Last updated: November 13, 2026
A gas trimmer demands a pull cord, a fuel can and a tolerance for noise. A cordless string trimmer asks for a charged battery and not much else, which is why yards of a quarter acre or less have shifted so heavily toward battery tools. The challenge for buyers is that the category spans a very wide range: light 20V models meant for a small suburban fence line, a 40V kit that pairs with a blower, and a 15-inch cutting swath from a premium battery platform.
This guide compares seven cordless options using only the facts in each product title, in a year when 2026 shelves are crowded with similar-looking red and green trimmers. Cutting swath, battery capacity, line feed style and whether the unit doubles as an edger are the main points of difference. General safety applies to every one of them: wear eye protection and closed shoes, keep bystanders and pets well back, remove the battery before clearing line or changing the head, and follow the manufacturer’s manual.
Quick Picks
BLACK+DECKER 20V MAX String Trimmer and Edger 2 in 1, Cordless Weed Wacker with Auto Spool Feed, Battery and Charger Included, 12 Inch Steel Deck, Reduced Vibration (LST300)
Included for '7 Best Cordless String Trimmers (November 2026)' as a representative consumer electronics in this roundup; selection reflects the product set returned for this topic.
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Electric Weed Wacker Eater Cordless Battery Powered String Trimmer Whacker | 21V Grass Trimmer with 2× 2.0Ah Batteries Weedwacker 12" - Low Noise Ergonomic User Friendly Lawn Tool for Small Yard
Included for '7 Best Cordless String Trimmers (November 2026)' as a representative consumer electronics in this roundup; selection reflects the product set returned for this topic.
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Greenworks 40V 12 in String Trimmer & 390 CFM Blower Combo, 2.0 Ah Battery | 12" Weed Wacker & 390 CFM Leaf Blower Combo, Auto Feed Line, Cruise Control Blower, Lightweight 40V Lawn Maintenance Set
Included for '7 Best Cordless String Trimmers (November 2026)' as a representative consumer electronics in this roundup; selection reflects the product set returned for this topic.
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WORX 20V 12" 2-in-1 Cordless String Trimmer & Electric Lawn Edger, WG163 | Command Feed, Works for Lawn Weed Removal Tasks, 2 x 2.0Ah Batteries & Charger Included, PowerShare
Included for '7 Best Cordless String Trimmers (November 2026)' as a representative consumer electronics in this roundup; selection reflects the product set returned for this topic.
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Electric Weed Wacker Eater Cordless Battery Powered String Trimmer Whacker | 21V Grass Trimmer with 4.0Ah Battery Weedwacker 12" - Low Noise Ergonomic User Friendly Lawn Tool for Small Yard, 1 Pack
Included for '7 Best Cordless String Trimmers (November 2026)' as a representative consumer electronics in this roundup; selection reflects the product set returned for this topic.
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20V Electric Cordless String Trimmer 2 x 2.0Ah Battery Powered with Charger | 12 Inch Lightweight Lawn Trimmer, 2-In-1 Trimmer & Edger with Auto Line Feed, Grass Cutter Lawn Mower for Small Yard Garden
Included for '7 Best Cordless String Trimmers (November 2026)' as a representative consumer electronics in this roundup; selection reflects the product set returned for this topic.
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EGO POWER+ 15" Cordless Weed Trimmer with Battery and Charger - ST1502SA
Included for '7 Best Cordless String Trimmers (November 2026)' as a representative consumer electronics in this roundup; selection reflects the product set returned for this topic.
View on Amazon| Product | Best for | Key spec from the title |
|---|---|---|
| BLACK+DECKER 20V MAX 2-in-1 | Small yards with edging | 12 inch steel deck, auto spool feed, battery and charger included |
| 21V Electric Weed Wacker | Buyers who want spare battery capacity | 21V, 12 inch, 2 x 2.0Ah or 4.0Ah battery options |
| Greenworks 40V Trimmer and Blower Combo | Yard cleanup in one purchase | 40V, 12 inch trimmer, 390 CFM blower, auto feed line |
| WORX 20V WG163 | Two-battery runtime | 12 inch, 2-in-1 trimmer and edger, Command Feed, 2 x 2.0Ah |
| 20V 2-in-1 Cordless Trimmer | Light, entry-level yard use | 12 inch, 2 x 2.0Ah, auto line, trimmer and edger |
| EGO POWER+ ST1502SA | Wider cutting path | 15 inch swath, battery and charger included |
| BLACK+DECKER Wheeled Edger Model | Edging along walkways | 20V MAX, 12 inch, wheeled edger, 2.5Ah battery |
How to Choose
Voltage platform and battery capacity
Voltage tells part of the story, amp-hours another. The 20V and 21V trimmers in this group are positioned for light-duty trimming, while the 40V Greenworks unit and the EGO POWER+ model sit on larger platforms associated with more demanding work. Capacity in amp-hours indicates how long the battery should last under a given load: 2.0Ah is common, 2.5Ah and 4.0Ah appear on a few titles. Two batteries in one box effectively double the working time, a real convenience on a corner lot.
