Generally speaking, the quality of mobile power is related to the following factors:
1. The output voltage of the charging treasure is not enough. This is determined according to the principle of charging, it must be high voltage flow to low voltage, the mobile phone is generally 3.7V, the mobile power supply lithium battery is 3.7V, so it is flat, so the mobile power supply will be boosted to 5V when the output voltage, so that high voltage flow to low voltage, charging.
2, the power bank output current strength is not enough. When we are testing some mobile power supplies, the above nominal 800mAh discharge, but sometimes can not be discharged with this specification, this phenomenon will occur when the current strength is not enough, which is closely related to the voltage, the most fundamental is caused by the poor quality of lithium batteries.
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, related to the PCBA protection board of the mobile power supply. Mentioned in the first point, the protection board should play the function of overflow charging and overdischarge, and there is an MCU, which is used to boost the voltage, if the quality of the protection board is not good, it is unstable when the current passes through, leading to PCBA work, and then causing the charging bank to be unable to charge
If you have a problem with the charging treasure, you need to replace the charging treasure, generally only when there is a problem with the charging treasure battery, this situation will occur when you can go to the repair station phone is estimated to be the motherboard problem.
General charging treasure should be fast charging, there will be no such intermittent problems.
It is usually caused by the unstable interface of the charging bank
This may be caused by poor charging contact or poor data cable material, it is recommended to replace a data cable.