
- Long grass can jam in the spindle gap, requiring occasional clearing
Best all-rounder: If you want pro-level power with a 2.5Ah battery and charger included at a mid-range price, this is the pick. It handles heavy brush and large yards without the wallet shock of the Milwaukee.
skip it if: You need the absolute lightest tool for a small, flat lawn — the Greenworks 24V (Gen 2) at 5.2 pounds is a better fit there.
3. Husqvarna WeedEater 320iL Cordless String Trimmer with 4 Ah Battery and Charger, 16-Inch
A featherlight 7-pound trimmer with a faster cutting speed.
If you prioritize comfort and quiet operation, this Husqvarna is a standout. At 7 pounds, it is much lighter than the Milwaukee 2825-20ST at 12.7 pounds. That makes a huge difference when you are trimming for an hour. The 40V lithium-ion battery delivers sufficient power for moderate residential use — customers note about an hour of trimming on 50% battery, which is solid for a weekly edge-up.
It features a Power Boost mode for tough spots when you hit a patch of heavy grass or thick weeds. The Dual-Direction trimmer head (you can flip the head to throw clippings left or right) lets you change the direction of the cut, so you can keep clippings off garden beds and hardscapes. One buyer mentioned that the build quality is excellent and the operation is much quieter than competitors — a real plus if you have close neighbors or want to trim early in the morning.
The catch reported by several buyers: the stock trimmer head and string feeder can jam frequently. One owner reported the pole is also a bit loose, and aftermarket head upgrades (a replacement head you buy separately) require modifications. It comes as a full kit with battery and charger, so you are ready to go immediately, and the 40V battery is compatible with all Husqvarna 40V handheld tools.
Great for light-to-medium work: At 7 pounds with a 16-inch cutting width and Power Boost mode, this handles a typical suburban lot comfortably and quietly. Reviewers point out it balances well and is easy to maneuver around flower beds.
Stock head needs an upgrade: The string feeder jams enough that multiple owners recommend swapping the head for an aftermarket one, which adds cost and effort.
Reach for this if: You want the lightest, quietest trimmer that still offers a 16-inch cutting width and a full battery kit. It is ideal for homeowners who care about comfort and noise.
Consider something else if: You need to clear thick brush routinely or want a bulletproof stock string feed system — the Greenworks 60V or Milwaukee are more reliable there.
4. Makita XRU12SM1 18V LXT Lithium-Ion Brushless Cordless String Trimmer Kit (4.0Ah)
A well-balanced trimmer with three speed settings and Automatic Torque Drive for extended runtime.
Makita brings precision to the table. This trimmer has a 3-speed control (Low at 4000 RPM, Medium at 5000 RPM, and High at 6000 RPM) so you can dial the power exactly to the task. The Automatic Torque Drive Technology (it shifts RPM automatically) gives you more runtime when you do not need full power. It comes with a bump and feed trimmer head (tap it on the ground to release line) loaded with 0.080-inch twisted quiet line (line that is twisted, not straight, to reduce noise), which keeps noise down compared to standard line.
Shoppers say that it is well-designed and balanced, making it comfortable for longer sessions. One reviewer cleared half an acre of tall grass on a single charge, running on medium speed, and got around 35 minutes of runtime. Another noted that the reverse button works great for clearing jams. At 11.97 pounds, it is comparable to the Greenworks 60V (11.2 pounds) but offers more speed control finesse.
One common complaint: runtime is shorter than some competitors. Several buyers report 25 to 30 minutes of runtime per 90-minute charge, which Makita confirmed as normal. That might be tight if you have a larger property. Also, some noted the trimmer head capacity is small, so you reload line more often. Assembly instructions can be unclear — one customer observed that the locking collar (the ring that secures the shaft) was not mentioned, causing a brief confusion during setup.
Strengths
- 3-speed control lets you match power to the task, saving battery on light weeds
- Well-balanced design that feels solid without being cumbersome
- Comes as a kit with 4.0Ah battery and charger
- Quiet operation with twisted line
Weaknesses
- Runtime of 25-35 minutes per charge is shorter than the Greenworks 60V’s 65 minutes
- Small trimmer head capacity means more frequent line reloads
- Some assembly instruction gaps
Ideal for precision work: If you value speed control and balance for edging and light trimming, the Makita delivers a polished experience. It is great for smaller to medium lawns where 30 minutes is enough.
