A diagnostic testing program for large lead acid storage battery banks

A justification for the need and a discussion of the methods to perform capacity discharge and intercell resistance tests on large storage industrial battery banks in standby applications are presented. Reliability and economic data are presented to demonstrate battery tank criticality, the causes and consequences of failure, and the need for comprehensive battery maintenance programs, which include battery diagnostic testing. Recommended test frequencies, replacement criteria, and the equipment required to perform these tests are included. The capability to maintain a standby power source during testing is provided