A new cylindrical lead-acid battery has been developed to provide reserve power to sustain telephone service during power-failure conditions. We discuss in this paper the usage of batteries in the modern telephone plant, review the difficulties encountered with existing cell designs, describe in detail special features of the new design, and outline the scope of the overall development program.
No takes yet. Share an insight, caveat, or question.
Koontz et al. (1970) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: