All mobile phone chargers are actually consisting of a stable power supply (mainly a stable power supply, providing a stable working voltage and sufficient current), and the necessary constant current, voltage limit, time limit, and overwhelming control circuit.
The output parameters marked on the original charger (referring to the wire): such as output 4.4V/1A, output 5.9V/400mA, which refers to the relevant parameters of the internal voltage power supply. For example, the output 4.4V can be used for 4.5V equipment, and 5.9V can be used for 6V equipment.
