Rollei Lumen Pocket RGB Manual Del Usuario página 18

Precautions
18
1. After charging is completed, unplug the USB cable.
2. If you have not used the product for a long time, charge the battery
before using it again.
3. In order to prolong the battery lifetime, it is recommended to charge
and maintain the product every three month.
4. This product has a built-in rechargeable battery which has a certain
lifetime. After using it for a certain period of time, the performance
will be reduced but this is normal.
5. If the device will be used in a too cold or too hot environment it will
automatically shut down to protect itself.
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