Installing a Robotic Mower: Charging Station, Wire Layout and First-Week Settings

Ask anyone who services robotic mowers what most customer complaints turn out to be, and the answer is almost always the same: the installation. The machine is rarely faulty. It is stuck, lost or restless because the charging station is in the wrong place, the wire has a bad corner, or the settings were never adjusted after the first day.

An hour spent planning before anything goes into the ground saves days of puzzling afterwards. This guide covers the sequence for a typical installation. Always treat your machine’s own manual as the authority, because layouts and distances are specific to each model.

In brief

Put the station on level ground with a straight, clear approach, near a sheltered outdoor outlet.
Test the wire on the surface for a few days before fixing it.
Tune the first week: start the cutting height high and lower it gradually.

Table of Contents

Before you start

Read the manual first, including the sections on boundary distances and the charging station. Distances and angles vary by model.
Mow the lawn. Cut it with a conventional mower to a modest height, and rake up debris. Robots are for maintenance, not for tall grass.
Repair the lawn. Fill holes and level obvious bumps, and remove stones and sticks.
Sketch the plan. Mark the station, the boundary, every obstacle that needs protecting, and the narrow passages.
Check the weather. Work on dry ground, because wet soil is hard to work and wet cable is a nuisance.

Where the charging station goes

This is the most important single decision. The station is the mower’s home, and it determines the paths the mower takes when it leaves and when it returns. A poorly placed station leads to wear patterns on the lawn, failed docking and a mower that cannot find its way back.

Level ground. The mower approaches and docks along a straight line, and the manufacturer specifies how much flat, clear lawn must lie in front of the station. A station on a slope or in front of a bend leads to failed docking.
Close to power. The station connects by cable to a low-voltage power supply that plugs into an outdoor-rated outlet. If no outlet is nearby, adding one is electrical work and belongs to a licensed electrician. Do not run improvised extension cables across the lawn.
Shelter. Many manufacturers recommend a position that is protected from direct sun and heavy rain, since heat and wet shorten electronics’ lives. A spot against a wall under an overhang is typical, if the manual allows it.
A central or well-connected position. The mower travels from the station to the lawn on every trip. A station at the far end of a long lawn adds travel time and wastes capacity.
Clear of obstacles. Stay clear of overhanging branches, sprinklers and anything that might interfere with the approach.
Sky view, if the machine uses satellite positioning. See our comparison of boundary systems.

Lawn plan with a charging station, boundary loop and island loops around obstacles — A continuous loop around the edge, small loops around the tree and the bed, and a station on level ground with a clear approach.

Laying the boundary wire

For wired systems, the boundary is the next job. The wire is low voltage and is supplied by the station’s power supply, so you are handling a thin cable, not mains electricity. Even so, follow the manufacturer’s instructions on connections, and do not cut or splice the cable except as described in the manual.

The general approach is consistent across makes:

Lay it out before fixing it. Unroll the wire around the lawn and use the supplied pegs to hold it temporarily, without driving them deep.
Respect the distances in the manual. The wire has to be set back from different kinds of edge by different amounts: a flower bed, a paved path flush with the lawn, a fence or wall, a pond. The manual gives the numbers for your model, which are not the same for every machine.
Make wide corners. Sharp, tight corners confuse the mower. Gentle curves and wide angles are easier for it to follow.
Create islands for obstacles. To protect a tree or a bed in the middle of the lawn, the wire runs out to it, circles it, and returns along the same route, with the outgoing and returning wires laid side by side so their signals cancel. The manual shows the correct method.
Take care at slopes. Keep the wire back from steep edges and drops, so that the machine has room to turn before it reaches them.
Connect carefully. Use the supplied waterproof connectors. A bad joint is the classic cause of an intermittent fault that appears after rain.
Test before burying. Run the mower for several days with the wire pegged on the surface. Note where it misbehaves and adjust.
Then fix it permanently. Many owners leave the wire on the surface, where grass grows over it within weeks. Others bury it just below the surface with a slot cutter or a flat spade. Either way, do not trench so deep that the signal weakens, and follow the manual.

Mark where the wire runs. Marking the route on a plan, or with small markers at corners, saves you from cutting it when you later aerate, edge or dig. Many a mower has been blamed for a break caused by a spade.

Wire-free installation

With wire-free machines the work moves from the ground to the app. You typically drive or walk the mower around the edge of the lawn to teach it the boundary, or draw the boundary on a satellite map, then mark no-go areas. Some require mounting a reference antenna in an open position, on a pole or the roof.

The same principles apply: take care with edges and slopes, protect obstacles, and test. Pay particular attention to places where satellite signal may be poor, such as beneath trees, beside walls and in narrow gaps between buildings, and watch how the mower behaves there.

The first week

The first week is not a trial of the machine. It is the tuning of the installation, and you should expect to make adjustments.

Setting	Starting approach	Adjust when
Cutting height	Start at a higher setting than you want	Lower gradually, over several weeks, as the lawn adapts
Mowing hours	Begin with a modest schedule	Increase if it cannot keep up; reduce if the lawn looks stressed
Schedule times	Avoid when children or pets are in the garden	Move around your household’s routine
Rain behaviour	Use the rain sensor or a wet-weather setting	Adjust if it mows in wet conditions and leaves ruts
Edge or boundary behaviour	Default settings	If it leaves a wide uncut strip, or goes too close to a drop, adjust the boundary
Security	Set a PIN and enable the alarm	Review if the machine is moved or stored

Watch it. Spend time watching the mower work during the first few days. Most problems are visible: it hesitates at a certain corner, climbs a slope and slips, or heads off to a part of the lawn it was never meant to enter.
Keep a note of trouble spots. Mark them on your sketch. A spot where it repeatedly gets stuck usually needs a change to the wire, the ground or the settings.
Fix the ground, not just the settings. A hollow where the wheels spin or a root that tilts the machine is better filled or levelled than worked around.
Be patient with the grass. Some stripes and patches look uneven for a few weeks, while the turf adjusts to being cut little and often.

Common installation faults

The mower will not dock. The approach to the station is not flat or straight enough, or the guide wire is badly placed.
It keeps stopping at the same point. A bad corner, a poorly made joint, or an obstacle close to the wire.
It leaves strips of uncut lawn. The boundary is set back too far. Adjust within the manual’s limits.
It crosses the boundary. The wire is damaged or the signal is weak, a slope is too steep, or the ground is slipping.
It works for a while then goes home. A battery, schedule or weather setting needs changing.
Stuck in a hole or on a root. Repair the ground.

A dealer or installer can do all of this for you, and for a complex lawn it can be money well spent. If you install it yourself, take your time, follow the manual, and keep the sketch of where everything is. The effort at the start decides whether the mower becomes something you forget about, or something you keep adjusting.

Frequently asked questions

Do I have to bury the wire?

Many owners peg it to the surface and let grass grow over it within weeks; others cut a slot and bury it just below the surface. Either works if the manual’s distances are respected.