IoT-Based Battery Monitoring System for Electric Vehicle

The IoT-Based Battery Monitoring System for Electric Vehicles is developed to ensure safe, efficient, and reliable battery operation through continuous real-time monitoring and intelligent control. The system integrates an Arduino microcontroller with voltage, current, and temperature sensors to measure key battery parameters and display them on an LCD module. A NodeMCU module enables IoT connectivity by transmitting real-time data to the ThingSpeak cloud platform for remote monitoring, visualization, and analysis. To enhance safety, the system incorporates automated protection mechanisms: when abnormal conditions such as low voltage, overcurrent, or excessive temperature are detected, relays disconnect the load, LEDs provide visual indication, and a buzzer generates an audible alert. Additionally, a GSM module sends instant notifications to a registered mobile number. A DC motor is used to simulate the electric vehicle drive load, while auxiliary mobile chargers demonstrate controlled charging operations. Powered by a 12V battery and regulated supply system, the prototype offers a compact, cost-effective, and scalable solution for smart battery health monitoring and protection in electric vehicles, improving operational safety and extending battery lifespan.