The SM BAT supervision module monitors the condition and status of battery backups at telecom sites to provide information and alarms. It is installed on the DC power system and connected to the battery backup to measure voltages, current, and temperatures. This detailed battery backup information and any alarms can be monitored through a web browser or management software from a remote location. This allows maintenance to be optimized for remote sites to lower costs and increase battery backup availability through automated testing and monitoring.