Winter storage of batteries

Lithium-ion batteries in battery tools, garden machines and also in electric bicycles must be stored in cold winter indoors. Cold and frost can ruin the battery.

Proper storage of batteries extends their service life

When the battery-powered device in storage is not in use during the winter, it should be stored indoors for the winter. This also applies to spare batteries. Storage at the wrong temperature, i.e. in a cold and damp warehouse, can ruin the battery and shorten its life considerably. In the spring, you may unfortunately notice that the battery no longer works after the winter.

Tukes, who is familiar with device safety, warns that in the worst case, a battery damaged by winter frosts can even cause a fire when you start charging it.

How to optimize battery life

Before putting the battery in winter storage, visually check its condition and charge the battery. You should never let a lithium-ion battery run completely empty. The battery should be charged from time to time also during storage.

• Monitor the battery while it is charging
  Do not leave the battery to charge by itself at home
• Do not charge the battery in a place with flammable materials around
• Always disconnect the battery from the charger when charging is complete
• Do not charge the battery in cold conditions

Charging the battery in the cold is possible, but it can damage the battery and shorten its life.

If the battery charger or its cables or connectors are damaged, the charger should not be used. If the battery or charger has dents, heats up while charging, or swells, it must be placed in a place where it cannot cause a fire. A faulty charger or battery may cause a fire when charging.

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Battery machines work best when you store batteries in a dry place and at a suitable temperature

Cordless machines and batteries should always be stored in a suitably warm, dry and well-ventilated area. Do not store batteries in a warehouse that is too hot or too cold. Moisture can also damage the battery and affect its life. You can find information about the suitable storage temperature for the battery in its user manual. It is good to store a device with a lithium ion battery and the battery at normal room temperature. Bad storage places for batteries are, for example, a hot boiler room or a cold outdoor warehouse in winter.

The more careful you are in storing the batteries, the longer their lifespan and better functionality.