In a SPV system batteries are subjected to varying environmental and loading conditions. The health and performance of a solar battery is affected not only by the depth of discharge but also by the operating temperature of the battery. The operating temperature comprises of ambient as well as internal temperature/electrolyte temperature of the battery. In a country like India, where the ambient temperature has wide variations, it becomes essential to consider the effect of temperature on battery while designing a SPV system. This paper presents the study of effect of both internal and external temperature on capacity of flooded lead acid battery samples with respect to charging voltage and capacity of the battery. A charging profile for usual operating temperature conditions is also suggested.