Robot mower winterization: the complete checklist

The one number the brands cannot agree on

Search winter storage for a robot mower and you will find a confident answer about battery charge level. Six manufacturers behind the mowers we publish pages for give that answer in their own support channels, and the answers span more than half the battery. Sunseeker publishes around 40 to 60 percent for long-term storage, and explicitly advises against leaving a pack at 0 or 100 percent for months. Worx publishes around 70 to 80 percent for the Landroid, with the battery removed from the robot and a recharge every two months. Mammotion publishes at least 80 percent in its support knowledge base and approximately 80 percent in its LUBA 3 AWD winter maintenance article. Segway publishes at least 85 percent for the Navimow i series, followed by hibernation mode.

The other three go to the top. Husqvarna publishes fully charge your robotic lawn mower and switch it off before storage, noting most models need no charging while stored while some older models want a top-up every three months. Ecovacs publishes a full charge and shutdown for the GOAT before storage. Dreame publishes charge the battery fully before turning the robot off for the A3 AWD Pro.

We are not going to adjudicate that. Lithium chemistry, pack management and the sleep current of each machine differ, and every one of those figures is the manufacturer's instruction for its own hardware. The takeaway is a practical one: a generic winterization article that gives you a single percentage is contradicting somebody's manual, quite possibly yours.

• Sunseeker: around 40 to 60 percent, avoid 0 and 100 percent for months.
• Worx (Landroid): around 70 to 80 percent, battery removed, recharge every two months.
• Mammotion: at least 80 percent (support KB), approximately 80 percent (LUBA 3 AWD article).
• Segway Navimow i: at least 85 percent, then hibernation mode.
• Husqvarna, Ecovacs and Dreame: a full charge, then power off.

Published temperature ranges

Temperature is documented more consistently than charge level, though the figures still differ. Husqvarna publishes a single table covering operation, storage and charging for Automower: operation 0 to 50 degrees C (32 to 122 degrees F), storage 0 to 50 degrees C (32 to 122 degrees F), and charging 0 to 45 degrees C (32 to 113 degrees F). Its winter storage guide adds the practical instruction, to store the mower, charging station and power supply indoors in a dry environment above freezing.

Mammotion publishes a recommended mower storage range of minus 10 to 40 degrees C (14 to 104 degrees F) and states as a mandatory requirement that the mower be moved indoors when the outdoor ambient temperature drops below minus 10 degrees C. Its LUBA 3 AWD article sets a different indoor trigger, moving both mower and charging station indoors where winter temperatures regularly fall below minus 20 degrees C (minus 4 degrees F). Dreame publishes a long-term storage range of minus 10 to 35 degrees C for the A3 AWD Pro 3500 and its charging station, recommends 0 to 25 degrees C in a dry shaded place, and instructs storing the robot inside above 0 degrees C.

Segway publishes a storage range for the packed Navimow i of 5 to 45 degrees C in a dry, frost-free location. Sunseeker publishes an ideal storage room of 18 to 25 degrees C (64 to 77 degrees F), says never to leave the mower in freezing outdoor conditions, and adds a rule worth carrying across brands: avoid charging below freezing. Worx publishes no numeric range for the Landroid Vision, only that the robot and battery go in a dry, frost-free place away from direct sunlight or heat sources.

• Husqvarna Automower: storage 0 to 50 degrees C (32 to 122 degrees F); charging 0 to 45 degrees C.
• Mammotion: mower storage minus 10 to 40 degrees C (14 to 104 degrees F); indoors required below minus 10 degrees C.
• Dreame A3 AWD Pro: long-term storage minus 10 to 35 degrees C; recommended 0 to 25 degrees C; store inside above 0 degrees C.
• Segway Navimow i: packed storage 5 to 45 degrees C, dry and frost free.
• Sunseeker: ideal 18 to 25 degrees C (64 to 77 degrees F), indoors, never freezing.
• Worx Landroid Vision: dry and frost free, no numeric range published.

Base stations, antennas and the spring consequence

This is the part of winterization that costs you time in April rather than money in November, because on satellite-positioned mowers the base hardware defines the map. Husqvarna publishes that the EPOS reference station is weatherproof and can stay outside year round, and recommends leaving it out with the power supply connected, which maintains all virtual boundaries and map settings. If you do bring it in, Husqvarna says to keep the mounting arm on the post or wall, and states that existing virtual boundaries and work areas are preserved as long as the station is reinstalled in its original position; remount it elsewhere and you will need to recreate the boundaries. Its published storage range for the reference station is minus 20 to 70 degrees C (minus 4 to 158 degrees F). The charging station itself Husqvarna wants indoors, with one carve-out it states explicitly: on the Automower NERA only the top of the station comes in, because the baseplate is designed to stay outdoors.

Ecovacs takes the opposite default for the GOAT O1000 RTK. Its US support pages recommend moving the entire docking station indoors to keep the signal cable and electronics from freezing, and warn that moving the charging station may cause positioning errors and require remapping, advising you to mark the placement location first. For the RTK station, Ecovacs recommends bringing the signal head indoors while leaving the mounting pole outdoors, and stresses that the pole position must be unchanged or the positioning signal will be misaligned.

