Black & Decker ST1823 18V Cordless Grass Trimmer with 28cm Cutting Width, AFS Line Feed, Edging Function and Telescopic Shaft

With a 28 cm cutting width and a high-torque E-Drive gear system, the Black & Decker ST1823 delivers clean, efficient trimming at up to 9,000 RPM. This cordless grass trimmer runs on an 18V lithium-ion battery, giving you up to 40 minutes of runtime per charge. The automatic single line feed (AFS) keeps the 1.6 mm line at the ideal length, while the telescopic shaft and adjustable secondary handle adapt to your height for comfortable use. A built-in edging function with guide wheel lets you switch from trimming to edging in seconds, making lawn borders crisp and tidy.

Overview

The ST1823 is a lightweight, balanced string trimmer built for everyday garden maintenance. Weighing just 2.35 kg, it reduces fatigue during longer sessions. The 18V lithium-ion battery provides consistent power without the hassle of cords or fuel. The automatic line feed eliminates bumping, so you can focus on the job. The telescopic shaft adjusts to suit different users, and the secondary handle improves control in tight spots. The edging function with guide wheel helps you create clean lines along driveways and paths. A charger is included, and the battery recharges in about 5 hours.

What stands out

• 28 cm cutting width and 9,000 RPM for fast, even trimming
• Automatic single line feed (AFS) – no bumping required
• Edging function with guide wheel for neat borders
• Telescopic shaft and adjustable handle for personalized comfort
• Up to 40 minutes of runtime on a single charge
• Lightweight at 2.35 kg for easy manoeuvring
• 18V lithium-ion battery for fade-free power

Technical details

• Power source: 18V lithium-ion battery (1 included)
• Battery capacity: 2.0 Ah
• Charge time: approx. 5 hours
• Cutting width: 28 cm
• Line diameter: 1.6 mm
• Line feed: Automatic Single Line Feed (AFS)
• Idle speed: up to 9,000 RPM
• Edging function: Yes, with guide wheel
• Telescopic shaft: Yes
• Adjustable secondary handle: Yes
• Sound power level: 92 dB(A)
• Vibration level: 2.5 m/s²
• Weight: 2.35 kg
• Colour: Black, orange, red, silver

Our verdict

The ST1823 is a capable, user-friendly trimmer for small to medium gardens. Its automatic line feed and edging function save time, while the telescopic shaft and light weight make it comfortable for almost anyone. If you want cordless convenience without sacrificing performance, this is a solid choice.