Yezz Z51 Manuel page 107

• Wipe the terminals of the product or the battery, if it
became dirty, with a clean and dry rag.
• It is necessary to charge the battery before its use. Always
use the charger and read the manufacturer instructions or
the manual of the device for the instructions regarding
charging.
• Do not leave a battery charged when it's not going to be
used.
• After long periods of storage, it may be necessary to
charge and discharge the battery several times in order to
achieve maximum performance.
• Always keep the original documentation of the device, you
might need it later for future reference.
• If it's possible, take out the battery of the device when it's
not used.
• Do not store your device in extremely hot or cold places
like inside of a car during the summer. It might damage
the device and cause explosion of the battery. It's
recommended to use the device in a range of
temperatures between 5°C and 35°C.
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