Development of a Mobile Multiple Phones Charger for Isolated Use

Abstract: Mobile phones have become the basic necessity of life for people living both in the urban and rural communities in developed, developing and underdeveloped countries of the world. Presence of electricity is very important in making the best use of this basic device because it helps to keep it constantly available for use. As a result of lack of electricity in many developing areas despite electricity being basic, many of the populace residing in these places usage of mobile phones has been challenging because they find it difficult to maintain constant use of their mobile phones which requires the presence of electricity for charging them. The use of alternative source of energy to maintain charge for the mobile phone is a means to surmount this challenge. Various alternative source of energy for charging the mobile phones exist among which are wind energy, thermal energy, hydro power, nuclear energy and solar energy. Of all the sources of energy, solar energy plays a vital role at powering isolated applications and has the ability to be made available for small use. The objective of this work is to provide alternative source of energy for the charging of mobile phones which is an essential communication device for people living in the urban or rural communities. This work has provided an isolated multiple mobile phones charger that makes use of solar energy as its energy source. It makes use of 12V which it accessed from the solar panel which is reduced to 5V at its output for charging the mobile phones. It was discovered that it took the developed mobile multiple cell phones charger 60 minutes (1 hour) to charge an Infinix Android phone to its full capacity with the use of a battery bank and 120 minutes (2 hours) when use with only a Polyvinyl cell (Solar panel). It was also observed that the time taken to full charge is the same when used with the conventional Alternating Current (AC) source. This shows that the developed mobile phones charger is able to perform at the same rate the conventional source of energy performs because it took it the same time to charge the mobile phones, thus making it a good means and alternative to mobile phones charging. Therefore, rural dwellers and people living in areas in which there are no constant supply of electricity through the public utility companies or no supply at all can still make use and enjoy constant supply of power to there mobile phones through the use of this isolated mobile phone charger.