Best Battery Powered Weed Eater (2026): 7 Cordless Picks

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The best battery powered weed eater is the one whose battery, swath and line match how much edge you actually trim. Cordless trimmers have taken over this category, but the listings vary enormously: some name a real battery platform and a stated runtime, others bundle two small packs and a bag of spools and leave runtime to your imagination. This guide is battery-only. We sorted current listings by what they state about voltage, cutting width, line diameter, feed system and batteries in the box, then picked seven string trimmers for different yards and budgets. A buying guide follows on platforms, runtime claims, stringless blade cutters and cold-weather battery care.

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How we compared: we compared 18 current Amazon listings for cordless weed eaters on what each listing states: voltage and battery capacity, cutting width, line size, feed system, runtime, edging features, weight and warranty. Ten are battery string trimmers; the other eight are stringless blade cutters, which we discuss below but did not pick. We did not lab-test or handle any of these tools. Prices and availability change often, so check the current listing before buying.

Quick picks: the best battery powered weed eaters

Product	Best for	Key features	Price	Buy
EGO Power+ ST1502SA	Best overall battery weed eater	56V brushless motor 15-inch swath with 0.095-inch line Up to 45 min stated runtime	$199.00as of Nov 10, 2026 5:53 pm GMT+0000	Buy now →Check current price
Greenworks 40V 2101602	Best 40V mid-range pick	12-inch dual line Variable-speed trigger Auto-feed head	—	Buy now →Check current price
Black+Decker LST300	Best budget 20V pick	Automatic feed spool Wall-mount charging base About 5.7 lb	$79.00as of Nov 10, 2026 5:53 pm GMT+0000	Buy now →Check current price
WORX WG163	Best for edging	90-degree tilting head Edging wheels and spacer guard Two 20V batteries	$119.28as of Nov 11, 2026 6:22 am GMT+0000	Buy now →Check current price
HEYWORK HY2307	Most battery in the box	Two 20V 4Ah batteries 8,000 rpm motor 8 spare spools	$49.99as of Nov 10, 2026 5:53 pm GMT+0000	Buy now →Check current price
RAXONE HG0556-CRE	Best for slopes and corners	9,500 rpm motor Head rotates and tilts 0 to 90 Two 2.5Ah batteries	—	Buy now →Check current price
KOMASTY 2030B	Best for tight storage	Shaft folds for storage 90-degree adjustable head Two 2Ah batteries	$54.99as of Nov 10, 2026 5:53 pm GMT+0000	Buy now →Check current price

Prices are Amazon’s listed prices as of the time shown and change often; check Amazon for today’s price. As an Amazon Associate we earn from qualifying purchases.

The 7 picks, compared listing by listing

1. EGO Power+ ST1502SA — Best Overall Battery Weed Eater

Best overall

Why we like it

• Only brushless motor among these string trimmers
• Widest swath and heaviest line on the battery shelf
• Up to 45 minutes per charge on the included pack
• 50-minute charge with the included charger
• 5-year tool and 3-year battery warranty

EGO ST1502SA — 56V 2.5Ah, brushless, 15-in swath, 0.095-in line, up to 45 min, 50-min charge, 5/3-yr warranty

The Only Brushless, 15-Inch, Heavy-Line Trimmer in the Group

Across the ten battery string trimmers we compared, the EGO stands apart on three specs at once. It is the only one whose listing names a brushless motor. It is the only one with a 15-inch swath; the other nine list 12 inches where they state width at all. And it is the only one using 0.095-inch line, where the others that state a size name 0.065. Heavier line holds up better against fence posts and rock borders and cuts thicker weeds, but it needs the kind of motor EGO pairs it with.

The listing also gives the clearest runtime and charging numbers on the shelf: up to 45 minutes on the included 2.5Ah battery and a 50-minute recharge. Only one other battery string trimmer states a runtime at all, and that figure is 30 minutes combined across two smaller packs. Warranty coverage is the longest stated too: five years on the tool and three on the battery. The battery runs every EGO 56V tool, so it also powers a mower or blower on the same platform.

Where it gives ground: at about 7.4 pounds it is heavier than the 20V models, and it ships with one battery, not two. The listing does not describe an edging mode, so plan to rotate the whole tool by hand for vertical edges.

