There are still many people who like to turn on the flight mode when charging. I have also tested this situation. Indeed, the charging speed will be significantly faster, which can be said to be second only to the charging in the closed state. You can do this as long as you don't worry about missing the phone and other information when charging. However, whether the mobile phone is turned off or turned on, the ambient temperature is the most important. Many people like to bury their mobile phones under pillows to charge them, which may lead to an increase in battery temperature. If the temperature is too high, it will affect the battery life and even be dangerous.
Whether it is slow charging or fast charging, it doesn't matter whether the flight mode is turned on or not. After all, normal cell phone signals will not bring excessive temperature and pressure to the cell phone when charging, but it is not good if you like to play mobile games while charging. When a mobile phone runs a mobile game, it will generate a lot of heat. Coupled with the heat of battery charging, it will produce high temperature and damage the battery life. Therefore, it is necessary to run as few large programs or games as possible when charging the mobile phone.
Nowadays, mobile phones basically use lithium-ion batteries, so first of all, I will tell you the fact that it is not the on-off state or the flight mode switch that affects the battery life, but the temperature when charging. Therefore, no matter whether your mobile phone is on or off, and whether the flight mode is on or off, keep your mobile phone charging at a good temperature.
The first is deep charge and discharge. Deep charging and discharging refers to using the battery with extremely low battery capacity of the mobile phone and then recharging it. There are different opinions about the impact, but I believe one of them is quite reasonable. That is, in the case of deep charging and discharging, the mobile phone is often in a state of high current charging. For most mobile phones, the power supply system has not been specially optimized, and the calorific value of high current charging will still be high. This will definitely affect the life of the battery.
The second is to play mobile phones while charging. In fact, it is wrong to say that lithium batteries discharge while charging. Lithium batteries do not discharge when charging, because the charging voltage is higher than the battery voltage. The real reason is that the charging power supply needs to charge the battery on the one hand, and support the power consumption when you play the mobile phone on the other hand. Especially when running large programs and playing games, the charging current is particularly large, which leads to the increase of the temperature of internal IC devices, which will also increase the temperature of lithium batteries and affect the battery life.
The third is to put the phone under the pillow when charging. Because when the mobile phone is charging, it will emit some heat more or less. If the mobile phone is placed under the pillow, the heat cannot be dissipated when the mobile phone is charged, which makes the battery temperature of the mobile phone rise continuously. In this case, it may affect the life of the mobile phone battery, or it may cause the battery to spontaneously ignite, cause a fire, and even threaten your life.
If you must say it, you'd better turn it off when charging and put your mobile phone in a ventilated and cool place. Because there is no need to run any program when the mobile phone is completely turned off, the consumed current is reduced to a certain extent, and the input charging current can be avoided from being too large.
I don't think it's a big problem if you don't turn off your phone and turn on or off the flight mode. Because turning on flight mode will really reduce the information exchange between mobile phones and base stations. But now there are some apps that constantly check your network status in the background. When you turn on airplane mode, he may think that your current network status is not very good, which will make you more. Check the network status frequently. If you encounter some apps that are not very rigorous in programming, it may increase the resource occupation of the system. However, now all mobile phone manufacturers have done a good job in system optimization when charging, so the impact of these factors is minimal.
Generally speaking, pay attention to whether the temperature of the mobile phone is abnormal when charging. If you already feel very hot, you must take timely measures to cool down, or simply stop charging. When you use your mobile phone at ordinary times, you can charge it with your mobile phone. Lithium batteries have no memory effect.
If my answer is helpful to you, I hope to give you a compliment and pay more attention. I will also work harder and contribute more interesting scientific and technological knowledge. Thank you!
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It doesn't matter whether the phone is on or off when charging, and it has nothing to do with the flight mode.
Mobile phone charger is a switching power supply, and the principle of switching power supply is automatic switching. When the battery loses a lot of power, it will be charged. When the charger is plugged into the phone interface, it will start charging. At first, when the current is high, the temperature of the mobile phone and charger will rise. As time goes by, the battery capacity increases, the voltage gradually increases, the charging current decreases, and the temperature gradually decreases. When the battery is fully charged, the battery reaches the rated voltage, the charger is automatically turned off, and there is no current output.
The mobile phone is charged when it is turned on, and it is charged while playing with it. Because the mobile phone consumes electricity, the charging current is larger than that when it is turned off, and the heating value is higher and the temperature is higher, but it is within the allowable range without any harm.
Battery explosion is an individual battery quality problem. The explosion of so many mobile phones and Samsung mobile phones in the world is an individual phenomenon.
Charge your mobile phone before going to bed at night. Whether it is turned on or off, it will automatically turn off when it is fully charged. It's cool to get up in the morning and touch your mobile phone or charger. This is the evidence. So you can have a good sleep.
Invited to answer questions in this industry.
You don't need to turn it off when charging. Many mobile phones can't turn it off when charging, and you don't need to turn on the flight mode.
At present, the batteries of our mobile phones are all lithium-ion batteries, and the working principle of lithium-ion batteries determines that it is impossible to charge and discharge the batteries at the same time.
When the mobile phone is charged, the battery actually exists as a load in the whole circuit, and the power supply of the mobile phone itself is provided by the charger of the mobile phone.
The only difference between power-off charging and non-stop charging is the charging speed. Even if the mobile phone itself is in standby state, there will be some background applications, and there will be some signaling interaction of mobile communication, which will consume some current and reduce the current provided for battery charging.
But if you don't play games while charging, the power consumption of these will not be very large, so it won't lead to a long charging time.
Flight mode was originally a mode of turning on the mobile phone on the plane. In fact, this is also the role of rumors.
A long time ago, the base stations in American communication industry were all 2G base stations, and the capacity of base stations was limited. However, users on the plane will frequently switch between multiple base stations, which takes up a lot of capacity of the base stations and easily causes congestion of the base stations around the airport.
Therefore, when the American aviation industry asked whether the mobile phone would cause flight navigation problems, the communication industry gave a very vague answer, which led the aviation industry to require users to turn off their mobile phones on the plane.
Mobile phone flight mode Now all mobile phones in the world use "Huawei's flight mode patent", that is, the mobile phone can turn off the mobile communication network and turn on Wifi at the same time, which can save a little current when charging, but the specific application difference will not be obvious.
In short, it is not necessary to turn off the phone and turn on the flight mode when charging, except that the phone charges faster, but it may miss answering the phone, which is not worth the candle.
Just open it when charging.
The simple point of the flight mode is to make the signal of the mobile phone zero without turning it off, so it is named because it is suitable for use on the plane. However, you can choose this function when you don't want to be disturbed by text messages or phone calls, but you are afraid that turning on and off the phone is annoying. The flight mode is to turn off the telephone communication function, that is, you can't answer the phone and send text messages, and there is no signal contact with the base station. Don't try to contact the base station.
Because cell phone signals will interfere with the electronic equipment on the plane, it is not allowed to turn on the cell phone on the plane. In this mode, the related functions of mobile phone signal are turned off, and the mobile phone can continue to use other functions, such as checking the phone book and enjoying articles and movies on the mobile phone. So it's called flight mode.
Most of the power of the mobile phone is consumed by the signal. Turning off the signal in flight mode is very energy-saving, so some users will use flight mode instead of turning it off at night.
The mobile phone has software that can start and cancel the flight mode regularly, which is called "automatic flight software".