The difference between usb charging and plug charging: 1. The voltage stability is different. The voltage error and stability of USB charging are better than those of plug charging. 2. The current is different. The current of USB charging is smaller and the voltage is slightly smaller than that of plug charging. The fluctuations will not have any impact on charging. Pulse fluctuation charging in a certain period of time is very good for the battery; 3. Charging speeds are different. The maximum current of USB charging can only be 500mA, and plug charging often exceeds 500mA, usually at 800-- Between 1200mA, the USB charging time will be longer, and the plug charging time will be shorter.
#The operating environment of this tutorial: iOS15.4.1 system, iPhone13Pro mobile phone.
With the development of science and technology, digital products have become very common in our lives. Digital products, as commonly used electronic products in our lives, need to be charged frequently. During the charging process, we have Sometimes a charger will be used to charge directly, and sometimes a USB interface will be used to charge. So what is the difference between charging with USB and charging with a charger?
1. Different voltage stability
Compared with the charger, the computer USB voltage has a very small error and is also very stable. From this aspect , the voltage error and stability are much better than the charger.
2. Different currents
All USB voltages in computers are DC 5V, but small wires are used in front of the computer for power supply. If inferior wires are used, sometimes the current is not enough, but the voltage is not enough. This causes fever. The back of the computer is led from the motherboard, and the copper sheet will be thicker, so there is no concern about heating. For charging, slight voltage fluctuations will not have any impact on charging. To be precise, pulse fluctuation charging for a certain period of time is very beneficial to the battery, especially lead-acid batteries and nickel-hydrogen nickel-cadmium batteries.
3. Differences in charging speed
Charging through the computer's USB interface, the maximum current supplied to the computer can only be 500mA, while charging through a charger, often exceeds 500mA, and many chargers often It will be 800--1200mA. In other words, charging through the computer's USB interface will take longer. If your charger provides a current greater than 500 mA, the charging time will be shorter.
What is the difference between charging with USB and charging with a charger? Just share it here. Excessive current during charging will often cause the battery to become hot or even explode. Since chargers often have current limiting or current protection circuits, you don’t have to worry about using a charger, but it’s best not to use universal chargers and inferior chargers.
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