The paper took an indept analysis of two charge circuits and introduced a new model. The need to examine the properties of these charging circuits is in line with the need to pay more attention to harnessing the abundant renewable energy sources around us. Much attention was given to protection mechanisms necessary for the preservation of the life of the battery during storage, when in use and during the process of charging. The use of the model charger introduced in figure four has given reasonable comfort in the use the battery as an alternative energy source in homes and in the industry. The paper is aimed at providing automatic charging device that will be more convenient in application. This was achieved by incorporating three relays that ensured accurate functionality of the various protection circuits in the charger. The result is that the charge time for any battery can be predicted for the charging device and with the light and sound interfaces; the performance of the battery charger can be monitored. Human error in battery handling has been put under strict control.

Full text: IJEIR-327 Final.pdf