SUNSEEKER SKRMX3PLUS

Sunseeker X3 Plus Robot Lawn Mower User Manual

Model: SKRMX3PLUS

Introduction

Welcome to the user manual for your new Sunseeker X3 Plus Robot Lawn Mower. This advanced, wire-free robotic mower is designed to provide effortless and precise lawn care for small to medium-sized yards up to 0.3 acres (13,000 sq. ft.). Featuring AI and RTK navigation, smart app control, and multi-zone capabilities, the X3 Plus ensures a perfectly manicured lawn with minimal effort. Please read this manual thoroughly before operation to ensure safe and optimal performance of your device.

Safety Information

For your safety and to prevent damage to the product, always adhere to the following guidelines:

  • Keep hands and feet away from the cutting blades.
  • Ensure the mowing area is clear of obstacles, pets, and people before operation. The X3 Plus features Vision AI for object recognition, but direct supervision is always recommended.
  • Do not operate the mower in heavy rain or extreme weather conditions.
  • Always turn off the mower and remove the safety key before performing any maintenance or cleaning.
  • Refer to the official Safety Information PDF for detailed safety instructions.

Package Contents

Upon opening your Sunseeker X3 Plus package, please verify that all components are present and in good condition:

  • Robotic Lawn Mower (1)
  • Charging Station (1)
  • RTK Base Station and Holder (1)
  • Charger for RTK Base Station (1)
  • Charger for Charging Station (1)
  • Cable clips (4)
  • Nails for Charging Station (8)
  • Nails for RTK Base Station (4)
  • Spare Blades (6)
  • Expansion Bolts (4)
  • Quick Start Guide (1)
  • User Manual (1)
Sunseeker X3 Plus package contents including robotic mower, charging station, RTK base station, chargers, and accessories.

Image: All components included in the Sunseeker X3 Plus Robot Lawn Mower package.

Setup

Setting up your Sunseeker X3 Plus is a straightforward process, designed for wire-free convenience.

1. Charging Station Placement

Select a suitable location for the charging station, preferably on a flat surface with access to a power outlet and clear of direct sunlight or heavy rain. Ensure there is enough clear space around the station for the mower to dock easily.

2. RTK Base Station Installation

The RTK Base Station is crucial for precise navigation. Install it in an elevated position with an unobstructed view of the sky, away from large metal objects or buildings that could interfere with the signal. Secure it using the provided nails or expansion bolts.

Sunseeker X3 Plus Robot Lawn Mower operating in a yard with the RTK base station visible, illustrating its navigation capabilities.

Image: The Sunseeker X3 Plus utilizing its RTK-GNSS positioning system for accurate lawn coverage.

3. App Installation and Initial Mapping

Download the official Sunseeker app from your device's app store. Follow the in-app instructions to connect your mower and begin the initial mapping process. The mower uses AI and RTK navigation to learn your lawn's layout, allowing you to define mowing zones, no-go areas, and corridors directly within the app. Take your time during the mapping phase to ensure accuracy for optimal performance.

A person using the Sunseeker app on a smartphone to control the robot lawn mower, showing the user interface for mapping and scheduling.

Image: User interacting with the Sunseeker mobile application for smart control and mapping.

Operating

The Sunseeker X3 Plus is designed for intelligent and efficient lawn maintenance.

Smart Navigation and Obstacle Avoidance

Equipped with Vision AI, the X3 Plus can recognize over 200 types of objects, including pets, toys, and garden tools, ensuring safer operation and preventing collisions. The AONavi Positioning System, combining RTK-GNSS and VSLAM, provides industry-leading navigation precision, allowing the mower to cover every inch of your yard systematically.

Sunseeker X3 Plus Robot Lawn Mower detecting and avoiding a large teddy bear on the lawn, demonstrating its Vision AI capabilities.

Image: The X3 Plus utilizing Vision AI to identify and navigate around obstacles.

Floating Cut Technology

The patented Floating Cut Technology automatically adjusts the blade height to match the terrain, preventing scalping and promoting healthier grass growth. This feature ensures a clean, professional-grade finish even on uneven surfaces.

