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.