Dry batteries for radio use

Among the standard assemblies of dry cells adopted by the conference held at the Bureau of Standards, 1921, there were included two batteries for radio use. Since that date the demand for dry batteries for radio purposes has increased very greatly and the conditions of use have been considerably changed. It appears desirable, consequently, to revise the specifications for the performance of such batteries. In anticipation of another conference to consider this problem the Bureau and a number of battery manufacturers have been carrying out extensive tests in order to determine the type of performance tests to be established and proper numerical values for these requirements. The matter has also been taken up by a committee of the American Electrochemical Society on which the Bureau is represented. It is planned to call a conference of dry cell manufacturers and others interested to meet at the Bureau within the next few months.