On the Temperature Rise in Lead Accumulators

Abstract

It has been generally conceded by battery specialists that temperature above 38°C in lead accumulators lessens the life considerably. Numerous experiments conducted by the author with the “Excide” battery have shown, however, that even above this temperature, the life of the accumulators is not much affected. It was also proven that there is a most economical temperature for accumulators and this is dependent on acid density. The latter part of this paper is taken up by the author's theory of temperature rise in lead cells and its relation to temperature of the surrounding air, density of the acid solution, current density and the method used for cooling the cells. Sufficient experimental data is presented in this paper for reference.