How long does the battery last?

Boltarc rates runtime at up to 120 minutes with the two included 4.0Ah batteries. Expect less in tall or wet grass, where the motor works harder.

Does it really edge as well as trim?

The head rotates 90 degrees to convert from trimming to edging along sidewalks and driveways. It is a trimmer turned sideways, not a dedicated edger, so lines are neat but not blade-crisp.

Is it strong enough for thick weeds?

The 500W motor reaches 9,000 RPM, which handles thick grass and overgrown weeds. Dense brush and woody stems are beyond a string trimmer of this size.

What comes in the box?

The trimmer, two 4.0Ah rechargeable batteries and a charger. Check the listing for the exact charger and any guard or handle parts included.

The cutting width is 5.8 inches. That is narrower than full-size trimmers, which makes it easier to control around beds and fences but slower on large open lawns.

Homeowners with small to mid-size yards who want one cordless tool for trimming and edging. It suits quiet, fume-free upkeep rather than heavy land clearing.

Boltarc 21V Cordless Weed Wacker Eater, 3-in-1 Auto Feed String Trimmer

Best price now

$58.19at WalmartChecked Nov 9

Prices are checked against each store and labelled with when.

Visit Walmart

Boltarc 21V Cordless Weed Wacker Eater, 3-in-1 Auto Feed String Trimmer

Best price now

$58.19at WalmartChecked Nov 9

Prices are checked against each store and labelled with when.

Visit Walmart

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Price facts

Last seen at $58.19 at Walmart on Nov 9.

Our take on the Boltarc 21V Cordless Weed Wacker Eater, 3-in-1 Auto Feed String Trimmer

The Boltarc 21V Cordless Weed Wacker is a battery-powered string trimmer with a 500W motor that spins up to 9,000 RPM and a 5.8-inch cutting width. It ships with two 4.0Ah batteries for up to 120 minutes of runtime and a 90-degree rotating head that switches between trimming and edging. The auto line feed and adjustable head help with fences, borders and tight corners. It suits homeowners with small to mid-size yards who want one tool for trimming and edging without gas or a cord. Against gas trimmers it is lighter and quieter but less powerful on dense brush; against premium cordless brands it trades refinement and dealer support for a bundled second battery.

Best forSmall to mid-size residential yardsTrimming and edging along sidewalks and bedsBuyers who want two batteries in the boxNeighbors who want quiet, fume-free trimming

Pros

Two 4.0Ah batteries included for longer runs
90-degree rotating head switches to edging
Auto line feed keeps the string advancing
500W motor at up to 9,000 RPM
Adjustable head reaches fences and corners

Cons

5.8-inch cut width is narrow next to full-size trimmers
Not built for heavy brush or thick saplings
Bulkier than a dedicated edger for crisp lines
Battery runtime drops in tall, wet grass

Boltarc 21V Cordless Weed Wacker Eater, 3-in-1 Auto Feed String Trimmer prices at every store

WalmartNew
In stockSold by ProtmexReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
$58.19Free shippingChecked Nov 9
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About the Boltarc 21V Cordless Weed Wacker Eater, 3-in-1 Auto Feed String Trimmer

The Boltarc 21V Cordless Weed Wacker is a battery-powered 3-in-1 tool for trimming, edging and clearing weeds. It has a 500W high-torque motor that reaches up to 9000 RPM and a 5.8-inch cutting width.

The cutting head rotates 90°, so the tool switches between trimming and edging modes. The head is adjustable to reach narrow gaps around fences, garden beds and wall corners. An auto line feed system maintains the trimming line length during use, and a debris guard blocks flying grass clippings and debris.

It comes with two 4.0Ah rechargeable batteries that provide a runtime of up to 120 minutes. The design is lightweight and easy to assemble.

Motor: 500W high-torque, up to 9000 RPM
Cutting width: 5.8 inches
Dimensions: 47.16"L x 6.28"W
Batteries: 2 x 4.0Ah rechargeable
Runtime: Up to 120 minutes
Cutting head: 90° rotating, adjustable
Line feed: Auto line feed
Color: Dark green
In the box: 2 x 4.0Ah batteries, fast charger, 8 replacement spools

Specifications

color: GreenSource

Questions and answers

How long does the battery last?: Boltarc rates runtime at up to 120 minutes with the two included 4.0Ah batteries. Expect less in tall or wet grass, where the motor works harder.
Does it really edge as well as trim?: The head rotates 90 degrees to convert from trimming to edging along sidewalks and driveways. It is a trimmer turned sideways, not a dedicated edger, so lines are neat but not blade-crisp.
Is it strong enough for thick weeds?: The 500W motor reaches 9,000 RPM, which handles thick grass and overgrown weeds. Dense brush and woody stems are beyond a string trimmer of this size.
What comes in the box?: The trimmer, two 4.0Ah rechargeable batteries and a charger. Check the listing for the exact charger and any guard or handle parts included.
How wide is the cut?: The cutting width is 5.8 inches. That is narrower than full-size trimmers, which makes it easier to control around beds and fences but slower on large open lawns.
Who is it for?: Homeowners with small to mid-size yards who want one cordless tool for trimming and edging. It suits quiet, fume-free upkeep rather than heavy land clearing.
Where is the Boltarc 21V Cordless Weed Wacker Eater, 3-in-1 Auto Feed String Trimmer cheapest?: At Walmart, for $58.19, as of our latest check.

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