Best Black and Decker 20V Cordless Weed Eaters

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A 20V cordless weed eater suits edging, trimming around beds and tidying small areas, where a gas model would be more than the job needs. Only two of the six listings below are clearly 20V cordless string trimmers: the Worx 20V and the HEINPRO, which uses DeWalt 20V MAX batteries. The others are close but not the same: two are 21V, one is 24V, and one is corded. Each is labelled below.

Quick answer

If you already own a 20V battery, the Worx 20V 12-inch trimmer and edger (4.6 pounds) is a true 20V match, though its listing text suggests it may be sold without a battery. The HEINPRO is a 4.2-pound tool-only trimmer for DeWalt 20V MAX batteries. If you need a battery and charger in the box, the RAXONE 21V lists a 2.5Ah battery and fast charger in its title. The BLACK+DECKER is corded, not cordless, and is included only for comparison. For more trimmers, see the Black and Decker 36V weed eater comparison, the DeWalt 20V MAX weed wacker guide and the cordless string trimmer guide.

Comparison table

Product	Power	Cutting width	Weight	Box contents
Worx 20V 12-inch trimmer and edger WG163.9	20V battery	12 in	4.6 lb	Listing text suggests no battery or charger
HEINPRO for DeWalt 20V MAX	Battery (DeWalt 20V MAX)	12 in	4.2 lb	Battery and charger not included
RAXONE 21V trimmer and edger	21V battery	12 in	6.2 lb	2.5Ah battery and fast charger (title)
Greenworks 24V trimmer and blower combo	24V battery	12 in	Not stated	Title lists 2.0 Ah battery; other contents not stated
ALSO GO 21V with wheels	21V battery	6 in (blade system)	Not stated	Not stated
BLACK+DECKER 14-inch trimmer and edger	Corded electric	14 in	6.3 lb	Plug-in, no battery needed

Product reviews

Worx 20V 12-Inch 2-in-1 Cordless String Trimmer and Edger (WG163.9)

What it is: A 20V battery trimmer that converts to an edger. The listing mentions a Command Feed spool for instant line feeding. It cuts a 12-inch width, weighs 4.6 pounds, and comes in black and orange. Its listing text suggests it may be sold without a battery or charger.

Who it suits: A homeowner who already uses Worx 20V batteries or can buy one, and wants a light trimmer for small beds.

• Pros: A true 20V model; 2-in-1 trimmer and edger; 4.6 pounds.
• Cons: Battery may not be included; product dimensions are not stated.

Skip if: You need a battery and charger in the box.

View the Worx 20V trimmer on Amazon (affiliate link)

HEINPRO Cordless String Trimmer for DeWalt 20V MAX

What it is: A tool-only string trimmer that the listing says works with DeWalt 20V MAX lithium-ion batteries. Battery and charger are not included. It has a 12-inch cutting width and weighs 4.2 pounds, in black.

Who it suits: A DeWalt 20V MAX owner who wants the lightest trimmer in this group and already has a spare pack.

• Pros: Lightest at 4.2 pounds; works with an existing DeWalt 20V pack; 12-inch width.
• Cons: Tool only; weight may not include a battery.

Skip if: You do not own DeWalt 20V batteries.

View the HEINPRO trimmer on Amazon (affiliate link)

RAXONE 21V Cordless String Trimmer and Edger (not 20V)

What it is: A 21V trimmer and edger with a 2.5Ah battery and fast charger named in the title. The listing says the motor reaches 9500 RPM and cuts a 12-inch path. It weighs 6.2 pounds and is crimson.

Who it suits: Someone who wants a complete cordless kit and is happy with 21V in place of 20V.

• Pros: Battery and charger named in the title; 12-inch path.
• Cons: Heavier at 6.2 pounds; battery capacity details beyond the title are not stated.

Skip if: You want a 20V battery that works with other tools.

View the RAXONE trimmer on Amazon (affiliate link)

Greenworks 24V String Trimmer and Blower Combo (not 20V)

What it is: A lawn-care kit pairing a 24V 12-inch brushless string trimmer with a 270 CFM brushless leaf blower. The title mentions a 2.0 Ah battery, but the listing text suggests it may be sold without a battery or charger. Dimensions are listed as 48.97 x 10.27 in, green.

Who it suits: A buyer who wants a trimmer and blower together and is not tied to 20V.

• Pros: Two tools in one listing; brushless motor on the trimmer; 12-inch path.
• Cons: 24V, not 20V; weight and included components are unclear.

Skip if: You only need a trimmer or require a 20V battery.

View the Greenworks combo on Amazon (affiliate link)

ALSO GO 21V Cordless Weed Wacker with Wheels (not a standard string trimmer)

What it is: A 21V cordless grass trimmer with wheels. The listing describes a 3-in-1 cutting system with three quick-change blades: a 6-inch saw blade for thick branches, stainless steel blades for tough weeds and reeds, and plastic blades for lawn mowing. It has a telescoping pole from 92 cm to 122 cm. Cutting width is 6 inches and dimensions are 41 x 6.7 in.

Who it suits: A user who wants a wheeled blade tool for thick weeds rather than line trimming.

• Pros: Three blade types; telescoping pole; wheeled design.
• Cons: 21V; narrow 6-inch width; weight and box contents not stated.

Skip if: You want a standard line trimmer for edging.

View the ALSO GO weed wacker on Amazon (affiliate link)

BLACK+DECKER 14-Inch Auto Feed Trimmer and Edger (corded, not cordless)

What it is: A 6.5-amp corded trimmer and edger with auto feed and a wheeled edge guide. The listing describes a 2-in-1 design and a 14-inch cutting width. It weighs 6.3 pounds and is orange and black.

Who it suits: A small yard where an outlet is close and you want no battery to charge.

• Pros: No battery needed; auto feed spool; 14-inch width.
• Cons: Needs a cord, so it is not cordless; runtime does not apply.

Skip if: You want a cordless 20V tool.

View the BLACK+DECKER corded trimmer on Amazon (affiliate link)

Buying checklist

• Check the voltage in the title. 20V, 21V and 24V are not the same battery system.
• Decide if you need the battery and charger in the box or already own a pack.
• Read the cutting width: 12 inches for most here, 14 inches corded, 6 inches for the ALSO GO.
• Compare weight. It runs from 4.2 to 6.3 pounds where stated.
• Treat missing weight or box contents as unknown, and confirm on the page.
• Pick a standard line trimmer if edging is your main job.

FAQ

Which of these are actually 20V?

The Worx is a 20V model, and the HEINPRO uses DeWalt 20V MAX batteries. The RAXONE and ALSO GO are 21V, the Greenworks is 24V, and the BLACK+DECKER is corded.

Do any include a battery and charger?

The RAXONE names a 2.5Ah battery and fast charger in its title. The Worx and Greenworks listing text suggests they may be sold without them, and the HEINPRO states they are not included.

Which trimmer is lightest?

The HEINPRO lists 4.2 pounds and the Worx lists 4.6 pounds. Check whether the weight includes a battery before comparing.

Can a 21V battery fit a 20V tool?

Do not assume it does. The listings give no cross-compatibility information, so check the maker’s guidance before mixing batteries.

Is a corded trimmer a reasonable choice?

It can be for a small yard near an outlet. The BLACK+DECKER lists a 14-inch width and 6.3 pounds, but it needs a cord, so it is not a 20V cordless tool.

Closing note

For a true 20V match, choose the Worx or the HEINPRO. If you want everything in the box, the RAXONE is the kit-style option, at 21V. The Greenworks, ALSO GO and BLACK+DECKER suit other needs, so read them as alternatives and not as 20V models.