Generally speaking, under normal circumstances, the Xiaomi 10w charging head with 20w wireless charger can also be normally output, but the charging power cannot reach 20 watts. The maximum output power of the 20-watt wireless charger is 20 watts, which requires that the input of the power adapter must be greater than 20 watts. The actual use of a 10 watt charger can also be charged normally, but the actual output power will not exceed 7.5 watts.
This is rechargeable, but the charging power will be limited by the 10w of the charging head