Best Battery-Powered Weed Eaters: 7 Cordless String Trimmers Compared
Looking for the best battery-powered weed eater? Compare seven cordless string trimmers by cutting width, line-feed control, edging functions and battery-bundle value.
Affiliate disclosure: This article contains affiliate links. As an Amazon Associate, we earn from qualifying purchases at no additional cost to you.
A battery-powered weed eater, also called a cordless string trimmer, keeps lawn edges, paths and fence lines tidy without a cord or a gas engine. Cutting width, line feed and edging controls tell you more about daily use than voltage alone.
These seven products include compact trimmers, wheeled edgers and two-tool kits. The comparison is based on product information and editorial research, not a timed grass-cutting test.
Best Battery-Powered Weed Eaters Comparison
| Model | Cut | Line / mode | Best for | Kit check |
|---|---|---|---|---|
| WORX WG163 GT 3.0 View on Amazon | 12 in | Push-button; edger | Adjustable edging | Confirm batteries |
| BLACK+DECKER LSTE525 View on Amazon | 12 in | EASYFEED; 2 speeds | Controlling line use | Confirm bundle |
| BLACK+DECKER LCC222 View on Amazon | 10 in | Automatic; sweeper kit | Small lawn plus dry cleanup | Check both batteries |
| Greenworks 40V kit View on Amazon | 12 in | Automatic; blower kit | Two-tool yard work | Battery shared |
| BLACK+DECKER LST300 View on Amazon | 12 in | Automatic; edger | Simple weekly trimming | Check battery capacity |
| BLACK+DECKER LST522 View on Amazon | 12 in | Automatic; 2 speeds | Choice of power mode | Confirm charger |
| WORX WG154 View on Amazon | 10 in | Automatic; edger | Tight spaces | Slow charger listed |
Which Battery-Powered Weed Eater Should You Choose?
The best battery-powered weed eater for most home lawns is not the most powerful trimmer. Start with the job you do most often, then pick the model that fits it.
- Best for neat lawn edges: WORX WG163. Wheeled edging mode and a light 5.3 lb build. View on Amazon
- Best for control over line use: BLACK+DECKER LSTE525. Two speeds and push-button EASYFEED. View on Amazon
- Best kit for a small yard with a patio: BLACK+DECKER LCC222. Trimmer plus sweeper and two batteries. View on Amazon
- Best for trimming and leaf cleanup: Greenworks 40V kit. A 12-inch trimmer and a 390 CFM blower on one battery platform. View on Amazon
- Best simple everyday trimmer: BLACK+DECKER LST300. Automatic feed and one speed, nothing to set. View on Amazon
- Best for tight borders: WORX WG154. Compact 10-inch head that is easy to guide around plants. View on Amazon
Best Battery-Powered Weed Eaters: Product Reviews
WORX WG163 GT 3.0 Cordless String Trimmer & Edger
- Power: 20V MAX
- Cutting width: 12 inches
- Line: 0.065-inch diameter
- Weight: approximately 5.3 lb
- Functions: trimmer and wheeled edger
The WORX WG163 combines a 12-inch cutting path, push-button line feed and a head that turns into a wheeled edger. At about 5.3 lb it is one of the lighter tools here, which helps when you trim lawn edges every week and want one tool for both jobs.
What stands out
The wheeled edging mode is the reason to choose this one: the small wheel rides along a path or driveway and keeps the cut line steady. The adjustable shaft and pivoting head also make it easier to reach under shrubs and along beds without bending.
- Light enough for one-handed guiding
- Converts from trimmer to wheeled edger in seconds
- Adjustable shaft and pivoting head
- Designed for grass and light weeds, not dense brush
- Some listings include one battery, others two
Who might consider it?
Choose the WG163 if neat, straight edges along paths and borders matter to you. If you mostly trim open grass, a simpler 12-inch model may be all you need.
Affiliate link · Confirm the selected model and included accessories on Amazon.
