10000mAh (3.7V, 37W) Battery capacity, Real output at 5500mAh (5.1V, 2.6A)
.To charge the power bank, fast please buy the SKU add 17W USB Charger (5V 2.4A Single output, 5V 3.4A Dual output)
It can charge xiaomi 9 2.2 times when full of power, and there is still power remaining.
Dual Output Interface
Redmi power bank standard version has two USB-A output ,It can charge for two smart devices at the same time. Dual output can reach up to 5.1V 2.6A
Dual Input Interface
Android Devices have either Micro USB or USB-C interface, just use your original Android cable to charge the power bank