. 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. APC Smart-UPS X 3000 Rack/Tower LCD recognizes when external battery packs are attached and automatically adjusts runtime. Patent-pending operating mode bypasses unused electrical components in good power conditions to achieve very high operating efficiency without sacrificing any protection..