Check EGO Power+ ST1502SA price on Amazon

2. Greenworks 40V 2101602 — Best 40V Mid-Range Pick

Why we like it

• Variable-speed trigger for edging versus heavy growth
• Dual 0.065-inch line cuts with two strings
• Automatic line feed, no bumping
• 40V pack fits a wide Greenworks tool line

Greenworks 2101602 — 40V 2Ah, 12-in dual 0.065-in line, auto feed, variable speed, 2–3-yr warranty (listing conflicts)

The Only Variable-Speed Trigger Among the 12-Inch Trimmers

Nine of the ten battery string trimmers we compared list a 12-inch cut, so width does not separate them. Speed control does. This Greenworks is the only 12-inch model whose listing describes a variable-speed trigger, the same kind of control EGO offers on its larger tool. Feathering the trigger helps around flower beds and along edges, where full speed shreds mulch and throws gravel, then you squeeze for the thick patch by the fence.

The 40V platform is a step above the 20V class most of this shelf uses, and Greenworks sells mowers, blowers and saws on the same battery. The head runs dual 0.065-inch line with automatic feed, so you get two cutting strings without bump-feeding.

Two listing problems are worth knowing. The warranty is stated two ways: the bullets promise three years on tool and battery, while the listing data says two. Confirm before you buy. The listed 12-pound weight is far above every other 12-inch trimmer here and likely includes packaging; the listing gives no separate tool weight and no runtime.

Check Greenworks 40V 2101602 price on Amazon

3. Black+Decker LST300 — Best Budget 20V Pick

Best budget 20V pick

Why we like it

• Automatic feed spool with no bumping
• Converts from trimmer to edger quickly
• Wall-mountable charging base keeps it stored and ready
• Light at about 5.7 lb
• 2-year limited warranty from a major brand

Black+Decker LST300 — 20V MAX 2Ah, 12-in, 6,200 rpm, AFS, trim/edge, wall-mount charger, 5.7 lb, 2-yr

The Only Listing Here With a Wall-Mount Charging Base

Small conveniences matter on a tool that hangs in the garage for a week between uses. The LST300 is the only battery trimmer in this comparison whose listing includes a wall-mountable charging base, so the tool can live on the wall already charging. For a homeowner with a modest lot who trims weekly in summer, that is the difference between grabbing it and forgetting to charge it.

The specs are honest entry-level numbers. Its 6,200 rpm is the lowest stated speed among the battery trimmers here, several of which list 8,000 to 9,500, and the single 2Ah pack has no stated runtime. In return you get Black+Decker’s automatic feed spool, a quick trim-to-edge conversion, an adjustable handle and a stated 2-year warranty from a brand with wide parts availability. The listing says this pack gives 33 percent more runtime than the brand’s previous battery, which is a comparison, not a minute figure.

Choose it for small, mostly grass edges. Skip it if your yard has thick weeds or long fence runs.

Check Black+Decker LST300 price on Amazon

4. WORX WG163 — Best for Edging

Best for edging

Why we like it

• Rubberized wheels guide straight edges
• Adjustable spacer guard protects plants
• Two batteries for swap-and-go trimming
• Batteries fit both 20V and 40V WORX tools

WORX WG163 — 2 x 20V 2Ah, 12-in, 0.065-in line, 7,600 rpm, push-button feed, edging wheels, 5.5 lb

The Only Battery That Spans Two Voltage Classes

Battery lock-in is the hidden cost of any cordless tool. Most brands here keep their 20V and 40V lines separate, and one budget listing warns that its battery fits nothing else at all. WORX states that its Power Share batteries work with all of its 20V and 40V tools, since the 40V tools run on two 20V packs. That makes the two batteries in this box more useful than the same two packs from a single-voltage brand.

It is also the best edging setup in the battery group. Several other trimmers here have heads that pivot 90 degrees, but the WORX adds rubberized support wheels and an adjustable spacer guard, so edging along a sidewalk becomes a walk rather than a balancing act. The push-button feed gives line on demand instead of automatically, which avoids wasting line against concrete. WORX also advertises free spools for life.

The listing does not give runtime per battery or the warranty term, and 12 inches at 7,600 rpm is mid-pack power.

