Design, Implementation, and Study of an IoT-Based Battery Life Cycle Tester and State of Charge Indicator

Abstract

AbstractBatteries have varied uses in our day-to-day lives starting from using them in several electronic instruments like mobile phones, UPS, car batteries to even submarines, and non-conventional power plants. Even with the increase in electric vehicles, there is also greater demand of batteries. So, to know the quality of the battery, a benchmarking is very necessary to find out the battery with highest reliability and life. In this paper, we have illustrated an IoT-enabled battery life cycle tester, which comprises intelligent charging and discharging units, measurement units, data logging, remote monitoring, and communication sections for data acquisition (Mutagekar et al. in Designing a high performance battery life cycle tester. 2016 first international conference on sustainable green buildings and communities (SGBC), 2016 [1]). For this device, input parameters could be manually set depending upon the specification of the battery (e.g., rated battery voltage, battery capacity, full charged voltage, low battery voltage, and charging/discharging rate), thus making it compatible with all types of batteries. This device charges and discharges the given battery continuously, monitors the parameters, and logs the data. The gathered data are further used to decide upon the state of charge/depth of discharge and also predict the life cycle of the battery without spending the entire time of complete life cycle of the battery. This device can also precisely measure the actual capacity of a battery. State of charge indicator is like a fuel gage especially in the application areas of electric vehicle. Suitable measures have been taken to improve the life of the battery by preventing substantial damage to the battery by prevention of overcharging or deep discharging at specified temperatures.KeywordsIntelligent charging and dischargingState of charge (SoC)Battery life cycleDepth of discharge (DoD)