FULLYEA 9-inch Cordless Weed Wacker 21V Brushless Trimmer Kit — 800W, Dual 4.0Ah Batteries

The FULLYEA 9-inch cordless weed wacker is a lightweight, battery-powered string trimmer with an 800W brushless motor, three blade types, and a 0–75° adjustable head for faster, more precise yardwork.

This 21V brushless string trimmer kit from FULLYEA is built to replace small gas units and older electric models for homeowners who want more cutting width, longer run time, and fewer hassles. It combines a high-RPM motor, interchangeable cutting blades (including durable steel wire blades), and a duo of 4.0Ah batteries so you can work larger areas without frequent recharging. The tool’s ergonomic design — removable auxiliary handle, safety lock, and adjustable head angle — helps you reach edges, slopes, and tight corners with better balance and control.

How does the 9-inch cutting width speed up yard tasks?

The larger 9-inch cutting swath covers more ground per pass compared with standard 6-inch trimmers, reducing the number of passes and total operating time. That wider span is especially helpful when trimming borders, small lawns, and overgrown patches, letting you finish faster while maintaining an even cut.

• 9-inch cutting diameter for wider coverage
• Less overlap needed versus 6-inch models
• Suitable for borders, sidewalks, lawn edges, and brushy spots

What power and performance can I expect from the brushless motor?

The FULLYEA features an 800W brushless motor that reaches up to 18,000 RPM, delivering high-speed cutting while improving efficiency and heat dissipation. Brushless technology typically yields longer motor life and less maintenance than brushed motors, making it a dependable choice for frequent yard use.

• 800W brushless motor rated up to 18,000 RPM
• Improved heat management for consistent operation
• Durable performance for repeated trimming sessions

Which cutting attachments come with the kit and when should I use them?

The kit includes a circular saw blade, two rhombic metal blades, five steel wire blades, and the standard setup for string trimming. Use the steel wire blades for tougher grass and light brush, the rhombic metal blades for thicker weeds and stems, and the circular blade where aggressive clearing is needed.

• Steel wire blades: stronger for thicker grass and brush
• Rhombic metal blades: handle thicker stalks and stems
• Circular saw blade: best for dense, overgrown patches

How does the design improve comfort and safety during long jobs?

The trimmer includes a removable auxiliary handle for two-handed balance, a safety lock to prevent accidental starts, and a grass shield to block debris. The head angle is adjustable from 0° to 75°, letting you trim at ergonomic positions without excessive bending or twisting.

• Removable auxiliary handle for balanced two-handed control
• Safety lock and grass shield to reduce accidental starts and debris
• 0–75° adjustable head for comfortable reach and angle control

Who is this for? Homeowners, renters, and small property caretakers who want a cordless, higher-coverage trimmer that reduces time spent on edging and clearing will appreciate the FULLYEA 9-inch weed wacker. It’s well-suited for yards with mixed vegetation — from lawn edges and sidewalks to patches of stubborn weeds — and for users who prefer a battery kit that includes spare batteries and a full accessory set for versatile trimming tasks.