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Deal.ai › DeWalt › Grass Trimmers
Dewalt
Dewalt 20V GEN3 15 in Brushless Trimmer

Dewalt 20V GEN3 15 in Brushless Trimmer

Best price now

$239.00at Ace HardwareChecked 11 h ago

Compared across 2 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.

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Price facts

  • Lowest price today: $239.00 at Ace Hardware (checked Nov 10, 2026).
  • Checked at 2 stores.

Our take on the Dewalt 20V GEN3 15 in Brushless Trimmer

The DeWalt 20V GEN3 is a cordless string trimmer with a brushless motor and a 15-inch cutting swath, sold as a bare tool or with one 20V battery. Its brushless motor and 20V platform give it more runtime and torque than the brushed first-generation DeWalt trimmer, and it runs on the same batteries as DeWalt drills and saws. It suits homeowners with a quarter acre or so of lawn and existing DeWalt 20V batteries. Against 18V and 40V rivals it is mid-weight and mid-power: lighter and cheaper to run than 40V trimmers, but not as strong as them in tall, wet grass.

Best forHomeowners already on the DeWalt 20V battery platformEdging and trimming small to mid-size yardsLight brush and overgrown bordersBuyers who want one battery for tools and garden gear
Pros
  • Brushless motor for longer runtime and less maintenance
  • 15-inch cut width covers ground quickly
  • Shares 20V batteries with other DeWalt tools
  • Two-speed or variable trigger for control near beds and fences
  • Bump-feed head and adjustable handle for comfortable use
Cons
  • Not as powerful as 40V or gas trimmers in thick growth
  • Bare-tool versions need a battery and charger bought separately
  • Heavier than some 18V rivals with a large battery fitted
  • Line changes and spool refills take practice

Dewalt 20V GEN3 15 in Brushless Trimmer prices at every store

  • Ace HardwareNew

    In stock

    $239.00Free shippingChecked 11 h ago
    Visit Ace Hardware
  • Tractor Supply CoNew

    In stock

    $239.99Free shippingChecked 11 h ago
    Visit Tractor Supply Co

Store links may earn us a commission. Some prices via Klarna.

Dewalt 20V GEN3 15 in Brushless Trimmer price history

Lowest price we've seen: $239.00 on Nov 10 at Ace Hardware. Tracked across 2 stores since Nov 10.

What reviewers say

Owners rate the GEN3 as a solid, reliable trimmer for normal yard work, with good runtime on a 5Ah battery and a brushless motor that holds up. Most complaints center on power in tall, wet grass and on the cost of batteries if you are not already in the DeWalt 20V system.

What people mention
  • PowerMixedOwners say it handles normal grass well but slows in tall, wet growth.
  • Battery lifePraisedReviewers report long runtimes on 5Ah packs and quick swaps.
  • BuildPraisedThe brushless motor and shaft feel sturdy to most owners.
  • Line feedCriticisedSome owners report the bump feed jamming or line breaking often.
  • WeightMixedIt balances well but feels heavy with a large battery fitted.

Specifications

Power Source
BatterySource
Voltage (V)
20.0Source
No. of Batteries (pcs)
1Source

Questions and answers

Is the DeWalt 20V GEN3 trimmer powerful enough for thick grass?
It handles ordinary lawn edges and light brush well. In tall, wet grass it slows compared with 40V or gas trimmers, so cut in stages.
Does it come with a battery and charger?
Some kits include one 20V battery; bare-tool versions do not. Check the listing for what is in the box before buying.
What size trimmer line does it use?
It uses standard 0.080-inch line on a bump-feed spool. Heavier line may not feed reliably.
How does it compare with the first-generation DeWalt 20V trimmer?
The GEN3 adds a brushless motor and a wider 15-inch cut, giving better runtime and faster trimming than the brushed original.
Can I use my existing DeWalt 20V batteries?
Yes. It runs on DeWalt 20V MAX batteries, so packs from your drills and saws work in it.
Is it good for edging along sidewalks?
Yes, with the head rotated it edges cleanly. The adjustable handle helps keep a steady angle.
Where is the Dewalt 20V GEN3 15 in Brushless Trimmer cheapest?
At Ace Hardware, for $239.00, as of our latest check.
Where can I buy the Dewalt 20V GEN3 15 in Brushless Trimmer?
2 stores we checked sell it, including Ace Hardware, Tractor Supply Co.

Stores we've priced the Dewalt 20V GEN3 15 in Brushless Trimmer at

  • Ace Hardware deals and prices

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