When using portable power banks, please note the following:
a) The output voltage of the power bank must be within the range of 5.3V ± 0.5V; otherwise, it will not charge some brands of mobile phones.
b) The adapter must be compatible. Portable power banks work by charging digital devices via a USB cable. One end of the cable with the USB interface connects to the power bank, and the other end connects to the digital device. Therefore, the connector on the other end must match the connector on the digital device; otherwise, charging will not work.
c) Portable power banks should be stored in a dry environment. Rain, moisture, and various liquids or water can corrode electronic components and circuitry.
d) Portable power banks should not be stored in high-temperature environments. High temperatures will shorten the lifespan of electronic devices, damage the battery, and cause some plastics to age.
e) Do not throw or strike the power bank roughly. Rough handling may damage the internal circuit boards and precision machinery.