Panasonic X100 Guide D'utilisation page 19

Always charge the battery in a well ventilated area, not in direct
sunlight, between +5°C and +35°C. It is not possible to recharge
the battery if it is outside this temperature range.
When connecting the phone to an external source, read the operating
instructions of the equipment for the correct connection and safety
precautions. Ensure the phone is compatible with the product it is
being connected to.
When disposing of any packing materials or old equipment check
with your local authorities for information on recycling.
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