With the improvement of the screen resolution of smart phones, the CPU performance of mobile phones is becoming stronger and stronger. However, the battery life of mobile phones has always been a problem that has not been solved. There are fewer and fewer mobile phones that can support a whole day under heavy use.

So we are very accustomed to charging our mobile phones before going to bed at night, charging them all night, and then going out with a 100% power mobile phone after getting up.

But will it damage the cell phone battery after charging all night?

Although current smart phones already have a very good overcharge protection mechanism to prevent damage to mobile phone batteries caused by charging. However, this mechanism is still unable to control the heating of the battery, especially when people put their mobile phones under their pillows to charge all night.

A few days ago, according to the data report of the data research organization Battery University, the mobile phone is only charged to 40% at 40 ℃, and the battery can retain 85% of its life after one year; After charging to 100% of the power, only 65% of the service life is left after one year. In other words, the higher the temperature, the more full the charge, and the faster the battery life will decay.

Therefore, data research institutions suggest that mobile phones only need to charge the battery to 40% - 80%, because the battery has the longest service life. It is also recommended to charge the battery for several times in a short time.