AUTOMATIC BATTERY CHARGING SYSTEM ON ANDROID SMARTPHONE Dzaky Satria, Mohamad Ramdhani, Cahyantari Ekaputri
Faculty of Electrical Engineering, Telkom University Jl. Telekomunikasi Jl. Terusan Buah Batu No.01, Sukapura, Kec. Dayeuhkolot, Kota Bandung, Jawa Barat 40257, Indonesia
Abstract
A smartphone needs a battery source to work well. During the battery charging process, the state of charge can be increased by up to 100%. One habit in charging batteries is to leave the smartphone connected to the charger all night long. Batteries that are already 100% but still connected to the charger will continue to receive an electric current even though a small value can cause a decrease in battery life and durability. This final project aims to create an automatic battery charging system based on the Android operating system. The result of this system is when the percentage limit that we have set is the same as the percentage of the battery on the smartphone, the system will automatically cut off the incoming current so that the charging process will stop. This system is designed using a microcontroller, Bluetooth module, relay module, Android apps, and smartphone with Android operating system. The tests carried out are the suitability of the apps with the smartphone, the charging and discharging conditions on the system, and automatic battery charging. From the results of tests conducted by the system can cut the current to a value of 0 amperes from the charger manually and automatically controlled through the apps, the apps can be used on smartphones that have Android version 2.1 or higher.
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