1. When the battery is charged, the charging voltage at both ends of the battery is higher than the terminal voltage of the battery, and the battery does not discharge. At this time, the battery is running in the circuit as a load, and the power supply of the various components of the phone is provided by the charger. Therefore, using the phone while charging has little impact on battery life in theory. However, it is still not recommended to play with the phone while charging, so that the phone will be hot.
2, affect the battery life, in real life may encounter, generally:
(1) Overcharge: the battery charge time is too long, and the charge exceeds the rated capacity of the battery. Now the mobile phone generally has a protection mechanism, after the battery is fully charged, the internal circuit of the mobile phone automatically disconnects the charging circuit. However, it does not exclude some poor quality seat charger or universal charger without designed protection circuit. So be careful when using a seat charger or universal charger.
(2) Over-discharge: Usually the phone will automatically shut down when the battery is too low (due to the low battery voltage). However, if you restart it, you will find that the phone still has power to use (battery voltage rises). Automatic shutdown is a manufacturer of mobile phone battery protection mechanism, the battery overdischarge will cause serious damage to the battery life, so the power is too low, please charge. It is recommended to charge the battery when it is convenient to ensure that the battery has sufficient power.
(3) Overtemperature: too high battery temperature will also affect the service life of the battery. The frequent discharge of the battery will heat up, and the overtemperature of the battery in actual use is usually due to this reason. Therefore, when playing large games or running other power-consuming programs, you need to pay attention to heat dissipation and control the running time of the program.
(4) Undertemperature: lithium batteries are not allowed to charge when the battery temperature is below 0 degrees Celsius.
(5) Overcurrent: The use of a high-power charger to charge the battery will cause damage to the battery. But now manufacturers will alarm when the charging current is too large. Of course, whether the charger and the universal charger have an alarm function is not known. The worst case of overcurrent is short circuit. Short circuit may cause battery explosion, burning, please do not try.
[The above answers are for reference only ~ welcome to add]
The cause of disconnection may be:
1: The charger is in poor contact.
2: The power supply voltage is unstable.
3: The phone charging port is not good.
solution
1. Wipe the charging plug and try it again. Replace the charging cable if there is a problem.
2. Confirm whether the voltage is stable. I can't control that. Charge only when the voltage is stable.
3, the mobile phone jack is damaged, to the repair shop to replace the mobile phone jack.
Mobile phone charging precautions
Don't play games while charging. Mobile phone battery charging should be used as little as possible, especially should not play large games, otherwise charging while discharging, the damage to the battery is very large.
Remove the phone case while charging. In order to protect the mobile phone, many people will put on a mobile phone cover, but the mobile phone cover is not conducive to the heat dissipation of the mobile phone, people should take off the mobile phone cover when charging.
Use the original charger. People usually charge mobile phones should try to use the original charger, so as to minimize the damage to the battery.
Do not overdischarge. Excessive discharge of the mobile phone is very harmful to the battery, usually the mobile phone should be charged in time to about 20% of the discharge, to avoid excessive discharge.
The cause of disconnection may be:
1: The charger is in poor contact.
2: The power supply voltage is unstable.
3: The phone charging port is not good. Solution: 1. Wipe the charging plug and try it again. Replace the charging cable if there is a problem. 2. Confirm whether the voltage is stable. I can't control that. Charge only when the voltage is stable. 3, the mobile phone jack is damaged, to the repair shop to replace the mobile phone jack.