Does putting Batteries in the fridge extend its life?
Does putting Batteries in the fridge extend its life?
Putting Batteries in the fridge is not a recommended method of extending their life, and in some cases may even harm them. Modern Batteries are designed to be stored at room temperature and do not require refrigeration.
Where did this belief come from?
The idea of storing Batteries in the fridge dates back to a time when older cells (e.g. zinc-carbon) had higher levels of self-discharge and were sensitive to heat. Lowering the temperature could indeed slow down the chemical reactions inside the cell and extend the shelf life. However, with the development of battery chemistry - especially alkaline and lithium batteries - the energy storage properties improved dramatically and such treatments were no longer needed.
What are the risks?
Storing Batteries in the fridge runs the risk of moisture condensation on the Enclosures and contacts, especially when taken outside. A damp surface can lead to collapse, corrosion of the contacts or damage to the device in which the Batteries will later be used. In extreme cases, moisture can get inside the cell, which shortens its life and can lead to electrolyte leakage. Additionally, low temperatures can temporarily reduce battery voltage and performance, especially when used immediately after removal from the fridge. Lithium-ion Batteries are particularly sensitive to refrigerated operation - it is recommended that they are only used and charged within the temperature range recommended by the manufacturer, typically 0°C to 45°C.
How to store Batteries properly?
Rather than a fridge, Batteries are best stored in a dry, cool and shaded place, at room temperature - ideally between 15°C and 25°C. It is also important to avoid contact with metal objects that could cause a short circuit. Factory packaging often provides adequate insulation and protection from moisture. In conclusion, modern Batteries do not need to be stored in the fridge and this practice can do more harm than good. A better solution is to follow the manufacturer's recommendations for temperature and storage conditions.
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