BLACK+DECKER LSTE525 20V MAX String Trimmer/Edger
- Power: 20V MAX
- Cutting width: 12 inches
- Speed settings: 2
- Line feed: EASYFEED push button
- Functions: trimmer and wheeled edger
The LSTE525 adds two speed settings and a push-button EASYFEED system to a 12-inch trimmer that also works as an edger. The lower speed saves battery on light touch-ups; the higher speed helps with longer grass.
What stands out
EASYFEED lets you decide when to advance the line instead of relying on an automatic system. Combined with the two speeds, it gives you more control over line use and runtime than the single-speed BLACK+DECKER models in this list.
- Two speed settings for runtime or power
- Push-button line feed
- Wheeled edging mode
- Not intended for heavy brush
- Plastic edge guide needs careful handling
Who might consider it?
A good fit if you want more control than a basic automatic-feed trimmer, for example when you switch between quick edging and longer grass along a fence.
Affiliate link · Confirm the selected model and included accessories on Amazon.
BLACK+DECKER LCC222 String Trimmer/Edger + Sweeper Combo Kit
- Power: 20V MAX
- Cutting width: 10 inches
- Tools: trimmer/edger and sweeper
- Line feed: automatic
- Standard kit: 2 batteries
The LCC222 kit pairs a compact 10-inch string trimmer with a light-duty sweeper and two batteries. It suits a small yard where clearing dry clippings from a patio or path after trimming matters more than a wide cutting path.
What stands out
This is the only kit here that includes a sweeper, and the standard kit comes with two batteries, so you can trim with one and clear the path with the other. The narrower 10-inch head keeps the trimmer easy to handle around plants.
- Trimmer/edger and sweeper in one kit
- Two batteries in the standard kit
- Compact and easy to store
- Narrower 10-inch cutting path
- Sweeper is meant for light, dry debris
Who might consider it?
Choose this kit for a small lawn with a patio or path to keep clean. For a large lawn, a 12-inch trimmer saves passes.
Affiliate link · Confirm the selected model and included accessories on Amazon.
Greenworks 40V Cordless String Trimmer and Leaf Blower Combo Kit
- Power: 40V
- Cutting width: 12 inches
- Line: 0.065-inch diameter
- Blower output: up to 390 CFM / 110 MPH
- Battery: 2.0Ah with charger
This Greenworks 40V package combines a 12-inch trimmer with a separate leaf blower rated up to 390 CFM and 110 MPH. It makes sense when you want both tools on one battery platform and plan to add more 40V tools later.
What stands out
The blower is a real second tool rather than a light sweeper, which makes this kit useful for trimming and then clearing clippings from paths and the patio. The 40V platform also gives you room to expand with a mower or hedge trimmer.
- Trimmer and leaf blower in one kit
- Blower rated up to 390 CFM / 110 MPH
- Expandable 40V battery platform
- One shared 2.0Ah battery can interrupt longer sessions
- Heavier than compact 20V trimmers
Who might consider it?
A practical choice if you want to trim and blow off paths in one go and you are open to building on the Greenworks 40V platform.
Affiliate link · Confirm the selected model and included accessories on Amazon.
BLACK+DECKER LST300 20V MAX String Trimmer/Edger
- Power: 20V MAX
- Cutting width: 12 inches
- Line feed: automatic
- Shaft: adjustable
- Functions: trimmer and edger
The LST300 keeps things simple: a 12-inch cut, automatic line feed, an adjustable shaft and an edging position. There is one speed setting, so there are fewer controls to think about during routine weekly trimming.
What stands out
Automatic feed advances the line as it wears, so you rarely stop to bump or adjust. The adjustable shaft helps taller and shorter users keep a comfortable working posture.
- Automatic line feed
- Adjustable shaft height
- Practical 12-inch cutting path
- Single speed offers less runtime control
- One battery may be limiting for larger yards
Who might consider it?
Choose the LST300 if you want an uncomplicated trimmer for a small to medium lawn and do not need speed settings.
Affiliate link · Confirm the selected model and included accessories on Amazon.
