Robot Mower Accessories Worth Buying: 6 Simple Picks

8 min read by Jordan Ellis Updated November 11, 2026

Robot mower accessories worth buying are mostly spare blades, a boundary wire kit for repairs or expansion, and weather protection for the charging station. Other add-ons such as sunshades, traction wheels and storage parts only pay off in specific yards, climates or models, and brand listings rarely say which ones you need.

The short answer

Buy first: a spare set of blades, since Husqvarna recommends replacing them every 2 months.
Buy when needed: boundary wire, connectors and stakes for extensions or breaks.
Consider: a mower garage if the charging station sits in full sun or open rain.
Situational: sunshades, traction wheels and extra front wheels for hot, sloped or uneven lawns.
Check first: whether the accessory is listed for your exact model.

Blades: the accessory worth keeping on hand

Spare blades top the list of robot mower accessories worth buying, because blades wear down through normal mowing. Husqvarna recommends replacing blades every 2 months for optimal mowing results and low energy use, and notes that timing can vary with grass type and yard size. The same page says all blades and screws should be replaced together to keep the cutting system balanced.

Lawnlove, a robot mower buying guide, takes a slightly different schedule. It advises checking blades after each mow, removing clippings wrapped around the blade disc weekly, and replacing any blades that are chipped or dull every 1 to 2 months. The two schedules agree on the principle: inspect often and replace before the edge goes. Our reading is that the exact interval depends on how much you mow, so inspect the blades rather than relying on the calendar alone.

Two-sided kits: Worx describes its 12-piece blade kit as easy to replace, with two-sided blades that have dual cutting edges.
Larger blades: STIHL lists a 30 cm blade for its top iMOW models, which it says increases cutting width on large plots.
Model fit: blade sizes differ by model, so match the part number to your mower before you order. The robot mower blade replacement guide covers the swap itself.

Mower garage and protection from weather

A mower garage is worth considering when the charging station sits in full sun or open rain. Worx describes its garage with a lift-top as giving the mower extra protection against the elements, and its listing names specific models for some garages.

Robot mower parked on its dock inside a wooden roofed shelter beside a garden path — A roofed shelter keeps the mower and dock out of direct rain and sun.

The station itself also needs care. Robomow advises protecting it from full sunlight and splashing water, and avoiding spots near a lawn sprinkler. It also notes that constant heat shortens battery life, which is a reason to shade the station rather than just cover the mower. Husqvarna adds that the mower and charging station should be stored indoors in a dry place above freezing for winter, which the winter storage for a robot mower page walks through.

Our reading is that a garage matters most in climates with heavy rain or intense summer sun, and matters less where the station already sits under a roof or a shelter. A garage is not a substitute for a level, weatherproof outlet location.

Boundary wire kits, connectors and stakes

A spare boundary wire kit is one of the robot mower accessories worth buying when you extend the lawn or need to repair a break. Worx lists its boundary wire kit as extending the boundary by an additional 165 feet, while its wire connectors are sold for extending the boundary or replacing existing wire (see how waterproof wire connectors differ). Its lawn stake kit is designed to secure the wire to the ground.

Green boundary wire coil, plastic wire stakes in a mesh bag, a rubber mallet and gloves on a lawn edge — A boundary wire coil, stakes and mallet for laying a robot mower perimeter.

Installation rules matter more than the extra parts. Robomow says the perimeter wire leaving the charging station should run about 3 meters straight, and that angled corners are unsuitable. It also notes that underground wire takes significantly more time to install but is protected from weather and damage. A home-improvement installation guide from This Old House suggests securing the perimeter wire with staples about every 3 feet and using a single-wire loop around obstacles to define no-mow zones.

Heads up

Lawnlove argues that the most common boundary problem is not the wire itself but later changes to the yard. A new flower bed or mulch ring can lead the mower to look for shortcuts, so update the boundary when you change the layout.

