This thing is a penny of goods, certainly not as good as Huawei's original good, the internal structure is not the same, although the same can charge, but the heat resistance is not the same, I still do not recommend buying too cheap charging bank and charger, security risks.
I hope the above answer can help a lot of friends, thank you for your support and encouragement, I will continue to try my best to answer all your questions for you.
The lowest price of 20 yuan may just be a charger or a cable