Date Added: Jul 2009
The battery system in a UPS forms the heart of the power protection benefit to the user. It is a key element which performs two functions: delivers energy during a power outage and stores energy efficiently for extended periods of time. That stored energy is instantaneously available when needed to support the critical load on the UPS. In order to perform the above functions reliably, the charge level on the battery must be maintained. At the same time, it is desired that the battery charge be controlled to maximize system efficiency and, more importantly, to maximize the service life of the battery system.