Cost to own
Robot mowers and the off-season: winterizing, storage, and the maintenance owners forget
Winter storage means different work for each of these two mowers. This page looks at what each maker’s own pages say about off-season service, winter steps and what can stay outdoors.
This page checks
- Winter serviceWhether the maker lists a storage service
- Winter stepsWhat the maker’s guide or manual asks of you
- What stays outsideWire or station left in the yard
Robomow
Where to buy
Firmware 2.5 adds dock realignment retry logic and moisture cutout confirmation
Gardena
Where to buy
Gardena’s US robotic page lists Sileno accessories and does not list this mower
Bluetooth-only control range documented as recurring owner limitation
Full specifications18 figures on record · 13 differ
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RK4000
Sileno MinimoOff-season
What each mower asks of you at the end of the season
Gardena's manual asks for service before winter storage and a dry, frost-free space, and lets the station stay outdoors. Robomow's guide advises dealer service before winter, offered in selected countries, and says to store the mower indoors. Its base station can stay on the lawn with power unplugged.
Guide advises dealer service before winter and says service is offered in selected countries. US price was not found.
Maker operator's manualAdvised
Manual: “Take your product to your GARDENA service for service prior to winter storage.”
Maker operator’s manualCharge 24 h, clean, store indoors
Schedule off, power off, remove the key, clean it and store it dry indoors above 32 °F.
Maker operator's manualCharge, keep frost free
Manual: charge a full cycle before winter storage and keep the mower in a dry, frost-free space.
Maker operator’s manualBase station can stay out
Base station may stay on the lawn. Disconnect its power supply from the mains. The mower goes indoors.
Maker operator's manualWire
Box includes 492 ft (150 m) of boundary cable and a charging station. Manual lets the station stay outdoors, still connected.
Maker product page and manual
Your home
How each one fits a home like yours
Set the conditions that describe your home. Each robot answers from its own Fit Check; nothing is scored until you choose.
Fit check
Describe your home
Pick what applies. Each robot answers from its own record.
Sources
Where every figure comes from
- Sileno Minimo · Gardena international product page; Gardena operator’s manual as hosted on a manuals library; Gardena US robotic accessories page, 2 Oct 2026
- RK4000 · Maker operator's manual
Gardena's product, support and manual pages were opened on 2 Oct 2026; Robomow's facts come from its operator's manual. A fact is shown only where one of those pages states it, and everything else reads Not found.
Questions
What readers ask
Can the charging station stay outdoors over winter?
Gardena’s manual lets the station stay outdoors, still connected. Robomow’s guide lets the base station stay on the lawn with its power supply unplugged from the mains. Both mowers themselves go in dry storage.
Does the Gardena Sileno Minimo need service before winter?
Its manual says: “Take your product to your GARDENA service for service prior to winter storage.” It also asks you to charge a full cycle and keep the mower in a dry, frost-free space.
Does Robomow list a winter service for the RK4000?
Its guide advises dealer service before winter and says service is offered in selected countries. A US price was not found.
Common questions