https://blog.wongcw.com/2018/12/04/zmi%e7%b4%ab%e7%b1%b320000mah-usb-pd%e7%a7%bb%e5%8b%95%e9%9b%bb%e6%ba%90qb822%e9%96%8b%e7%ae%b1%e8%a9%95%e6%b8%ac/