How Reliable is Ohmic Battery Field Testing?

For many years management, standards organizations, field service groups and technicians have questioned the validity of field test results using ohmic testing. Though IEEE, test equipment manufacturers, battery suppliers, service companies and end users have validated ohmic readings, the processes used in collecting the ohmic test data and analyzing this data are in question. 

Accuracy of baseline values, technician errors and faulty analysis all contribute to error rates as high as 40-50%. With error rates of this magnitude (almost one in two tests being potentially invalid), it is no wonder that ohmic field test results are being challenged, and improved battery testing and maintenance solutions being sought. This white paper explores the reliability of ohmic battery field testing and outlines the alternatives.




Narada Power Source Co., Ltd will be exhibiting in booth 2221