35.2/36Wh energy (9800mAh/ 20000mAh) Type-C port for input with up to 22.5W power the power bank can be charged to full power in just 2.7 hours. The power bank supports Max 33W power output for Type-C port. Redmi K40 Pro can be charged to 100% in 57 minutes 2 ports to output USB-A x 1, USB C x 1 Multi-protection to ensure safety, such as overcharge protection, high temperature protection, short cut protection.