Mammotion publishes the most conditional procedure of the set for the YUKA mini 2 1000H. The charging station gets unplugged, unstaked, cleaned and removed, and must move indoors above minus 20 degrees C if the ambient drops below that. For the RTK reference station, above minus 20 degrees C you unplug it, wrap the cable, cap it and cover it in place, and Mammotion states that if you do not move it you will not need to delete the map and remap next season. Below minus 20 degrees C, a ground-mounted station requires deleting the map in the app before removal, with a remap next season; a wall or roof mounted station can be removed and reinstalled in its original position with no remap. Segway's Navimow i guide takes a simpler line, telling you to mark the charging station footprint with the four supplied silicone pegs, remove a ground-mounted antenna head while leaving its lower pole in the ground, cover a wall or roof mounted antenna in place rather than removing it, and noting that changing the antenna location requires creating a new map. Sunseeker says to bring the RTK base station indoors and store antennas dry and warm. Dreame, which uses no RTK station on the A3 AWD Pro, simply says to unplug the charging station and store it dry, cool and out of sunlight.

Cleaning, blades and the things easy to skip

Every maker that publishes winter guidance puts cleaning first, and three of them are unusually specific about what not to do. Mammotion and Dreame both prohibit a high-pressure washer, Mammotion because pressurized water can reach seals, bearings, connectors and the LiDAR and 3D vision modules, and Dreame because the A3 AWD Pro is rated IPX6, which permits a hose but not a pressure washer. Sunseeker likewise says to avoid pressure washers and hose jets. Worx says to avoid high-pressure water and to clean the charging contacts on both robot and base with sandpaper strips.

Blade replacement at winterization is the most agreed-upon step in the whole set. Husqvarna lists installing new blades and screws as a storage task, stating it prevents rust and ensures sharp cutting edges next season, and separately says always to replace the screw at the same time as the blade. Worx lists blade replacement in its winter preparation. Sunseeker says before winter is ideal so the first spring mow is clean and sharp. Mammotion has you remove the cutting discs, inspect the blades and replace any that are worn, damaged or corroded. Segway's Navimow i guide has you remove the blades before cleaning, using protective gloves.

Two brand-specific traps are worth carrying. Worx warns that the Landroid lock function engages if the robot loses Wi-Fi for 72 hours, so if you are storing it somewhere without coverage you should disable the lock in the app first. Husqvarna warns that if you are storing outside a GeoFence area you should disable GeoFence before powering off. Neither is obvious, and both turn into a support ticket in spring.

The checklist

Built only from the published steps above. The percentages and temperatures belong to specific brands, so use the ones for your machine rather than the middle of the range.

• Stop mowing when growth stops. Husqvarna notes grass more or less stops growing below about 8 degrees C (40 degrees F) and that frosted turf is extra sensitive to wear.
• Disable scheduled mowing tasks in the app (Mammotion), and disable the lock function (Worx) or GeoFence (Husqvarna) if you are storing where they will not reach.
• Set the storage charge to your maker's figure: 40 to 60 percent (Sunseeker), 70 to 80 percent (Worx), 80 percent (Mammotion), 85 percent (Segway), or full (Husqvarna, Ecovacs, Dreame).
• Power the mower off, and use hibernation mode if your model has it (Segway Navimow i). Remove the security key (Mammotion) or the battery (Worx).
• Clean the body, chassis, wheels and blade disc with a brush and low-pressure water. No pressure washer (Mammotion, Dreame, Sunseeker, Worx).
• Wipe the sensors: LiDAR and 3D vision modules with a lint-free cloth (Mammotion), the panoramic and AI cameras (Ecovacs), Vision AI cameras with microfiber (Sunseeker). Fit the LiDAR protective cover (Dreame).
• Clean the charging contacts on both mower and station (Worx, Mammotion, Ecovacs).
• Replace the blades, and the screws with them (Husqvarna, Worx, Sunseeker, Mammotion, Segway).
• Let the machine dry completely before storage, at least 30 minutes upright (Mammotion).
• Handle the charging station per your brand: indoors (Ecovacs, Husqvarna, Dreame, Sunseeker), or indoors below minus 20 degrees C (Mammotion). Mark its exact footprint before removal (Ecovacs, Segway).
• Handle the reference station per your brand: leave outdoors powered (Husqvarna EPOS), signal head indoors with the pole left in place (Ecovacs), covered in place above minus 20 degrees C or removed with a map deletion below it (Mammotion), ground-mounted antenna head off with the lower pole left in place and a wall or roof mounted antenna covered in place (Segway), base station indoors (Sunseeker).
• Store indoors, dry, above freezing, off a cold floor, away from heaters and direct sun, resting on all wheels on a flat surface (Husqvarna, Sunseeker).

Where the record has gaps

Two things are worth flagging so nothing here reads as more complete than it is. First, several of these guides are served from regional portals rather than a US page: Husqvarna's Automower winter storage and temperature articles (KA-70051 and KA-70058) were read on its Australia self-service site because the US support link routes to a separate help center, and Mammotion's winter storage knowledge-base article sits under its YUKA mini section. Husqvarna itself notes that services and details vary by country. We cite them as published and flag the region rather than dressing them up as US documentation.

Second, no maker in this set publishes a storage-duration limit, a capacity-loss figure for a season in storage, or a warranty consequence for storing outside the stated range. Sunseeker is the only one that explains why a mid-range charge is preferred, and it does so in general terms rather than with data. If you want to know what a winter actually costs your pack, that number is not published by anyone.

When the season turns, the same base-station decisions you made in November determine whether you remap or simply resume. Our companion guide, spring startup for robot mowers, traces that per brand.