Check WORX WG163 price on Amazon

5. HEYWORK HY2307 — Most Battery in the Box

Most battery in the box

Why we like it

• Two 4Ah batteries, the largest pair on this shelf
• Eight pre-wound spare spools included
• Switches between trimming and edging
• Automatic line feed

HEYWORK HY2307 — 2 x 20V 4Ah, 12-in, 8,000 rpm, auto feed, trim/edge, 8 spools, 6.3 lb

The Most Amp-Hours Included Among the Battery String Trimmers

Five of the ten battery string trimmers here include two batteries. This HEYWORK kit includes the largest pair: two 4.0Ah packs, for 8Ah in the box. The others with two packs include 2.0 or 2.5Ah batteries. Amp-hours only compare fairly within the same voltage, and EGO’s single 56V 2.5Ah pack holds a similar amount of energy at a higher voltage, but among the 20V trimmers this is the most battery you get without buying extras.

Eight pre-wound replacement spools also come in the box, and the tool switches between trimming and edging. The 8,000 rpm figure is mid-to-high for this shelf.

The weak spots are typical of lesser-known brands. The listing names no runtime, no warranty term and no line diameter, and does not say whether the battery fits any other tool. Replacement batteries and spools may be harder to find in a few years than for the brands above.

Check HEYWORK HY2307 price on Amazon

6. RAXONE HG0556-CRE — Best for Slopes and Corners

Why we like it

• Head rotates for edging and tilts for slopes
• 9,500 rpm, tied for the highest stated speed
• Two 2.5Ah batteries and a fast charger
• Ten replacement lines in the kit

RAXONE HG0556-CRE — 2 x 21V 2.5Ah, 12-in, 9,500 rpm, auto feed, rotating and tilting head, 10 lines, 6.2 lb

The Most Spare Line Included on the Shelf

Spare line is the consumable you burn through fastest, especially along rock borders. Three other budget kits here include eight spools each; this RAXONE listing includes ten lines, the most of any trimmer we compared. Its 9,500 rpm motor ties the KOMASTY for the highest stated speed among the battery string trimmers.

The head is the other reason to pick it. It rotates 90 degrees to switch to edging and separately tilts from 0 to 90 degrees, so you can keep the line parallel to a sloped bank or angle it into a corner under a deck step. That suits the terraced and sloped lots common in foothill neighborhoods.

The listing does not state runtime, warranty, line diameter or battery compatibility, and its “21V” rating is the same class of battery most brands label 20V max. Treat the high rpm figure as a spec-sheet number rather than proof of cutting power.

Check RAXONE HG0556-CRE price on Amazon

7. KOMASTY 2030B — Best for Tight Storage

Best for tight storage

Why we like it

• Shaft folds for vertical storage
• Head adjusts 90 degrees; handle rotates 180
• States a realistic 30-minute combined runtime
• Two batteries and auto feed included

KOMASTY 2030B — 2 x 20V 2Ah, 30 min total, 12-in, 9,500 rpm, folding shaft, 90° head, auto feed

The Only Folding Shaft Among These String Trimmers

Condos, townhomes and small garages run out of wall space long before they run out of tools. The KOMASTY is the only string trimmer in this comparison whose shaft folds, which lets it stand upright in a closet or corner. The head adjusts 90 degrees for edging and the handle rotates 180, so you can reach under benches and along tight paths.

Credit the listing for honesty about runtime: two 2.0Ah batteries, about 30 minutes total. That is the only runtime figure besides EGO’s among the battery string trimmers, and it is realistic for small yards. The listing also warns against forcing dense grass, which tells you its intended job is light trimming.

It does not state weight, warranty or line diameter. For anything beyond a small yard, pick the EGO or Greenworks.

Check KOMASTY 2030B price on Amazon

How to read battery weed eater specs

Voltage and amp-hours

Voltage roughly tracks how much power a tool can draw; amp-hours track how long a pack lasts at a given voltage. Multiply the two for watt-hours, the fairest single comparison of stored energy. On this shelf the 20V and 21V tools are the same class (20V “max” packs are typically 18V nominal), the Greenworks runs 40V, and EGO runs 56V. A 56V 2.5Ah pack and a pair of 20V 4Ah packs hold energy in the same range, but the higher-voltage tool can spend it on a heavier line and wider swath.

Runtime claims

Only two of the ten battery string trimmers we compared state a runtime in minutes. Runtime depends on grass thickness, line length and speed setting, so a manufacturer’s best case is a ceiling, not a promise. The practical fix is a second battery: five of the ten kits include one.

