55w. Mi 11 built-in 4600mAh large capacity battery, support 55W wired fast flash charge, can be full of 100% power in 45 minutes, but also support 50W wireless fast flash charge, 53 minutes can be charged to 100%.
Millet wireless charging reverse charging maximum power is ten watts, you can charge mobile phones can also charge headphones, this function is very practical, very good, thank you