1, the charger is not original. Charger includes an adapter and charging line two parts, different models of mobile phone adapter power is different, different charging line support current is not the same, the use of non-original charger may be because the charger and the phone does not match, resulting in slow charging, so try to use the original charger charging.
2, the adapter, charging cable, poor contact between the board. Sometimes because the board jack is slightly loose, or the adapter is not plugged in between the charging line, the voltage is not enough when charging, or the charging is intermittent, and the natural charging is slow.
3. Charge it on your computer. Some people are used to charging the phone on the computer when playing the computer, so the charging is very slow, because the computer usb port current is relatively small, only a few hundred milliamps, much smaller than the current required by the mobile phone battery, so it is not necessary to try to charge on the plug-in board.
4. Start charging. Some people like to charge in the startup state, and even play with the mobile phone while charging, so that you will find that the mobile phone has not been full for a long time, this is because the power consumption increases, the power comes in and out, and the natural full charge is relatively slow. Generally speaking, the shutdown charging speed is the fastest, because the power consumption is the least, if you do not want to shut down, you can set the phone to flight mode, or turn off unnecessary power consumption procedures.
5, the charging port is not clean. When the mobile phone is used for a long time, the charging port tends to accumulate some dust, which will also affect the charging speed, therefore, you can use alcohol to wipe or brush the charging port with a small brush from time to time, so that the charging will be faster.
6. Charge when playing games, watching TV series, etc. Playing games and watching videos will cause the mobile phone to heat up. The mobile phone has an overheat protection design. When the temperature of the mobile phone is high, the current intensity of charging will be limited, resulting in slow charging. So try not to play games and watch videos while charging.