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wireless power bank

wireless power bank, refers to the built-in battery of the device, device, through wireless induction to obtain power for charging.  

Wireless charging technology, derived from wireless power transmission technology, works on the principle of induction cooker, when the current through the coil, it will generate a magnetic field;  The resulting magnetic field creates a voltage, which in turn generates an electric current, which can be charged. This technology is already used in wireless power bank sources.  

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