Intuitive LCD interface Provides clear and accurate information in multiple languages with the ability to configure the UPS locally with easy to use navigation keys. High frequency design Reduces or eliminates bulky transformers resulting in lighter units for ease of handling. Auto recognition of external batteries UPS recognizes when external battery packs are attached and automatically adjusts runtime. Predictive replace battery date Dynamically provides the month and year when battery replacement is recommended to aide in long term maintenance planning. Green mode Patent-pending operating mode that bypasses unused electrical components in good power conditions to achieve very high operating efficiency without sacrificing any protection. Energy meter Provides actual kilowatt hours of usage for energy conscious users. Outlet group control Turn on/off, reboot or shut down select outlet groups to save dispatching technicians to remote locations (for UPSs with switched outlet groups). Sequenced shutdown and restart Configure select outlet groups to shut down and turn on in a pre-determined order (for UPSs with switched outlet groups). Load shedding Turn off select outlet groups in a pre-determined sequence to shed less critical equipment and conserve runtime (UPSs with switched outlet groups). APC USB communications Enables communication with Smart-UPS RTD, SMX and SMT using the APC's historical proprietary USB usages InfraStruXure Central compatible Enables centralized management via APC InfraStruXure® Central.