October 10, 2026, 6:45 am | Read time: 2 minutes
When the mowing season ends, the robotic lawn mower also needs a break. Simply turning it off and storing it in the basement until spring is not a good idea. The battery’s charge level plays a crucial role in storage. Both a fully charged and an empty battery can suffer damage during the winter months.
That’s why the battery should be neither full nor empty
With a fully charged lithium-ion battery, aging progresses faster, especially when exposed to heat. This can lead to a permanent loss of capacity. The result may become apparent in the spring: The robotic mower covers less area on a single charge.
It can be even more problematic to store the mower with a completely empty battery. During the months-long break, it continues to discharge and can eventually become deeply discharged, risking permanent damage. In the worst case, a new battery is needed. Depending on the model, this can quickly cost a three-digit amount. For the winter break, a charge level of 40 to 60 percent is recommended.
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The right place for the winter break
After the last use in the garden, the robotic mower’s battery should first be charged to 40 to 60 percent. Then, the device should be turned off and stored in a dry, frost-free place. Temperatures between about 50 and 59 degrees Fahrenheit are ideal.
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This makes a basement or utility room suitable options. However, an unheated garage or garden shed is less suitable. The robotic mower should not spend the winter there.
The charging station should also be kept dry
Not only does the mower itself need protection. If possible, the charging station should also be dismantled and brought indoors. Moisture, frost, and significant temperature fluctuations can damage the electronics.
In January, it’s also advisable to check the robotic mower’s battery level. If it has fallen significantly below 40 percent, a brief recharge is sufficient.