Reason analysis:
1, the charger caused. Many chargers with the same interface have different current standards, and if they are not original, there may be problems.
2, the power grid pressure is unstable, if suddenly there is a large current through, there will be burning situation. In this case, power off immediately to prevent damage to the phone. Notes for mobile phone charging: 1, try to use the original charger, you can also use a regular brand of non-original charger, resolutely put an end to the use of cottage chargers. 2, try not to use the phone when the phone is charging, especially when using a non-original charger.
3, avoid using up the battery of the mobile phone before charging, which will damage the life of the mobile phone battery, because the current battery is lithium battery, do not need to be as deep as the lead-nickel battery.
4, although today's smart phones can automatically stop charging after the battery is fully charged, but it is best not to charge the phone overnight.
5, the mobile phone is also a machine, so it also needs to rest, it is best to shut down once a week, for the protection of battery life will have greater benefits.