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4h ago

Store Mower Robots at 40–60% Charge to Avoid Costly Battery Damage

Keeping lithium-ion batteries at 40–60% in a dry frost-free space around 10–15 °C reduces ageing, prevents deep discharge, cuts replacement risk.

Image
Schwarzer Mähroboter mit gelben Rädern fährt durch hohes grünes Gras. Den Hintergrund bilden unscharf abgebildete Bäume und Sträucher.
So bringen Gartenbesitzer den Akku ihres Mähroboters sicher über den Winter.

Overview

  • Major German outlets and manufacturers consolidated advice on Tuesday, October 6, 2026, recommending a 40–60% charge for mower-robot batteries before winter storage.
  • A fully charged battery speeds chemical ageing while a fully discharged cell can self-discharge below safe voltage and become permanently damaged.
  • Practical winter routine takes about 5–10 minutes: check the charge via app or LEDs, bring the battery to roughly 50%, switch the robot off, and store it separate from the charger.
  • Store the robot and its charger indoors in a dry, frost-free place at about 10–15 °C and remove the docking station if possible to prevent condensation, corrosion, and plastic damage.
  • Check the charge again in mid-January and top up if it has fallen below 40% to avoid the battery-management system locking the pack and costly three-digit replacement bills; improper storage is generally not covered by warranty.