BLACK+DECKER LST522 20V MAX 2-Speed String Trimmer
- Power: 20V MAX
- Cutting width: 12 inches
- Speed settings: 2
- Line feed: Automatic Feed Spool
- Battery energy: 45Wh
The LST522 combines a 12-inch cutting path, automatic line feed and two speed settings. The lower speed stretches the 45Wh battery on light work; the higher speed helps in thicker grass.
What stands out
It combines the hands-off automatic feed of the LST300 with the two speed settings of the LSTE525. That makes it a flexible middle option for routine trimming around a typical suburban yard.
- Two speed settings
- Automatic line feed
- 12-inch cutting width
- Not designed for heavy brush or woody weeds
- Check whether the charger is included
Who might consider it?
Choose the LST522 if you want automatic feed and still like to switch between an economical and a stronger mode.
Affiliate link · Confirm the selected model and included accessories on Amazon.
WORX WG154 20V PowerShare Cordless String Trimmer & Edger
- Power: 20V MAX
- Cutting width: 10 inches
- Line: 0.065-inch diameter
- Line feed: automatic single line
- Listed charger time: about 5 hours
The WG154 has a smaller 10-inch head, which makes it easy to maneuver along narrow borders and around plants. It also switches between trimming and edging and runs on the WORX 20V PowerShare battery platform.
What stands out
The compact head and low weight make it handy for detailed work close to flower beds, raised beds and garden edging. If you already own WORX 20V PowerShare tools, the battery can be shared.
- Compact and lightweight
- Quick trimmer-to-edger conversion
- Shares batteries with WORX 20V PowerShare tools
- Narrower cut takes longer on larger lawns
- Listed standard charger takes about 5 hours
Who might consider it?
Choose the WG154 for small gardens with lots of borders and tight corners, or if you already use WORX 20V batteries.
Affiliate link · Confirm the selected model and included accessories on Amazon.
How to Choose the Best Battery-Powered Weed Eater
The best battery-powered weed eater for you depends on the size of your lawn, how many edges you trim and whether you want one tool or a kit. Use these five checks to narrow the choice. For related decisions, see the gardening tool set guide and the leaf blower guide.
Best Battery Weed Eater for a Small Yard
For a small yard, weight and handling matter more than power. A 10- to 12-inch 20V trimmer is usually enough for grass along paths, fences and beds, and it is easier to guide with one hand.
- Mostly borders and flower beds: the compact WORX WG154 or the BLACK+DECKER LCC222 with its 10-inch head.
- Lawn edges along a path or driveway: the WORX WG163 or BLACK+DECKER LSTE525, both with a wheeled edging guide.
- Trimming plus clearing the patio: the LCC222 kit with sweeper, or the Greenworks 40V kit if you also want a real leaf blower.
Protect your hands and knees during the rest of the garden work too: see our guides to gardening gloves and the best kneeling pads for gardening.
Cordless Weed Eater vs. Gas: Is Battery Power Enough?
For most home lawns, a cordless weed eater is the more practical choice. Gas trimmers still have a place, but for different jobs:
- Choose a cordless weed eater for weekly trimming and edging on a typical suburban lawn. It starts at the push of a button, is quieter, weighs less and needs no fuel mixing or engine care.
- Choose gas for large properties, long sessions far from a charger or thick, overgrown areas that need a heavier cutting head or a brush blade.
- Runtime: one battery usually covers a small yard. For larger lawns, a second battery is cheaper than moving to gas.
- Shared batteries: a battery weed eater on the same platform as your mower or blower saves money on batteries and chargers.
The same trade-offs apply to leaf blowers; see our gas vs. electric leaf blower comparison. For a flexible cordless weed eater with automatic feed and two speeds, the BLACK+DECKER LST522 is a good all-round choice. View on Amazon
Trimmer Line and Spools: Keeping Your Battery Weed Eater Cutting
Most problems with a battery-powered weed eater start with the line. Keep these points in mind:
- Use the right diameter: the WORX and Greenworks models here list 0.065-inch line. Thicker line than specified strains the motor and shortens runtime.
- Use matching spools for automatic feed: BLACK+DECKER automatic-feed models work best with the replacement spools made for that system; a generic spool can jam or feed too much line.
