The main factors are as follows:
1, plug output voltage is not enough.
This is determined according to the charging principle, it must be a high voltage flow to a low voltage, the mobile phone is generally 3.7V, generating a high voltage flow to a low voltage, charging. However, if the plug voltage is not enough, it will be intermittent charging.
2, plug output current strength is not enough.
3. It's about the phone itself. It is possible that the resistance value of the mobile phone is too large, in fact, the possibility of this situation is very small. It's just mentioned here.
4. Replace the data cable and charging head. It is recommended to take the phone to the factory maintenance point for testing