Design of Mobile Application for Monitoring Battery Condition Using Internet of Things Technology

Battery is a vital component in electric vehicles (EVs). The battery needs more attention to preserve the battery performance. Since long-term use of batteries can make the battery performance decline and degradation. However, a supervised system that can inform the battery condition is rarely used. The monitoring system is important for the users to understand the battery condition and take preventive moves to the battery. Thus, the battery can have a long-life cycle. Therefore, the battery monitoring system is proposed in this study. The proposed system gives information on battery conditions supported by accurate sensor devices, such as voltage, current, and temperature sensors. Those sensor measures the fundamental parameter of the battery to protect the battery. The battery's data from the sensor were processed by the microcontroller and sent the data to the mobile apps via Bluetooth connectivity. Using IoT technology, the proposed system gives easiness so that the battery condition can be supervised everywhere. The proposed system has excellent performance by testing with accuracy testing and linear regression. The result shows minimal error and high accuracy, more than 98%. Thus, the result indicates that the proposed system can control the voltage, current, and temperature to keep the battery in the allowed condition. Moreover, the application also performs excellently by showing the information according to the data sent by processed data from the microcontroller.