In our daily life, we often encounter all kinds of problems when using the portable power bank. For those who don't know about the portable power bank, it's very difficult to solve the problems. We are most likely to have common faults, such as unable to turn on the machine suddenly and no response to the button. So in the following, we analyze the two most common problems:

    1. The portable power bank has no power

    The first thought of most of us is that the portable power bank has no power, so it can't be turned on normally. Most of the  power bank is a long press a few seconds power button will be able to use normally. If we press and hold for a few seconds without any response, we can roughly judge that the portable power bank can not be turned on normally because there is no power.

    2. There is a short circuit inside the portable power bank

    In the process of our daily use, many kinds of situations will lead to the internal short circuit of the portable power bank. If the power bank has a short circuit, it will enter the self-protection mode, which will cause the portable power bank can not switch on and off normally. This situation is nothing more than to protect the internal cell of the portable power bank and prevent the explosion of the portable power bank due to the short circuit. So in this case, we just need to connect the portable power bank to the charging port, and after charging it for a few minutes, we can return to normal switching on and off.

    3. I don't know how to turn it on or off

    Many consumers are completely unfamiliar with the new  power bank when they buy it. Even it's not clear where the on-off key is, so the internal manual shows its importance at this time. Please make sure to read the contents of the manual, find the correct on-off key, and then carry out a series of operations. Most chargers can be used normally after long pressing for a few seconds. Occasionally, some niche brands may need to press the on / off button several times to see the indicator light flashing.