Battery monitoring is vital for most electric vehicles(EbVs), because the safety, operation, and even the life of the passenger depend on the battery system. This attribute is exactly the major function of the batterymanagement system (BMS)—to check and control the status of batteries within their specified safe operating conditions. In this paper, A Battery Management System is introduced where this system is used to monitor the battery at every time and temperature is measured at each battery and analyze the battery temperature at charging and discharging time. BMS block diagrams have been proposed using various functional blocks. The State of charge (SOC) estimation has been implemented using Coulomb counting method and the State of health(SOH) of the battery by using CCCV.We employ IOT to automatically store the battery, temperature, and voltage data on the WEBSITE OF THINGSPEAK. Therefore, a thorough investigation of the Batteries is anticipated. Therefore, if a problem arises, we can address it quickly