- Keep spare spools at hand: changing a spool takes a minute, rewinding loose line by hand takes much longer.
- Leave the guard on: the small blade on the guard trims the line to the correct length. Removing it overloads the motor and throws more debris.
- Store spare line out of the sun: old, dry line becomes brittle and breaks more often.
If you prefer a trimmer that looks after the line for you, the BLACK+DECKER LST300 uses automatic feed with no speed settings to think about. View on Amazon
How to Use a Cordless String Trimmer for Clean Edges
- Cut with the tip of the line: the last inch does the work; pushing the head into the grass only slows the motor.
- Tilt the head slightly and work in smooth sweeps, so clippings are thrown away from beds and paths.
- For edging, rotate the head to the vertical position and let the guide wheel (on the WORX WG163 and BLACK+DECKER LSTE525) ride along the path.
- Keep the line away from tree trunks: string trimmers can damage bark and young trees. A ring of mulch around trees removes the need to trim there.
- Protect yourself: wear safety glasses, long pants and closed shoes, and keep children and pets at a distance.
Clearing clippings afterward is quickest with a blower; compare options in our best leaf blowers comparison. Trimming around raised beds? Our guide on how to build a raised garden bed shows how edging boards keep grass out.
Battery Care and Winter Storage
- Remove the battery after use and before cleaning the trimmer.
- Clean the guard and head: dried grass on the guard and around the spool makes the trimmer run hotter and feed line less reliably.
- Store batteries indoors in winter, away from frost and heat, at the charge level the manual recommends.
- Hang the trimmer by its shaft so the head and guard are not bent.
Storing your cordless string trimmer is part of getting the yard ready for colder weather; see our checklist to winterize your garden.
Frequently Asked Questions
What is the best battery-powered weed eater?
It depends on your yard. For neat edges, the WORX WG163 and BLACK+DECKER LSTE525 have wheeled edging guides. For tight borders, the compact WORX WG154 is easiest to handle, and the Greenworks 40V kit adds a leaf blower. The best battery-powered weed eater is the one that matches your lawn size and the battery platform you already use.
Is a cordless weed eater as good as gas?
For grass and ordinary weeds on most home lawns, yes. A cordless weed eater is lighter, quieter and needs no fuel. Gas is still better for large properties and thick, overgrown areas.
Can I use any trimmer line in a battery weed eater?
No. Use the line diameter in the manual, often 0.065 inch for compact trimmers, and the matching replacement spools for automatic-feed systems. The wrong line can jam the feed or strain the motor.
What is a good cutting width for a small yard?
A 10- to 12-inch head is practical for most home lawns. A 10-inch head is easier around plants and tight borders; a 12-inch head covers open grass in fewer passes.
Is 40V always better than 20V?
No. Voltage alone does not tell you how well a trimmer cuts or how long it runs. Compare the motor, battery capacity (Ah or Wh), cutting head and the kind of growth you trim.
How long does a battery weed eater run?
Runtime depends on battery capacity, speed setting and how dense the grass is. One battery often covers a small yard; for larger lawns a second battery avoids waiting for a recharge.
Can a weed eater also edge?
Yes. Several models here rotate into an edging position, and the WORX WG163 and BLACK+DECKER LSTE525 add a wheeled guide for straighter edges along paths.
Will a battery string trimmer cut thick brush?
These models are made for grass and ordinary weeds. For woody stems and dense brush, look at a brush cutter with a blade instead.
Final Thoughts
The best battery-powered weed eater depends on your yard. For neat lawn edges, compare the WORX WG163 and BLACK+DECKER LSTE525. For a small yard, the LCC222 kit or compact WG154 keeps things light, and the Greenworks 40V kit makes sense if you also want a leaf blower. Whichever you choose, check the battery count, charger and replacement line before ordering.
Editorial note: Specifications come from manufacturer information and product listings reviewed in September 2026. Listings, bundles and availability can change; confirm the exact model and kit contents on Amazon before ordering.
Return to comparison ↑
