eng Science and Education Publishing American Journal of Electrical and Electronic Engineering 2328-7357 2016-12-10 4 5 148 151 10.12691/ajeee-4-5-4 AJEEE2016454 article Sambandh Bhusan Dhal sambandhdhal@gmail.com 1 Arun Agarwal 1 Kabita Agarwal 2 Department of Electronics and Communication Engineering, ITER, Siksha ‘O’ Anusandhan University, Khandagiri Square, Bhubaneswar-751030, Odisha, India Department of Electronics and Telecommunication Engineering, CV Raman College of Engineering, Bhubaneswar-751054, Odisha, India The objective of this research is to design a Solar Powered Portable Power Bank for mobile phone using sunlight as its ultimate power, which can be used effectively during disaster events. It has in-built solar panel which converts the solar energy to electrical energy. The charge is then transferred to a battery for storage of charge for further use, with the battery having a microcontroller indicating the percent of charge present in the battery. The battery is connected to a charging circuit having an USB port as output to the respective Mobile phones. http://pubs.sciepub.com/ajeee/4/5/4/ajeee-4-5-4.pdf solar energy portable disaster recovery battery