The harm of wireless backcharging to mobile phones (What is the principle of wireless backcharging)

• 1. Does Huawei reverse charge damage battery
• 2. What are the drawbacks of wireless charging for mobile phones?
• 3. The phone is charged while the wireless reverse charge is on, give the otherDoes charging your phone hurt your phone?

Is the Huawei reverse charging battery damaged?

Power consumption, Huawei reverse charging damage battery. Reverse charging includes wired reverse charging and wireless reverse charging, which is the charging function introduced on some mid-to-high-end flagship mobile phones.

The reason why the Huawei mobile phone jumps out of reverse charging may be that the battery is damaged, the battery temperature is high, the charger is damaged, and the charger output voltage is high. Huawei mobile phone reverse charging, in fact, because Huawei mobile phone battery structure and circuit design is differentDuring reverse charging, the battery will be damaged. The battery structure of Huawei mobile phones uses a dual-head design, and the circuit design also uses a dual-head design, which means that reverse charging will damage the battery.

But because the wireless reverse charging is not opened in the setting, you can directly charge it with other mobile phones, if you open it, it is not used for a period of time, it will automatically close, and you have to go to the setting when you want to use it.

Huawei Mate 30 Pro supports OTG reverse charging function. OTG (On-The-Go) is a USB transfer technologyThrough the OTG data cable, the mobile phone can directly access the files in devices such as U disks or digital cameras, and can also be connected to external devices such as keyboards and mice. You can charge other devices with your phone via the OTG cable. Connect mobile phones and other devices to be charged via OTG cable.

Hello. Since the device is designed for this function, there is nothing bad about it. The only bad thing is that it will accelerate the battery decay of Huawei mobile phones. Generally use mobile phones for reverse charging, most of which are used for emergency. And it's impossible to fill each other up. So use reverse charge workYes, there is no good or bad.

What are the drawbacks of wireless charging for mobile phones?

1, the shortcomings of mobile phone wireless charging although the technical content of the equipment is high, the economic cost of the equipment is high, and the maintenance cost is large. Because of the realization of long-distance high-power wireless magnetoelectric conversion, the energy consumption of the equipment is high. As the distance and power of wireless charging devices increase, the loss of idle work will be greater.

2, low efficiency: energy storage and delivery efficiency is less than real contact. Slow charging speed: due to low efficiency in the sameThe charging speed is slow under the input power. High cost: The charger needs to have an electronic circuit to promote the wireless coil, and the electrical device needs to have an electronic device to change the power, both also need to have a wireless coil, so the cost is higher than the direct contact.

3, the harm is relatively small can be ignored, wireless charging technology has appeared in the 19th century, but the popularity of mobile phone applications is not high. It uses the principle of "magnetic resonance" to allow the wireless charger to transmit an electric charge through the air to the phone's battery. Many wireless chargers on the market do not indicate the radiation value, and the electromagnetic radiation standards for wireless chargers are still availableNot issued.

Wireless reverse charging is on while the phone is charged. Will charging another phone hurt your phone?

Doesn't matter much. When the phone is charging, the electricity will be preferentially used from the charging source, and when the source is insufficient, it will be taken from the battery. Therefore, when reverse charging, it is necessary to pay attention to the power of the mobile phone charging is greater than the power of the wireless output (reverse to others), otherwise the battery power can not be supplemented and will be reduced.

In the phone (unpluggedWhen the battery power is less than 20%, the mobile phone automatically turns off the wireless reverse charging function to ensure the normal work of the mobile phone itself and a good charging experience.

Wireless reverse charging? Yes, he means it literally. No cable required, just two phones that can be charged instantly.

At this stage, the mobile phones on the market basically support the OTG function, but some low-end machines and individual mobile phones will not support it due to cost constraints. If your phone supports OTG, then it basically supports reverse charging, which means that you can use your phone to feed other phonesLine charging, but only if the two phones are connected together. The connecting medium is a base line and an OTG line.

Hello. Since the device is designed for this function, there is nothing bad about it. The only bad thing is that it will accelerate the battery decay of Huawei mobile phones. Generally use mobile phones for reverse charging, most of which are used for emergency. And it's impossible to fill each other up. So the use of reverse charging function, there is no good or bad said.

Using your phone to charge other phones definitely affects battery life. An important indicator of battery life is the number of charges and discharges