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How does the portable mobile power supply work?

How does the mobile power work?

The built-in battery of the mobile power supply is charged by an external power source (such as a wall outlet), and then stored in a chemical form. When required, the battery sends power to the connected device through the output port.

This process is composed of three parts: energy absorption, storage and release. Its working principle is similar to our mobile phone battery, but the mobile power supply may be more complex, and its design still has more functions.

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