... UPS850VA/450Watts,AVR, CPU control,SMT PCB, LCD display,USB,4 battery backup &2 surge protection ... 5 MinutesHalf Load 6.0 MinutesCharge Time12 Hours(90%)LCD Status DisplayNormal,Fault,Battery,Charge,Overload,Load,Battery ... Protection120%-150%Battery Low Voltage Protection10VOutput Short Circuit ProtectionOutput auto cut off,Buzzer beepingEMI FilterYesTel/Fax/Modem JackYesRegulatory ApprovalsCEOperating ...