The various wireless mobile device and sensor detection are very popular in the market recent years, the common feature of those devices are small and light to be carried conveniently. Moreover, its power resources must rely on battery to supply those devices. Hence, it will be crucial to have fast and efficient charging method. In order to meet this purpose for various devices under limited battery capacity, here this paper brought out an idea, by using Charging Schedule to improve wireless charging A4WP method, to meet this requirement. The wireless charging method of Alliance for Wireless Power (A4WP) can be calculated effectively and be allocated charging demand. Due to the total power of A4WP is limited; the charging current is decided to device equally which is not suitable for special needs device. The user can charge his/her devices in shorten of time with lowest algorithm by having method of this paper discussed. This is not only fulfilling the needs of charging for the most demand device, but also the rest of devices that are waited for to be charged. Charging Schedule could massive decrease charging calculated time to meet the best charging strategy and supply to the most demand devices charging in short time. Based on this structure, the purpose of this paper is to have better popularity of A4WP.In order to improve the charging device and fulfill user’s needs, there is new charging method and algorithm structure in this paper, which is Charging by schedule.