Charging station add-ons: sunshade and a level base

A sunshade is worth adding where summer sun hits the charging station for long periods. STIHL states that its iMOW sunshade protects the mower from heat in that case. Shade helps the station, but it does not replace the basic setup rules.

Open space: Robomow recommends about 3 meters of clear space in front of the station, so the mower can approach from all sides.
Level ground: both Robomow and STIHL say the base should be as flat as possible.
Power: a weatherproof outdoor outlet nearby is needed, and the low-voltage cable should not be overly long.

Are robot mower accessories worth buying for every model?

Most robot mower accessories are model-specific, so confirm your model number before buying anything marked for a particular machine. Worx lists its tough terrain wheels for the WR147, WR155 and WR165 models, and its garage for the Vision Cloud and Vision Cloud 4WD. STIHL lists its 30 cm blade for its top iMOW models only.

On slopes, grip add-ons such as traction spikes are another option. Some features are sold only for certain sensors. Worx lists magnetic strips and RFID tags for its Vision models, and the listing does not explain what they do beyond their names. Unless your model supports them, skip those parts. The table below sums up which robot mower accessories worth buying fit which situation.

Accessory	Buy when	Check first
Spare blades	Always keep a set ready for the blade replacement interval	Blade size and part number for your model
Boundary wire kit and connectors	You expand the lawn or need to repair a break	Wire length you need and the correct kit size
Mower garage	The station sits in full sun or open rain	Garage listed for your exact model
Sunshade	The station gets long periods of summer sun	Compatibility with your charging station
Traction or extra front wheels	Your lawn has slopes, hills or uneven ground	Wheel models listed for your mower
Magnetic strips or RFID tags	Your model supports them and you need zone control	Model support before buying

Maintenance kit and storage extras

Most of the robot mower accessories worth buying cost little, and routine maintenance needs no special accessory. Husqvarna recommends a thorough cleaning of the body, chassis, blade disc and other moving parts before storage. Lawnlove suggests a weekly clean with the mower switched off and an annual professional checkup covering firmware, sensors, the battery and mechanical parts.

A wall holder for winter storage or a storage bag is a convenience rather than a must. Worx lists a storage bag without stating a purpose, and STIHL lists a wall holder for winter storage. Our reading is that these are worth it only if you have no dry indoor space for the mower. Storage also affects the battery: Lawnlove puts the life of a lithium-ion battery at 2 to 5 years, so a dry, frost-free spot is part of protecting that cost. More upkeep and add-on guides sit in the robot mower gear section.

Frequently asked questions

Which robot mower accessory should I buy first?

Spare blades are the first accessory most owners should keep on hand. Husqvarna recommends replacing blades every 2 months and replacing all blades and screws together for a balanced cut.

Do I need a mower garage?

Not always. A garage matters most when the charging station sits in full sun or open rain. Worx describes its garage as extra protection against the elements, and Robomow advises keeping the station out of full sunlight and splashing water.

Is extra boundary wire worth buying?

Buy it when you extend the lawn or repair a break. Worx lists its boundary kit as adding 165 feet, and Lawnlove notes that later yard edits cause more problems than the wire itself.

Do accessories fit every robot mower?

No. Accessories are often listed for specific models, such as Worx wheels for the WR147, WR155 and WR165, or STIHL’s 30 cm blade for its top iMOW models. Check your model number before buying.

Sources

Accessories for Worx Landroid Robot Mowers (Worx): boundary kit length, connectors, stakes, blade kit, garage and model compatibility.
How to install the charging station of the robotic lawnmower (Robomow): station placement, perimeter wire layout, underground wire.
Automower Support Center (Husqvarna): blade replacement interval, replacing blades as a set, cleaning and winter storage.
Robotic mower accessories (STIHL, Australia site): sunshade, traction and front wheels, 30 cm blade, wall holder, level base.
Lawnlove, “What is a Robot Mower and How Does It Work?” (lawnlove.com): blade inspection schedule, weekly cleaning, annual checkup, boundary edits.
How to Install a Robotic Lawnmower (This Old House): staple spacing, single-wire loops for no-mow zones.