Sunseeker X3 Plus Robot Lawn Mower demonstrating its floating cut system on an uneven lawn surface, showing how it adapts to terrain.

Image: Floating Cut Technology in action, adapting to varying lawn heights.

All-Terrain Capability

The X3 Plus is designed to handle various yard conditions, including slopes up to 30%. Its intelligent traction control ensures reliable performance across different terrains.

Sunseeker X3 Plus Robot Lawn Mower climbing a grassy slope, illustrating its ability to handle inclines up to 30%.

Image: The X3 Plus navigating a 30% incline with ease.

Quiet Operation

Operating at a low noise level of just 60 dB, the X3 Plus allows you to enjoy peace and quiet while your lawn is being mowed. This makes it suitable for use at any time of day without disturbing neighbors.

A woman relaxing in a chair on a lawn while the Sunseeker X3 Plus Robot Lawn Mower operates quietly in the background, emphasizing its low noise level.

Image: Enjoying a peaceful environment while the X3 Plus mows quietly.

Maintenance

Regular maintenance ensures the longevity and optimal performance of your Sunseeker X3 Plus.

Cleaning

Periodically clean the mower, especially the cutting deck and wheels, to remove grass clippings and debris. The X3 Plus is designed for easy cleaning, allowing you to rinse the underside with a hose.

A person cleaning the underside of the Sunseeker X3 Plus Robot Lawn Mower with a garden hose, demonstrating its waterproof design for easy maintenance.

Image: Cleaning the underside of the mower with a hose.

Blade Replacement

For best cutting results, inspect the blades regularly and replace them when they show signs of wear or damage. Spare blades are included in your package, and additional blades can be purchased separately. Always wear protective gloves when handling blades.

Troubleshooting

If you encounter issues with your Sunseeker X3 Plus, refer to the following common problems and solutions:

ProblemPossible Cause / Solution
"RTK Initializing" ErrorEnsure the RTK Base Station has a clear, unobstructed view of the sky. Relocate if necessary. Restart the app and the mower.
Mower gets stuck or struggles in thick/tall grassThe mower is designed for regular maintenance of lawns. For very thick or tall patches, it may stop to prevent damage. Consider manually trimming these areas before the mower operates, or adjust cutting height settings if applicable.
App schedule not savingEnsure your app and mower firmware are up to date. Try restarting the app and your mobile device. If the issue persists, contact customer support.
Manual driving control issues (e.g., "too far" error)Maintain close proximity to the mower during manual driving. Ensure strong Bluetooth/Wi-Fi connection between your device and the mower.

For further assistance, please contact Sunseeker customer support.

Specifications

FeatureDetail
BrandSUNSEEKER
ModelSKRMX3PLUS
Power SourceBattery Powered (1 Lithium Ion battery included)
MaterialPlastic
Colorsilver gray
Item Weight19.9 Pounds (9.03 kg)
Cutting Width8 Inches (20.32 cm)
Number of Positions7
Operation ModeAutomatic
Product Dimensions (D x W x H)23.94" x 14.96" x 9.84" (60.8 x 38 x 25 cm)
UPC850060195280
Maximum Adjustable Cutting Height3.2 Inches (8.13 cm)
Minimum Adjustable Cutting Height1.6 Inches (4.06 cm)
Country of OriginChina

Warranty and Support

SUNSEEKER is committed to providing excellent customer service and support for your X3 Plus Robot Lawn Mower.

Warranty Information

Your Sunseeker X3 Plus comes with a standard warranty. Please refer to the warranty card included in your package or contact customer support for detailed terms and conditions. An extended warranty may also be available for purchase.

Customer Support

For any questions, technical assistance, or troubleshooting not covered in this manual, our U.S.-based customer support team is ready to help.

Three customer support representatives wearing headsets and smiling, indicating available support for Sunseeker products.

Image: Dedicated customer support team ready to assist.

You can also find additional resources and FAQs on the official SUNSEEKER website or by referring to the Certificate of Compliance (PDF) and Safety Information (PDF) documents provided.

© 2025 SUNSEEKER. All rights reserved.

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