Photo of Craftsman cordless string trimmer CMCST901M1, red and black, angled on white background.

Craftsman cordless string trimmer with red and black design, white background, CMCST901M1.

Photo of Craftsman cordless string trimmer, red and black, model CMCST901M1, angled view on white background.

Photo of a person using a Craftsman cordless string trimmer CMCST901M1 to edge grass along a black metal fence in a yard.

Photo of Craftsman string trimmer CMCST901M1 cutting thick grass next to a wooden garden bed.

CRAFTSMAN string trimmer CMCST901M1 close-up on grass, user trimming lawn edge near fence, outdoor use.

Photo of person using Craftsman cordless string trimmer CMCST901M1 edging lawn next to a stone path outdoors.

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Battery String Trimmers

CRAFTSMAN V20 String Trimmer and Lawn Edger Kit with 4Ah Battery and Charger

A 13-inch CRAFTSMAN V20 trimmer-and-edger kit with a 4Ah battery and charger.

OUR TAKE

Choose the V20 kit for a 13-inch trimmer and a named 4Ah power package.

Good for: A first V20 trimmer or an addition to compatible tools.
Look elsewhere if: You prefer automatic spool feed or a corded setup.
The tradeoff: The package ties the purchase to V20 batteries.

Get the right setup

Kit: CRAFTSMAN V20 4Ah battery and charger.
Approved line and trimmer/edger configuration.

View this model on Amazon Paid link

At a glance

Power source: Battery
Battery platform: CRAFTSMAN V20
Package: Battery/charger kit

Why it earns a look

Cordless operation on the specified approved battery system.
A named battery-and-charger package for starting the approved system.

Where it asks for a compromise

The package ties the purchase to V20 batteries.

How it fits the job

It is a useful option to compare if edge work is the next task in a V20 setup.

Living with it in the garden

Place charging and storage within the battery manufacturer's prescribed conditions.

Keep the approved refill line or spool identifiable so routine replacement is straightforward.

WORTH A LOOK ALONGSIDE IT

Which one belongs in your shed?

WORX WG163 12-inch trimmer and edger

Choose the smaller 12-inch WORX with button-fed line and adjustment features.

Read our take

BLACK+DECKER 20V MAX String Trimmer and Edger 2 in 1

Choose the BLACK+DECKER kit with automatic spool feed.

Read our take

Your CRAFTSMAN V20 String Trimmer and Lawn Edger Kit with 4Ah Battery and Charger questions

Can it be used for heavier brush clearing?

Only use the cutting setups and vegetation types approved for the exact tool. A lawn-trimmer format does not establish brush-cutter capability.

Full specifications, manuals & sources

Model details

Full model name: CRAFTSMAN V20 String Trimmer and Lawn Edger Kit with 4Ah Battery and Charger, 13 in. Cordless Weed Wacker with Up to 63 Minutes Runtime, Lightweight (CMCST901M1)
Amazon ASIN: B0GFYJ2WYD
Power source: Battery
Battery platform: CRAFTSMAN V20
Package: Battery/charger kit
Brand: CRAFTSMAN

Manuals & product information

Amazon model listing Paid link

Photo sources

craftsman.com product gallery

Product information checked 2026-10-29. Our assessment uses the linked specifications and manuals; it does not represent a hands-on test. Editorial standards & corrections.

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