1
Charles E Frailing, Thomas J Dougherty: Automatic battery analyzer. Globe Union, Neuman Williams Anderson & Olson, March 11, 1980: US04193025 (178 worldwide citation)

Apparatus for automatically testing automotive-type, lead acid storage batteries are disclosed in which three separate tests are made and the results thereof compared to predetermined standards in a specified order to maximize the information obtained about the battery. The three tests measure (1) w ...


2
Charles E Frailing, Thomas J Dougherty, Richard T Johnson: Automatic battery analyzer including apparatus for determining presence of single bad cell. Globe Union, Neuman Williams Anderson & Olson, March 30, 1982: US04322685 (166 worldwide citation)

There are described apparatus for detecting the presence of a defective cell in a lead-acid storage battery. The apparatus is included as a part of a larger apparatus for analyzing the condition of the battery and its suitability for further use in automobile lighting, starting, and ignition applica ...