IKEA KOPPLA Manual Del Usuario página 5

this is completely normal and they will
gradually cool down again after they are
fully charged.
— Charger storage temperature:
-20°C to 25°C.
— Charger operating temperature:
0°C to 40°C.
— Unplug the charger from the power source
before cleaning and when it is not in use.
— To clean the charger, wipe with a moist
cloth. Never submerge the charger in water.
Recommended precautionary measures and
technical data, see the back of the charger.
Save these instructions for future use.
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