DESIGN AND CONSTRUCTION OF A SOLAR CELL PHONE CHARGER WITH BATTERY BANK ..

ABSTRACT This study focuses on the design and construction of a solar cell phone charger with battery bank. It is designed to meet up with the high demand of power supply needed to keep our cell phone batteries charged especially people in open public places like traders in Kejetia market in the Ashanti region of Ghana. A solar cell phone battery charger is an electrical device that converts the energy of sunlight directly into electricity by the photovoltaic effect. It does this by the use of photoelectric cell which when exposed to light, can generate and support an electric current without being attached to any external voltage source. This work is aimed at constructing a solar cell phone battery charger system with battery bank which receives 10V DC from the solar panel and converts it to the level that can be safe use to charge cell phone batteries. Based on the objective of the study, data was collected and analysed. A phone with battery capacity not exceeding 1300mAh was chosen and retested to ascertain its current level, voltage and other electrical complementary demand. The test was done using voltmeter and ammeter. After careful determination of the various capacities of the various components, the unit was then constructed taking into consideration a number of factors. The construction of this portable cell phone charger will therefore help the people in open public places where there is availability of sunlight to charge their cell phones.