부산대학교 도서관

As the regular usage of electronic appliances in these days were increased drastically. Mainly the development in the existed technology and the innovations of the product designers results this increase in the electronic utilities usage. Anyhow, these electronic utilities which includes smart watches, mobile phones, laptops, hair dryers need to be regularly charged for their optimized operation, simply said it rely on electrical energy for their operation. Now-a-days, the usage of electronic utilities such as laptops, mobiles and tablets have been rapidly increased. And these utilities must be regularly charged for their operation. However, charging these appliances whenever needed is the main issue. The aim of this paper is to introduce aproduct called multi-utility bag, which incorporating of all utility chargers at one bag that utilizes the standalone solar energy to charge these appliances along with a proper battery back-up in case of nighttime or cloudy days.