Recently, Harbin and other northern regions have become popular tourist destinations, and many tourists are standing in the cold outdoors, and are preparing to show off their skills and take more beautiful **, but they have encountered an emergency "strike" on mobile phones - turned off.
Source: Kale** Photography Jia Qiong.
In fact, for smartphone users in cold regions in the north, such as Northeast China and Inner Mongolia, "mobile phones are frozen and turned off" is not a new thing, and many people have encountered it.
There is a cold call"Freeze to shut down".
The normal working temperature of the mobile phone is 0 30 °C, and in extremely cold weather, the phenomenon of it being frozen and shut down does exist.
Under cold temperature conditions, the electrolyte resistance of lithium batteries used in mobile phones increases, the ion diffusivity of the positive and negative electrodes of the battery becomes worse, the lithium-ion activity gradually decreases, and the discharge ability of the battery becomes weaker. At this time, the mobile phone is easily automatically recognized as out of battery and automatically turned off.
Generally speaking, as soon as the temperature drops to minus 10°C, the screen of the smartphone starts to dim and enter a low battery state. At minus 20°C, it is almost impossible to turn on. At minus 30°C, neither the screen nor the battery can be used.
In addition to being frozen and turned off, many netizens reported that the mobile phone also experienced a rapid decrease in power. Some netizens said, "It's quite incomprehensible, after getting off the bus, 32% of the electricity on the mobile phone was frozen and turned off; When I went back to the dormitory and plugged it in, it turned on to 87%. ”
Source: Internet.
What to do to help the phone"Anti-freeze"?
Avoid direct exposure of your phone to the outdoors. When the temperature is low, it is best to keep the phone in the pocket of your underwear or in a relatively warm place such as a pocket or backpack. Conditional friends can buy a thicker mobile phone case for the love machine, which plays a role in protecting the mobile phone and slowing down the power loss rate of the lithium battery.
Call with a headset. When acting in the case of sudden changes in temperature, use the incense machine to talk, and avoid direct exposure of the mobile phone.
Reduce screen brightness. The biggest killer of mobile phone battery is not CPU and hit**,But the larger and larger mobile phone screen,The default setting of many mobile phones is to automatically adjust the screen brightness,In this way,When the light is strong, the mobile phone will generally work at the highest brightness,And the power consumption at this time can be measured by the speed of dropping 1% in two minutes。 Therefore, if you want to save power, you can properly consider reducing the brightness of the screen.
Turn off push notifications. As the app becomes more and more, the "notifications" received by the mobile phone are also increasing, but if you don't want to consume power, you should let it rest as much as possible - turn off some push notifications, WeChat, and other communication software, you can keep notifications as appropriate to avoid delaying things, and others can be selectively turned off or all turned off.
Reduce sound and vibration. The power consumption of the mobile phone is also reflected in the sound and vibration, reduce or turn off the ringtone of the mobile phone, and try to avoid ringing and vibration at the same time, and reduce some unnecessary sound options, such as: turn off the key sound and lock sound, which can also play a role in reducing power consumption.
Personal hotspot, Bluetooth, Wi-Fi, GPS, ready to use. After the personal hotspot, Bluetooth, WLAN, and GPS functions are turned on, the device function module will continue to receive and send signals, and signal transmission will also consume, so it is recommended to turn on and on, which can reduce a certain amount of power consumption.
Control the temperature difference to avoid sudden cold and hot temperatures. If the temperature difference is too large, condensation will be formed, causing the motherboard and other parts to be damp, resulting in a crash or even unable to turn on, so if the phone freezes and shuts down, you can take it indoors and wait for it to warm up before turning it on.
Charge in a warmer environment. In a low-temperature environment, the low-temperature protection mechanism of the carp battery will prevent the chemical reaction of substances in the battery, so it cannot be charged or the charging speed is slowed down. In a warmer environment, lithium batteries can work well, but it should be noted that overheated environments will also cause lithium batteries to be scrapped.
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end**: China's well-off network.
Author: Fenghua.
Review: Gong Zimo.
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