RK4000 16.5 In. 9.6 Ah Lithium-Ion Robot Lawn Mower (Up to 1 Acre)

The RK4000 16.5 In. 9.6 Ah Lithium-Ion Robot Lawn Mower (Up to 1 Acre) is a high-performance robotic lawn mower designed for homeowners who want quiet, efficient, and intelligent lawn care. Capable of cutting up to one full acre, the RK1000 combines ultra-quiet operation with advanced app-based control. Featuring multiple zone programming, adjustable cutting heights, and a brushless DC motor, it delivers consistent results even on uneven terrain and slopes. Thanks to its low noise output, you’ll hardly notice it working while it keeps your lawn perfectly maintained.

Specifications

• Area Covered Per Charge: 43,560 sq ft

• Size of Yard: 1/2 – 1 Acre

• Battery Voltage: 18 V

• Battery Amp Hours: 10 Ah

• Battery Run Time: 120 minutes

• Charge Time: 2 hours

• Charger Included: Yes

• Cutting Width: 16 in

• Cutting Height Options: 10-position

• Maximum Cutting Height: 4 in

• Minimum Cutting Height: 0.8 in

• Maximum Slope: 24 degrees

• Recommended Terrain: Flat, Sloped

• Start Type: Remote Start

• Product Weight: 27.3 lb

• Robotic Mower Features: No additional features

• Included: No additional items or accessories included

• Refurbished: No

• Returnable: 90-Day

Features

• Extremely Quiet Operation: Maintains lawns up to one full acre with minimal noise

• Robomow 2.0 Smart App: Zero-emissions battery mower with full mobile app control

• Multi-Zone Programming: Supports up to four secondary zones and two separate zones via app or onboard display

• Precision Cutting System: Pendulum-suspended mower deck and staggered blades ensure an even cut on uneven terrain

• Brushless DC Motor: Delivers efficient power, durability, and consistent performance

• Slope Handling: Manages slopes up to 45% with ease

• Easy Setup & Maintenance: Simple to install, clean, and maintain for long-term use

Maintenance

• Routine: Clean cutting deck and exterior to remove grass buildup

• Periodic: Check blade condition and adjust cutting height as needed

Warranty

• Manufacturer Warranty: 3-Year Limited Warranty