Cutting swath and deck size
A 12-inch swath is standard in this list, with the EGO stepping up to 15 inches. A wider cut clears more ground per pass but weighs more and is harder to maneuver around fence posts and flower beds. For tight yards, narrower is easier to control. For wide, open lawns, a wider head reduces the number of passes. Look for a guard that shields the user from flying debris and a deck large enough to prevent the head from being pulled into curbs.
Line feed and 2-in-1 edging
Auto feed or Command Feed systems advance the cutting line without bumping the head on the ground, which saves time and annoyance. A 2-in-1 model converts to an edger by rotating the head or by adding wheels, which is handy for sidewalks, driveways and the line between lawn and garden bed. Wheeled edger models trade some versatility for steadier tracking along a straight edge. Check how the line is replaced, since awkward spool designs can turn a quick refill into a chore.
Weight, noise and where budget units cut corners
Battery tools are quieter than gas, and lightweight designs suit people with less grip strength. Budget units tend to cut corners on motor power, shaft strength and battery quality, and replacement batteries can be hard to find. Brands tied to a larger battery platform offer more flexibility, since the same battery can power other tools. Look at warranty and replacement parts availability on the listing, and confirm that the charger is included rather than assuming it.
The 7 Best Options
BLACK+DECKER 20V MAX 2-in-1
This model combines a string trimmer and edger with a 12-inch steel deck, automatic spool feed and a battery and charger in the box. The steel deck and auto feed make it a straightforward choice for a small yard where the buyer wants minimal fuss and a ready-to-use kit. Edging a driveway or a flower bed border is simple on a 2-in-1 body, and a steel deck is generally more forgiving of bumps against curbs than a thin plastic guard, though it is worth checking the listing for the exact weight.
- Strength: Battery and charger are included, so the unit works right away.
- Strength: Auto spool feed saves bump-feeding time.
- Trade-off: The 20V platform is aimed at lighter trimming than larger 40V or higher systems.
Skip it if the yard is large or the grass is thick and tall. Anyone covering a lot of ground should consider the higher voltage options.
21V Electric Weed Wacker
This trimmer comes with a 12-inch head and a 21V battery, listed in versions with two 2.0Ah batteries or one 4.0Ah battery, and the title highlights low noise and an ergonomic design. The two-battery version gives a swap-and-keep-going option, while the single larger battery suits those who prefer fewer parts to charge. Because the title stresses low noise, the tool may appeal to buyers who trim early in the morning or live close to neighbors, although noise levels vary and no decibel figure is given.
- Strength: Two battery configurations let buyers pick based on how they work.
- Strength: Low noise and ergonomic handle wording point toward comfort.
- Trade-off: A lesser-known brand name means warranty and support details deserve a closer look on the listing.
Skip it if platform compatibility with other tools matters.
Greenworks 40V Trimmer and Blower Combo
Greenworks bundles a 40V, 12-inch string trimmer with a 390 CFM leaf blower, a 2.0Ah battery and features such as auto feed line and cruise control. Having both tools in one purchase makes sense for a buyer cleaning up grass clippings and leaves after trimming. Cruise control, which is named in the title, is meant to reduce the strain of holding a trigger for a long session. The 390 CFM figure applies to the blower, so judging the trimmer should rest on its 40V platform and 12-inch swath instead.
- Strength: Trimmer and blower are included together.
- Strength: 40V platform is a step up from 20V models, with auto feed and cruise control listed.
- Trade-off: Sharing one 2.0Ah battery between two tools means waiting for a charge on larger jobs.
Skip it if only the trimmer is wanted, since the blower adds to the purchase size without being needed.
