Feature:1. Broad Utility: Widely used in sensitive and resistive loads instruments and equipment such as switches, routers, displays, firewalls, wireless applications, servers, intelligent security, laboratory equipment, computers, printers, roller shutter doors, electric drills, refrigerators, air conditioners.2. Backup Power Supply: During power outage protection, switches to battery mode, continuously ensuring continuous operation of digital devices until safe shutdown. Overvoltage, low voltage, and abnormal frequency of the power supply will also activate the battery working mode.3. With High Safety: The ultra wide voltage input range makes it easy to cope with harsh power grid environments. The battery will start due to overvoltage or undervoltage, resulting in an increase in charging and discharging frequency and a reduction in service life.4. Good Protection: Equipped with built in short circuit, overvoltage, undervoltage and other protection functions, high accuracy output of sine wave AC power ensures stable operation of equipment without frequency hopping.5. Easy to Install: Comes with a compact size and a light weight as well, the uninterruptible power supply is very convenient to install.Specification:Item Type: Uninterruptible Power SupplyMaterial: Alloy SteelBattery: 6 x 12V battery, battery capacity: 7AH x 6. Shipped with built in battery. Battery Voltage: 72V DCCapacity: 3000VA100.0%-110% Overload: Warning Only110%-130% Overload: 30s Automatic ShutdownOverload Greater Than 130%: immediately shut downCurrent to Peak Ratio: 3:1Output Waveform: Pure SineCharging Time: 4 hours to get to 90% capacity, with built in battery. .Package List:1 xUninterruptible Power Supply1 x User Manual