NEW TECHNIQUE FOR DETERMINING BATTERIES SERIES RESISTANCE

this paper the electrical behavior of lead acid battery (LAB) energized by solar cells array is investigated. The internal series resistance of the battery under test is experimentally determined. The electrical performance of the battery under discharging condition through resistive load and its series resistance are also experimentally obtained. The open-circuit condition of the battery during charging and discharging are investigated and analyzed. Mathematical models for internal series resistances under charging and discharging conditions are determined.