WORX 20V WG163
The WORX WG163 is a 12-inch, 20V two-in-one trimmer and electric lawn edger with Command Feed line advance and two 2.0Ah batteries plus a charger. That two-battery configuration is a major draw, because swapping a fresh pack extends the job without waiting. For a buyer who wants to finish the whole yard in one go, a spare pack beats a bigger single battery because trimming one side while the other charges becomes an option. WORX also lists a model number, which makes finding replacement line or batteries easier.
- Strength: Two batteries ship in the box.
- Strength: Command Feed system and 2-in-1 conversion are named.
- Trade-off: As a 20V tool, it targets modest yards and not large properties.
Skip it if a higher-voltage tool with more power is the priority.
20V 2-in-1 Cordless Trimmer
This unbranded-style listing describes a lightweight 12-inch 20V cordless trimmer and edger with two 2.0Ah batteries and auto line. It is positioned as an easy, light tool for smaller lawns, and the two batteries help keep it running. A lighter tool is easier to swing along a long fence line, and the auto line feature reduces how often the head has to be bumped on the ground. Since replacement spools are a regular expense, it is worth checking which line size the head accepts.
- Strength: Lightweight design and two batteries.
- Strength: Trimmer and edger functions in one body.
- Trade-off: Without a major brand name, battery replacement and support need checking.
Skip it if long-term parts availability is a top concern.
EGO POWER+ ST1502SA
The EGO POWER+ ST1502SA is a 15-inch cordless weed trimmer with a battery and charger. At 15 inches, it clears a wider path than most of the 12-inch group, which can shorten the time spent along long borders and open lawn. A larger swath works best where borders are long and obstacles are few, such as a rural fence line or a big front lawn. The model number in the title also helps buyers hunt for matching batteries and accessories within the same platform.
- Strength: Widest cutting swath in the group.
- Strength: Battery and charger included in the listing.
- Trade-off: The title gives few details on line feed or weight, so the listing needs a closer read.
Skip it if tight spaces and light weight are more important than coverage.
BLACK+DECKER Wheeled Edger Model
This 20V MAX model is a 12-inch string trimmer that converts to a wheeled edger and includes a 2.5Ah battery and charger. The wheeled design helps keep a steady line along walkways and driveways. Using wheels to guide the head turns edging into a steady walk rather than a balancing act, which is easier on the wrists for buyers who edge a lot of concrete boundary every week.
- Strength: Wheeled edging mode for straighter lines.
- Strength: 2.5Ah battery is a slight step up from 2.0Ah packs.
- Trade-off: Only one battery is listed, so long jobs require charging time.
Skip it if a single battery will not cover the yard.
Which One Fits Your Situation
Small suburban yard with sidewalk edging
The BLACK+DECKER wheeled model and the BLACK+DECKER 2-in-1 both focus on edging and are well matched to short runs and tidy borders.
Corner lot that takes longer to trim
The WORX WG163 ships with two batteries, which helps stretch the working time before a recharge.
Cleaning up trimmings afterward
The Greenworks combo pairs a trimmer with a 390 CFM blower, so one purchase covers both steps. It also suits buyers planning to expand into other battery tools later, since a larger platform gives more room to grow.
Wide lawn with long borders
The EGO POWER+ ST1502SA offers a 15-inch swath and a bigger platform for covering more ground per pass.
Common Mistakes
- Choosing by voltage alone and ignoring battery amp-hours and the number of batteries in the box.
- Skipping safety gear such as eye protection and sturdy footwear.
- Buying a wider swath than the yard can use, then struggling around obstacles.
- Forgetting to remove the battery before replacing line or clearing jams.
- Ignoring replacement battery availability for off-brand tools.
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Frequently Asked Questions
Is a cordless trimmer powerful enough?
For small to medium yards and regular grass, cordless models handle the job. Thick brush and larger properties call for higher voltage platforms.
How long does a battery last?
It depends on the model, capacity and load. Listings with two batteries give longer working time, and runtime claims should be treated as estimates.
What does 2-in-1 mean?
It means the tool can switch between trimming and edging, usually by rotating the head or adding wheels. Check the manual for the right steps, and never change the head with the battery still attached.
Can the batteries be used in other tools?
Batteries from larger platforms often work across a range of tools from the same maker. Confirm compatibility on the listing before assuming it.