Not for heavy brush or long sessions: The runtime is limiting for larger properties, and the smaller line capacity means more stops. The Greenworks 60V or Milwaukee are better for sustained heavy work.
5. WORX 3 in 1 Cordless String Trimmer/Lawn Edger/Mini Mower, 13″ Electric Weed Wacker with Command Feed, 20V Brushless, 4.0 Ah Battery & Charger
The lightest way to trim, edge, and mow with one tool and a push-button line feed.
This WORX is the chameleon of the group — it switches between a string trimmer, a wheeled edger, and a mini mower without needing any adapters or extra parts. At 6.6 pounds, it is lighter than the Makita at 11.97 pounds and the Greenworks 60V at 11.2 pounds, yet it boasts a brushless motor that the company claims runs longer and is more powerful than standard brushed motors (older motor technology with brushes that wear out). The 13-inch cutting diameter with dual-line design helps you cover more ground per pass.
The standout feature here is the patented Command Feed (you press a button on the handle to advance the line) — you press a button to advance the line instead of bumping the head on the ground. That means you stay in control of how much line you use, and you are not accidentally feeding line when you tap the head. Owners mention that this thin line is very strong and rarely jams, though some noted that the supplied trimmer line breaks or fuses (melts together), and off-brand line actually works better.
A few quirks worth noting: the flower guard (a shield for plants) shown in product images is not included with the US version and cannot be purchased separately. Also, one reviewer warned that leaving the battery in the plugged charger drains it to zero over about 18 days, so take the battery off the charger when it is full. But overall, it is a versatile, lightweight option that a 5-foot-2-inch reviewer said she could handle like a pro.
Versatility at a low weight: Switching from edging to trimming to mowing takes seconds, and at 6.6 pounds, it is comfortable for most users. The 90-degree pivoting head and telescopic shaft (shaft that extends) add control on hills and tight areas.
Minor issues with line and charger: The stock line can fuse, and the charger drains the battery if left plugged in. Both are manageable with aftermarket line and a simple habit of unplugging.
Best for homeowners who want one tool for multiple jobs: If you have a small to medium yard and want to trim, edge, and mow tight spots without buying separate tools, the WORX delivers. It is also a great choice for smaller users due to the low weight.
Look elsewhere if you need raw power: The 20V battery means it cannot compete with the 60V Greenworks or the Milwaukee for heavy brush. Stick to light weeds and regular grass maintenance.
6. Greenworks 24V Cordless String Trimmer/Edger (Gen 2), 12″ Cutting Width, Ultra-Light 6 lbs Design, with 2.0Ah Battery & Charger
A 5.2-pound trimmer that smaller and older users can handle without fatigue.
This is the entry point into cordless trimming done right. At 5.2 pounds, it is the lightest trimmer in this lineup, compared with the Milwaukee at 12.7 pounds, and features a telescoping aluminum shaft (a shaft that extends) that adjusts to fit users from 4-foot-8 to 6-foot-5. That means a teenager or a senior can use the same tool comfortably without bending or straining. The 90-degree rotating head (turns the head sideways) lets you edge along sidewalks and around tree roots without twisting your wrist.
The 2-in-1 design switches from trimming to edging with one button, no tools required. With a 12-inch cutting width, it is best suited for smaller yards — you will make more passes than with the 16-inch models, but the low weight makes those passes easy. Customers note that it aggressively cuts overgrown edges, and the string lasts months. One user highlighted that the auto-feed (a system that releases line automatically) on the spool failed for them, which is a common complaint on budget auto-feed heads. Another mentioned that battery life degraded after three uses, though other users found the small 2.0Ah battery (a 2.0 amp-hour battery, which measures how much energy it stores) sufficient for a 30-minute session.
The battery average life is 30 minutes, so you will want to have a second battery if your yard takes longer. It is also quite quiet at 75 dB (decibels — a unit for sound level), which is quieter than a vacuum cleaner and compliant with HOA (Homeowners Association) noise rules. The 24V battery works with over 150 Greenworks 24V tools, so you can build a cordless toolkit around the same platform.
