Utility battery chargers for stationary battery installations are critical to maximize battery life while supporting the continuous loads on the dc system. This standard is applicable to battery chargers used for stationary applications. It was written to serve as a bridge between the utility application engineer and the charger manufacturer. It describes battery charger operating modes, performance, environmental/mechanical considerations, instrumentation and alarms.

This standard specifies the performance characteristics of battery chargers that continuously maintain a battery’s state of charge while simultaneously providing dc power to connected loads. These battery chargers provide transformer isolation of the dc output from the input and are designed for stationary applications. Telecommunication applications are beyond the scope of this standard.

The purpose of this standard is to provide requirements for the design, configuration and use of battery chargers for stationary applications.