Yes, the designed USB interface is designed for mobile phone charging, the output quality is general, not only mobile phones, including many devices are also unified use of USB interface as the interface to connect the charger. And now there's a USB strip.
Mainstream mobile phones often come with a power management chip inside the phone. Even if the capacity of the battery is maintained, it will be reduced for about a year, the difference is that the maintenance may be reduced by 5%, and the maintenance will be reduced by 7%, after all, the aging of the internal components of the battery is inevitable.
Yes, the usb jack on the bull socket can directly charge the phone without causing harm to the phone. Because the manufacturer has connected the usb special jack inside the socket, this jack can facilitate people to directly use the data cable without a charger, and charge in this jack position, which is convenient for small electrical appliances such as mobile phones or charging banks that need to use the usb interface to charge, avoiding the trouble of finding a charger.
Yes, the designed USB interface is designed for mobile phone charging