Nowadays, people use mobile phones more and more frequently. Leisure, office and daily communication are inseparable from it. Therefore, the battery life of mobile phones has become particularly important.
The warning tone of insufficient power is particularly “harsh”. I believe many small partners have such questions: why should they remind to charge when the power is up to 20%?
Primary battery
Primary battery is also called non rechargeable battery. Chemical reaction will be carried out in the battery to convert chemical energy into electrical energy. The batteries that need to be replaced regularly in remote control, toys and hearing headphones are primary batteries.
Disadvantages: once the battery is discharged, it will cause permanent and irreversible changes to the battery. Once the power is exhausted, it can not be used again.
Secondary battery
The secondary battery is a rechargeable battery. On the contrary to the primary battery, it converts chemical energy into electrical energy. When the power is exhausted, it can be charged with a charger. Most of the mobile phones, computers and cameras we usually use are secondary batteries.
Disadvantages: even rechargeable secondary batteries will have a service life, and the power will become more and more durable with the increase of service time, which can explain why the power of the old mobile phone will drop faster than the new mobile phone after charging.
Why is there the power up to 20% reminder
The gradual decline of the battery is impossible to change, but we can delay the decline of the battery through some methods. The 20% power reminder is similar to a self-protection mechanism of the battery.
If the power is lower than 20% and continues to be used, the activity of the battery will be reduced, and the service life of the battery will be affected in the long run.
If you continue to use it when the power is less than 5%, it may cause excessive discharge of the battery and low internal voltage of the battery, resulting in failure to turn on and charge the mobile phone.
Correct way to charge mobile phones
Using regular charger
It is best to use the original charging equipment for mobile phone charging. If the original equipment is damaged, do not use a low-quality charger. It is also recommended to use a regular plug-in board for charging to avoid potential safety hazards.
Don’t charge while playing for a long time
Charging while playing will aggravate the fever of the mobile phone. If you play games and watch videos while charging phones for a long time, the temperature of the mobile phone will rise sharply. For a long time, the battery life of the mobile phone will also be shortened sharply, and safety accidents may be caused in serious cases.
Reminder: if there is something urgent to deal with, be sure to use the mobile phone while charging. Once the temperature of the mobile phone is abnormal, stop the operation immediately.
Charging in appropriate environment
The best working environment of mobile phone lithium battery is generally 0-35 degrees. In low temperature environment, the protection mechanism of mobile phone battery will cause slow charging, and the lithium battery will be unstable in high temperature environment.
Suggestion: try to charge your mobile phone in a well ventilated and radiating environment.
In addition, it is best to remove the mobile phone case before charging, or try to choose a thin mobile phone case. Generally speaking, the heat dissipation of plastic and leather mobile phone cases is better than that of silicone and metal mobile phone cases.
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