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Winterize your robot mower: an October 2026 checklist
Prepare the mower, station and cables for winter with a checklist that separates manufacturer instructions from general habits.
Identify the parts before putting anything away
Record the exact mower and station references. A family name is not enough: boundary-wire installations, satellite-reference systems and LiDAR models have different components. Keep the manual nearby and find shutdown, cleaning, battery and storage instructions.
List the mower, station, power supply, any reference antenna, connectors and accessories. Record a storage location and the supporting instruction for each. This avoids treating the entire installation as one device.
Clean and inspect before storage
Switch off the mower according to its instructions before handling it. Remove residue and inspect wheels, blade disc, housing and contacts. Do not borrow a washing method from another model: permitted water use and protected areas must match the manual.
Record damaged parts now, along with consumable references and repairs needed for spring. The aim is not to dismantle assemblies the manufacturer does not identify as user-serviceable.
Battery: avoid a universal charge percentage
Husqvarna specifies a full charge followed by shutdown for the Automower models covered by its storage guide. Some older models need periodic charging. That does not create a universal instruction for every robot mower battery.
Write down the specified charge level and any winter charging interval for your model. Do not remove a battery solely because a general internet tip suggests it. Follow the exact procedure and have damage checked before further use.
Station and cables: the GARDENA example
GARDENA recommends a dry, frost-free indoor space for the mower, ideally also bringing in the station and transformer. Boundary and guide wires can remain installed; their ends need protection from moisture.
The support page gives a different arrangement when the station cannot come indoors, keeping it connected as instructed. Do not combine conflicting procedures. Check the manual for the exact SILENO, especially when a listing groups different generations.
Worked example: preparing the Sunseeker S4
For the European S4 RMR1001M20V, the manual calls for a full charge followed by switching off before storage. Winter storage must be dry and frost-free. Clean with the mower switched off and without a pressure washer; pay attention to wheels, camera and station. Replace blades and screws together following the manufacturer procedure.
This preparation answers practical questions: is the room suitable, is grass stuck to the wheels, are consumables available and is the station clean? Read printed pages 21–24 of the English manual instead of generic lithium battery advice. Charging temperatures must not be confused with storage conditions.
Sunseeker S4 RMR1001M20V — manuel européen, pages imprimées EN 21–24
Prepare maps and spring startup now
Record component positions and useful settings before moving an installation. Husqvarna treats EPOS reference stations separately and notes that moving one can require rebuilding virtual boundaries. That does not apply automatically to every wire-free mower.
In spring, check condition, connections, maps and no-go zones, then supervise the first outing. If the yard has changed, treat startup as an installation check rather than just pressing start.
Use the checklist when comparing a purchase
Before buying, consider where the mower can be stored, which components need moving and how to obtain consumables. Reviews can reveal reported difficulties, but maintenance procedures should come from official documentation.
The linked GARDENA SILENO Minimo page concerns a specific US reference. Its owner experiences do not describe every SILENO. Matching the model, manual and region is more reliable than applying generic winter advice.
Plan winter storage as a complete service
For a substantial property, a gardener or dealer can manage winter storage if the scope is clear. Ask about cleaning, wear inspection, battery procedure, necessary disconnection, storage, transport and recommissioning. An “annual service” label does not automatically include everything.
Record condition at handover, wear, recent incidents and missing accessories. Request a separate quote before unplanned repairs. Convenience comes from clear responsibility and documented return, not simply sending the machine to a workshop for winter. Manufacturer instructions remain the technical basis for the service.
Choose storage space and plan handling
Check the storage location before shutdown day for compliance with the manual, access and the prescribed mower position. Adding a cover does not make a freezing shed suitable. If considering a shelf, account for weight, stability and how the mower will be handled.
Reserve space for the dock and power supply if they must come indoors, and label small parts. Keep equipment accessible for any required winter checks. The illustration featuring a Dreame A1 Pro shows a possible organisation, not a transfer of the specific GARDENA, Husqvarna or Sunseeker instructions to that model.
GARDENA — Winter storage indoors · Sunseeker S4 RMR1001M20V — manuel européen, pages imprimées EN 21–24
Create a usable maintenance record
Collect the invoice, equipment references, manual and consumable replacement dates. Describe symptoms rather than assumed diagnoses: stopping in the north passage, interrupted charging or a connection lost after moving the dock. A dated photograph can help a technician understand the circumstances.
Record schedules, active zones and exclusions before changes. A screenshot does not automatically restore a map; check the actual recovery process. A single page per season may be enough if it records what was done, by whom and what needs checking on restart.
Plan spending without replacing everything
Separate scheduled care, justified replacement and optional accessories. Ask for each proposed part’s reference and the reason for replacement. A brand name in a blade listing is insufficient: check exact model and screw compatibility. The S4 manual, for example, specifies replacing blades and their screws together.
Budget separately for the service, necessary consumables and possible repair. There is no universal maintenance amount derived from purchase price. When outsourcing, clarify who supplies parts and keeps receipts. Organisation does not require precautionary dismantling or replacing every serviceable component.
Sunseeker S4 RMR1001M20V — manuel européen, pages imprimées EN 21–24
In spring, check both the garden and the mower
Account for winter changes such as new plants, edging, terrace work, disconnected cables or a moved dock. Revisit the plan and installation instructions, then check passages and exclusions. Ask for a first outing with a return to charge and inspection of difficult areas rather than simply switching the mower on in the driveway.
Retain the work list, replaced-part references and validated settings. Record trimming that remains with you or the gardener. Agreeing this handover in October clarifies responsibilities and helps restore a usable garden when the season returns.
Husqvarna — Winter storage guide · GARDENA — Winter storage indoors
Related model pages: GARDENA SILENO Minimo 15202-41 · SUNSEEKER S4
Sources and verification
- Husqvarna — Winter storage guide · 2026-09-13
- GARDENA — Winter storage indoors · 2026-09-13
- Husqvarna — Operating, charging and storage temperatures · 2026-09-13
- Sunseeker S4 RMR1001M20V — manuel européen, pages imprimées EN 21–24 · 2026-09-13
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