What works
- Ultra-light at 5.2 pounds — best for smaller users or those with limited strength
- Telescoping shaft fits a wide range of heights
- 2-in-1 trimmer and edger with tool-free switching
- Very quiet operation at 75 dB
What to watch
- Only 30-minute runtime per charge; may need a second battery for larger yards
- Auto-feed system can be unreliable — some users had to manually restring frequently
- 12-inch cutting width means more passes than wider models
Perfect for small yards and new users: If you have a compact lawn, want something anyone in the family can lift, and want to stay under budget, this Greenworks is a solid starter. The 5.2-pound weight and adjustable shaft are genuinely useful for smaller homes.
Avoid it if you have thick brush or a large property: The 24V motor and 30-minute runtime will frustrate you on heavy weeds or if your yard takes more than half an hour. Step up to the 60V Greenworks for real power.
Understanding the Specs
Voltage and Motor Type
The voltage of the battery (24V, 40V, 60V) directly determines how much cutting power the motor can deliver. Higher voltage trimmers can spin thicker line faster and cut through dense weeds without bogging down. A brushless motor is more efficient — it runs cooler, lasts longer, and gives you more runtime per charge than a brushed motor (an older motor technology with carbon brushes that wear out). All six trimmers here use brushless motors, which is the standard to look for.
Cutting Width and Line Diameter
The cutting width (12 to 16 inches) tells you how wide a path you clear with each swing. A wider swath means fewer passes along a fence or driveway, which saves time on larger properties. The line diameter (0.065 to 0.095 inches) affects durability — thicker line handles heavier weeds but may require a more powerful motor to spin it effectively. Thinner line is quieter and fine for regular grass.
Weight and Balance
Weight ranges from 5.2 pounds to 12.7 pounds in this list. A lighter trimmer is easier to maneuver and causes less fatigue during long sessions, but heavier models usually have more powerful motors and bigger batteries. Balance matters too — a well-balanced trimmer feels lighter than its actual weight because the weight is distributed properly along the shaft. Always consider how long you will be trimming at once.
Feed System Types
There are three main ways the trimmer line advances: bump feed (tap the head on the ground), auto feed (the trimmer advances line automatically as it spins), and command feed (press a button on the handle). Bump feed is the most common and reliable. Auto feed can jam if the line tangles inside the head. Command feed gives you manual control so you only feed what you need, which reduces waste but requires a button press.
FAQ
Will a 24V trimmer handle my yard if I have thick weeds?
How long does a cordless string trimmer battery really last?
Can I use a different brand battery with my trimmer?
What is the difference between bump feed and auto feed trimmer heads?
Is a heavier trimmer always more powerful?
What size line should I use for my trimmer?
Do I need to assemble a cordless string trimmer when it arrives?
Can I edge sidewalks with a cordless string trimmer?
How do I store the battery in winter?
What is the warranty on these cordless trimmers?
Final Thoughts: The Verdict
If you want one dependable pick, the best cordless string trimmer is the Greenworks 60V because it delivers 60V brushless power with a 65-minute runtime and a 16-inch cutting width at a price that undercuts premium competitors by a wide margin. If you need pro-grade power and attachment capability for heavy daily use, grab the Milwaukee 2825-20ST. And for a lightweight, versatile tool that trims, edges, and mows on a single battery platform, the WORX 3-in-1 is the most practical choice for the average homeowner.
How We Picked
We do not accept paid placement. Every pick is matched to a real buyer and a real use-case; we do not hands-on test units.
Sources & Methodology
Specifications: manufacturer listings and product documentation. Review insights: verified customer reviews, as of July 2026. Pricing: not shown on this page (it changes often); check the current price via the retailer link.
As an Amazon Associate, WellFizz earns from qualifying purchases. This does not affect which products we feature.
Mo Maruf
I created WellFizz to bridge the gap between vague wellness advice and actionable solutions. My mission is simple: to decode the research and give you practical tools you can actually use.
Beyond the data, I am a passionate traveler. I believe that stepping away from the screen to explore new environments is essential for mental clarity and physical vitality.