1. Don't answer and make calls during "close contact"
Under charging state, the insulation between parts with dangerous voltage and accessible conductive parts is broken down or the contact current is too large, which is easy to cause electric shock to users. Answer and make calls when the mobile phone and charger are in close contact with each other, which is a common practice for young friends, and we should be more careful. In addition, inferior chargers are also easy to catch fire.
2. Direct contact is preferred
The original mobile phone charger is like a small power supply bureau, with overvoltage protection circuit and transformer device inside, which can convert high voltage to low voltage and AC to DC. Most common universal chargers on the market are produced by informal manufacturers without protective coils, which is easy to make the voltage or current too high and unstable. Too high voltage can easily inflate the battery and sometimes cause dangerous explosion.
3. Qualified quality is the key
When purchasing mobile phone chargers, you must choose qualified products from regular manufacturers, and do not try to buy unqualified products from irregular small manufacturers cheaply. Fire experts pointed out that a good charger has an overheat self-protection circuit inside. When its internal temperature reaches a certain value, it will automatically cut off the power supply and play a certain degree of protection.
4. Pay attention to ventilation and heat dissipation during "close contact"
When charging, the voltage of the mobile phone is higher than that of the standby state. If an unqualified battery or charger is used, and the charging environment is poor, such as high temperature, humidity, etc., accidents may occur, so please charge in a place with good ventilation and heat dissipation.
5. Try to be watched during "close contact"
The mobile phone should be charged when someone is present as much as possible, so that it can deal with abnormal situations in time. During charging, pay attention to the temperature of the charger and whether there is burning smell. If the temperature is too high, there is obvious burning or burning smell, stop charging first, and then charge after checking the cause and carrying out necessary treatment.
6. Unplug the plug after completion
After charging, remember to unplug the power plug, which can effectively prevent the power bus from causing fire.
