Industrial and consumer batteries are subject to normal and abnormal aging and also to occasional manufacturing defects. Battery tests and maintenance programs are essential to ensure reliability. Several battery testing techniques are available both on-site and remotely, each with different costs, as well as with technical strengths and/or weaknesses.
Taking into account both the criticality of the site, the age, the size of the battery and the results of previous tests, it is possible to set optimized maintenance timings, programs and tests procedures, that can be used to optimize the life and performance of permanently installed lead-acid batteries used for standby service, by combining the above said different techniques and distributing them dynamically during the battery life cycle.
Such a recommended practice provides guidance for determining when batteries should be replaced and it is applicable to fixed standby service applications where a charger keeps the battery fully charged and provides DC loads.
These are the technical rules stated in "IEEE 450-2010 IEEE Recommended Practice for Maintenance, Testing, and Replacement of Vented Lead-Acid Batteries for Stationary Applications". The IEEE assures the best known standards for UPS battery maintenance practices, including inspections and capacity testing. In fact, battery manufacturers often cite the those standards and require membership to maintain a valid product warranty.
Regardless of whether it is a data center, industrial facility or utility, adherence to the following standards is encouraged, based on the type of battery to be overhauled: IEEE 450 for lead-acid 8VLA9 IEEE 1188 for valve-regulated lead-acid 8VRLA; IEEE 1106 for nickel-cadmium (NicCad). All of these standards provide recommended practices for maintenance, testing and replacement of batteries for stationary applications. They address the frequency and the type of measurements that need to be taken to validate the condition of the battery. Adelsystem has developed an integrated battery tester inside the battery charger. It is an efficient concept that can work with all types of batteries. We talk about this technology and application in this article. We talk about Battery Care Concept!