33 w
The k40 is 33w fast charging, equipped with 4520 mah capacity non-removable battery, support for fast charging, support QC3 \/PD3.0 fast charging protocol. Under the premise of endurance, K40 does not sacrifice the endurance experience and pursues the ultimate light and thin feel.
The Mi k40 supports 33w fast charge, built-in 4520mAh battery capacity, is equipped with Qualcomm Snapdragon 870 processor, and configured with LPDDR5 and UFS3.1 memory combination. Under the condition of opening 120Hz all day, it can basically maintain daily use.