Methodology: This article synthesizes direct transcript data from real-world reviewers and long-term owners, including Image Matrix Tech (Dreame A1 4-month winter test), Pest and Lawn Ginja (Dreame A1 review), Field to Farm (Luba 2 3-month farm test), and Mike O’Brien (Luba 2 long-term test).
As winter approaches, properly storing and maintaining your robotic lawn mower is essential to protecting your investment. Improper storage can ruin a $300–$600 battery pack or corrode internal electronics.
Here are the key takeaways from real-world, multi-month field reports.
1. Lithium Battery Care: Avoid Freezing Temperatures & Deep Discharge
The battery pack accounts for 30% to 50% of your mower’s total replacement value.
Built-in Thermal Safety Warnings
Modern robotic mowers include software-level thermal safeguards. As noted by Image Matrix Tech during his 4-month Sydney winter test of the Dreame A1:
« It has frost protection and you will get a warning if the temperature drops too low for the battery to operate. » — Image Matrix Tech, « Dreame A1 Robot Mower Review: Three Months Later », July 2024
The Storage Charge Rule: Neither 0% nor 100%
- The Deep Discharge Floor: Storing a mower with a completely dead (0%) battery allows natural self-discharge to pull cell voltage below the critical 2.5V floor over winter. Once this happens, the internal Battery Management System (BMS) permanently disables recharging for fire safety—destroying the battery pack.
- Optimal Storage (60% to 80%): Charge your mower fully, then run it on the lawn for 15–20 minutes to reduce the charge state to 60–80% before switching it off.
- Use the Physical Off Switch: Tech reviewer Mike O’Brien emphasizes:
« Be sure to turn off the main hard switch on the machine, not just put it in standby mode via the app, otherwise it slowly drains over time. » — Mike O’Brien, « I Replaced My Lawn Guy With A Robot Mower (Mammotion Luba 2) », April 2024
2. Deck Cleaning: Never Use a Pressure Washer
During the season, moist grass clippings, sap, and soil compact under the cutting deck and around the wheel hubs.
What Field Testers Caution
Pest and Lawn Ginja notes that while modern units carry IPX6 water resistance ratings for rain, high-pressure water (like pressure washers) must never be used:
« The A1 has an IPX6 waterproof rating to allow for easy cleaning… but stick to a garden hose or brush. Pressurized water will force moisture into the sealed motor housings. » — Pest and Lawn Ginja, « FINALLY a robot mower that uses lidar like a robot vacuum », May 2024
Recommended Cleaning Method
- Let grass buildup under the deck dry completely.
- Scrape away debris using a stiff nylon brush or plastic scraper.
- Wipe down optical/LiDAR sensor lenses with a clean, dry microfiber cloth.
- Wipe brass or stainless steel charging contacts to remove light surface oxidation.
3. Blade Replacement Before Storage
Most modern mowers (Luba 2, Dreame A1, Navimow) use rotating razor blade discs.
Pest and Lawn Ginja explains blade maintenance frequency:
« Keep in mind these are razor blades so they’re going to have a nice clean cut and you should probably replace these blades about every 4 to 6 weeks. They made it super easy with their easy replaceable system. » — Pest and Lawn Ginja, same video
Image Matrix Tech notes how sharp blades transform lawn health over time:
« The blade configuration is just 22 cm in width with just three blades, it produces a very fine cut and you don’t have to do any raking afterwards… After several runs it definitely earned its money… the lawn has never been in such good condition. » — Image Matrix Tech, same video
Pro Tip: Remove worn blades before storing the mower for winter. Installing a fresh set in spring prevents rusty blade screws from seizing into the cutting disc over the cold, damp months.
4. Charging Station & RTK Antenna Winter Care
What to Store Indoors
- Power Supply / Transformer: Unplug and store indoors in a dry, frost-free space.
- The Mower Unit: Store flat in a dry room (>45°F / 8°C).
What Can Stay Outside
- Dock Base Plate: Can remain outdoors if covered with a breathable weather cover. Apply dielectric silicone grease to metal terminals to prevent corrosion.
- RTK Reference Antennas: Weather-rated poles can stay mounted, but as Field to Farm notes:
« Setup is dead easy. If you need to move it or take it down for winter, it took me maybe 5 minutes to set this up when I moved it. » — Field to Farm, « LUBA 2 honest review after 3 months use », July 2025
Pre-Winter Quick Checklist
- Battery charged to 60%–80%
- Main power switch flipped to OFF / 0 (not app standby)
- Deck cleaned with a dry brush (no pressure washers)
- Old blades removed
- Mower and power supply stored in a dry, frost-free room (>45°F / 8°C)
📌 Sources: Direct quotes extracted from transcripts of review videos by Image Matrix Tech, Pest and Lawn Ginja, Field to Farm, and Mike O’Brien.