A 4,200 mah battery can be fully charged in 30 minutes.
With the progress of science and technology, science and technology in all aspects of life have shown more and more convenient products, including mobile phone charging, from 7.5w open fast charging technology, to the current maximum 120w fast charging, 69w fast charging products as a better cost performance, has been favored by many mobile phone manufacturers, charging 20 or 30 minutes, mobile phone battery is basically full.