Green mode bypasses unused electrical components in good power conditions to achieve very high operating efficiency without sacrificing any protection. Pure sine wave output on battery simulates utility power to provide a high degree of compatibility for active PFC (power factor corrected) servers and sensitive electronics. LCD status display provides key UPS status at a glance. It has multiple status indicators with load and battery bar graphs. Cold-start capable provides temporary battery power when the utility power is out. Temperature-compensated battery charging prolongs battery life by regulating the charge voltage according to battery temperature.