Keep your lawn looking sharp with the powerful V20 String Trimmer Kit with 4Ah Battery and Charger. Finish the job in one charger with up to 63 minutes of runtimeⴕ and a 13 in. This kit includes 1 4Ah battery and a charger for a ready-to-use setup.
What does the CMCST901M1 kit include?
The kit ships with the trimmer, one 4Ah V20 battery, and a charger. It is ready to trim out of the box.
Why ship a 4Ah battery with a brushed string trimmer rather than a smaller pack?
A 4Ah pack supports the rated up-to-63-minute runtime. Smaller batteries work, but runtime drops noticeably on a brushed motor that draws more current than a brushless equivalent. The 4Ah pack gives a full session on a medium-sized yard without needing to stop and recharge.
What does the 2-speed setting mean in everyday yard work?
Lower speed handles light trimming near beds, fences, and pavers where you want precision and minimal debris scatter. Higher speed cuts through thicker grass and taller growth more effectively. Switching between them also extends battery life when full power is not needed.
How does the CMCST901M1 compare with the brushless CMCST920M1?
Both are 13-inch string trimmers on the V20 platform with 4Ah batteries. The 920M1 uses a brushless motor and the QUICKWIND spool system for faster line reloads. The 901M1 uses a brushed motor at a lower price. For weekly trimming on a medium yard the brushed 901M1 covers the job; for frequent use the brushless 920M1 is more efficient per charge.
Is the CMCST901M1 compatible with larger V20 batteries for longer runtime?
Yes. Any V20 battery fits the CMCST901M1. Upgrading to a 5Ah or 6Ah pack extends runtime if you have a large yard or want to trim and blow leaves on the same charge without swapping batteries.
# V20 String Trimmer Kit with 4Ah Battery and Charger **Model:** `CMCST901M1` **Brand:** CRAFTSMAN **Category:** String Trimmer > Keep your lawn looking sharp with the powerful V20 String Trimmer Kit with 4Ah Battery and Charger. Finish the job in one charger with up to 63 minutes of runtimeⴕ and a 13 in. This kit includes 1 4Ah battery and a charger for a ready-to-use setup. ## Specifications | Attribute | Value | |---|---| | Product Type | String Trimmer | | Voltage (V) | 20 | | Cordless / Corded | Cordless | | Power Source | Battery | | Motor Type | Brushed | | Tool Only | No | | Batteries Included | 1 | | Battery Ah | 4 | | Charger Included | Yes | | Battery Platform | V20 | | Barcode (UPC) | 198706041004 | | Country of Origin | China | | Warranty | 3-year limited | | Speed Settings | 2 | | Variable Speed | No | | Hammer Function | No | ## What's Included - (1) V20 String Trimmer Kit with 4Ah Battery and Charger - (1) V20 lithium-ion battery (4Ah) - (1) Charger Source: https://www.jaspecs.com/craftsman/string-trimmer/cmcst901m1-string-trimmer-kit/