Abstract: Wireless data transmission consumes a significant part of the overall energy consumption of smartphones, due to the popularity of Internet applications. The proposed method investigate the energy consumption characteristics of data transmission over Wi-Fi, focusing on user characteristics. The focus is on current and previous data usage profile of the user to optimize data usage of Wi-Fi by modeling energy consumption. Previous data usage profile will be tracked based on parameters such as time, battery usage etc. The background service will create a usage profile of a user to collect the data used by the user. This tracked information can be used to toggle the Wi-Fi on or off in order to reduce the battery consumption in smartphones. The proposed method enables effective battery usage by reducing useless battery consumption and detects abnormal battery usage by comparing operating times between normal and abnormal states.