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USER MANUAL (EN)
4. HOW TO OPTIMIZE THE BATTERY LIFETIME
– Charge the external battery charger preferably
using a USB power adapter and the mains electricity.
– Store the external battery charger on room
temperature. Store the product in a cool place (e.g.
a refrigerator) if you do not use it for a longer period
of time.
– Prevent the external battery charger from
being completely discharged.
5. SAFETY INSTRUCTIONS
– Don't charge the external battery charger
for more than 24 hours, this might cause overcharging
and decreases the battery lifetime.
– Keep the product away from sharp objects and
heating sources.
– Don't place heavy objects on top of the product. Don't
put any pressure on the product, don't bend the product
– Don't use any (chemical or organic) liquids with
the product