The MaxGreen MG-LI-REM-2050VA Offline UPS comes with 4 x 9AH battery, Input voltage range- 162-268 Vac, cold start capability, intelligent battery management, backup time up to 15 to 30 minutes depending on loads, recharge time less than 12 hours, no requirement for additional multi-plug, rear output sockets – 3 x Universal, Capacity 2050VA. It has RS232 & USB Port Cable & UPS Monitoring Software (Optional). It features EN 62040-1-1: 2003. High/Low Voltage, Overload & Short Circuit Protection, IP20. It has a sound level of <40db @ 1 meter. It has a 1-Year Warranty