Robotic Lawn Mower Maintenance & Spare Parts – The Complete Guide

A robotic lawn mower is an excellent solution for a well-maintained lawn without constant mowing. For the robotic lawn mower to work reliably, it needs regular maintenance and the right spare parts. In this comprehensive guide, you'll learn everything about robotic lawn mower blades, boundary wire, battery and electronics care, as well as tips for common problems.

1. Robotic Lawn Mower Blades – Sharp, fitting and durable

Your robotic lawn mower's blades are crucial for a clean cut and a healthy lawn. Dull or incorrect blades lead to frayed grass blades and can put a strain on your robotic lawn mower's motor.

1.1 Types of Robotic Lawn Mower Blades

• Original blades from the manufacturer – exact fit, higher cost
• Compatible blades – cheaper, often similarly durable
• Titanium-coated blades – longer service life and better cutting performance

1.2 When should you change robotic lawn mower blades?

The rule of thumb is: every 4–8 weeks, depending on the lawn area, mowing frequency, soil conditions, and blade quality. With sandy soil or daily mowing, frequent changes are advisable.

1.3 Changing blades correctly

1. Turn off the robotic lawn mower and remove the safety key
2. Place the device on a soft surface
3. Remove old blades, always change in sets
4. Install new blades, tighten screws hand-tight
5. Check function before starting the robotic lawn mower again

2. Boundary Wire & Accessories

The boundary wire defines the mowing area and ensures that the robotic lawn mower does not drive into flowerbeds, ponds, or paths. Damage to the cable or incorrect installation leads to malfunctions.

2.1 Cable types and quality

• Standard cable – suitable for normal lawns
• High-quality, UV-resistant cable – more durable and robust
• Cable with high conductivity – stable signal transmission

2.2 Installation & Care

• Lay the cable correctly – not too close to obstacles
• Be careful with crossings or slopes
• Regularly check the cable for breaks or damage
• Replace damaged sections during repair

3. Battery & Electronics

The battery is the heart of your robotic lawn mower. Good care extends its lifespan and performance.

3.1 Battery types

• Li-ion batteries – durable, fast charging
• NiMH batteries – slightly older, but still common
• Check capacity – weak batteries reduce runtime

3.2 Care & Storage

• Store in winter in a cool, dry, and partially charged state
• Regularly check charging cycles
• Replace battery if performance decreases

4. Common Problems & Solutions

Even with the best care, problems sometimes arise. The most common errors:

4.1 Robotic lawn mower does not start

• Battery empty or defective
• Blade set blocked
• Fault in the safety switch

4.2 Robotic lawn mower does not return to the charging station

• Signal loss due to damaged boundary wire
• Station moved or misaligned
• Software reset required

4.3 Uneven cut

• Dull blades
• Incorrect blade type
• Irregular maintenance

5. Selecting the right spare parts

Spare parts are crucial for the lifespan of your robotic lawn mower. High-quality parts prevent consequential damage.

• Always choose blades that match the model
• Original vs. compatible spare parts – both options are possible
• Only replace electronics from the manufacturer or certified partners
• Keep documentation for warranty and service

6. Winter care and storage

• Charge battery to 50–70%, store dry
• Clean housing, remove or protect blades
• Check cable for damage
• Perform software updates if available

7. Tips for a durable lawn and robotic lawn mower

• Adjust mowing frequency to lawn growth speed
• Regularly check and change blades
• Check cable routing and avoid obstacles
• Regularly maintain battery and electronics
• Observe seasonal care (spring & autumn)

8. Frequently Asked Questions (FAQ)

With this guide, you are well-equipped to keep your robotic lawn mower working reliably all year round and significantly extend its lifespan.