Cutting width and line

Twelve inches is the default; nine of the ten listings state it. Fifteen inches with heavier line, as on the EGO, is what lets a battery trimmer stand in for a gas one on long fence runs. Where a listing names line size, it is usually 0.065 inch, which is fine for grass and light weeds.

Feed systems

Eight of the ten listings describe automatic line feed. WORX uses a push button, and EGO’s Rapid Reload head is built for fast reloading instead. Automatic feed is convenient; on concrete edges it can over-feed, so a push-button design wastes less line.

Brushless motors

Brushless motors run cooler and convert more battery energy into cutting. Only the EGO names one among these string trimmers. Expect to see them on premium tools and rarely on budget kits.

Platform lock-in

Before buying, check what else runs on the battery. EGO, Greenworks, WORX and Black+Decker all sell mowers and blowers on their packs. If you plan a cordless mower or blower, start with the platform; see our electric lawn mower picks and cordless leaf blower picks to see which brands cover the tools you need.

What about stringless blade weed eaters?

Eight of the 18 listings we compared are stringless cordless weed cutters. They use interchangeable plastic, steel and saw blades on a telescoping pole, several list weights near 3 pounds, and some include a wheel for support. They avoid line refills and are pitched at light garden work.

We did not pick them because they solve a different problem. The cutting heads are small, many listings state widths around 6 inches or none at all, and spinning metal blades near rock, fencing and feet raise the debris and contact hazard. They can be useful for light weeding in raised beds. For lawn edges and fence lines, a string trimmer is still the better tool, and if you need to clear brush, the gas brush-cutter in our overall string trimmer guide is built for it.

Safety with cordless trimmers

Battery trimmers are quieter and simpler than gas, but the line still throws stones and debris at speed. The U.S. Consumer Product Safety Commission recommends eye protection, long pants, long sleeves, sturdy slip-resistant shoes and heavy gloves for lawn and garden power equipment, and advises clearing sticks, glass, wire and stones before starting. It also recommends keeping young children indoors and away from power equipment.

• Remove the battery before clearing jams. CPSC advises disconnecting power before making adjustments or clearing jams near moving parts. On a cordless tool that means pulling the pack, not just releasing the trigger.
• Hearing: NIOSH defines hazardous noise as 85 dBA and above. Battery trimmers are quieter than gas, but long sessions still warrant ear protection, especially with heavier line.
• Wet conditions: CPSC advises against using electric power tools in wet or damp conditions. Wait for morning dew to dry.
• Storage: keep tools turned off and batteries removed when unattended, so children cannot start them, as CPSC recommends.

Cordless trimming on the Front Range

Cold winters and battery care

Lithium-ion packs dislike both freezing and summer garage heat. On the Front Range a garage can drop well below freezing in January and bake in July. Store batteries indoors over winter at the charge level the manufacturer recommends, and let a hot pack cool before recharging, as several listings here advise. One budget listing here also says to recharge stored batteries within three months.

Rock mulch and xeriscape

Many Front Range lots mix a smaller lawn with rock beds and native plantings. Rock wears line fast, so spare spools and a spacer guard matter more here than in a pure-turf yard. The EPA’s WaterSense program notes that most residential outdoor water goes to landscape irrigation, one reason local utilities encourage smaller-turf designs.

Altitude

Thin air at elevation affects small gas engines, not batteries. That is one reason cordless trimmers are a popular choice in mountain and foothill towns, where hard-starting 2-cycle engines are a familiar frustration.

When trimming turns up a bigger problem

Trimming along the foundation is a good time to look at grading, downspouts and siding. Soil that slopes toward the house, puddling at the wall, or cracked stucco near grade are worth investigating; our guide to yard drainage explains the fixes, and the structure and exterior hub covers foundations, siding and decks. A weed eater cannot fix those. If you are buying or selling a Front Range home and want the exterior assessed properly, reach out through our contact page to connect with a vetted local inspector.

References

• Lawn and Garden Safety Tips: CPSC Urges Care With Springtime Chores — U.S. Consumer Product Safety Commission
• Take Precautions When Working on Lawn and Garden This Spring — U.S. Consumer Product Safety Commission
• About Noise and Occupational Hearing Loss — National Institute for Occupational Safety and Health (CDC)
• WaterSense: Outdoors — U.S. Environmental Protection Agency