Design and implementation of three-stage battery charger for lead-acid battery

Charging method is crucial for any batteries. Over the years, many charging algorithm are developed to improve the charging method of lead acid battery. Uncontrolled charging of lead acid battery may lead to capacity loss and also reduce the life cycle of battery. To improve the charging method a simple battery charging algorithm is proposed in this paper. The IC (UC3906) is the core of the designed circuit to implement the algorithm. The result shows that the designed circuit based on the algorithm is effective during overcharging and supports the steady charging concept without consuming access charges.