Hello, I have a problem with the power bank I recently bought. The model is MANTA MPB980RG 8000 mah. The problem is that if I unplug the power bank from the charger and charge the phone directly with the power bank, it all works. However, when I wanted to charge the phone later, the lights turned off and after connecting the power bank to the phone, it did not charge, and the lights did not turn on. I will add that the power bank is charged, I tried to use other USB cables and the same problem occurred. The same thing happens on other devices. If anyone has had such a problem or knows how to solve it, please kindly answer me quickly. Thanks in advance.
