ATEN UPS Battery Box extends battery runtime when used with ATEN UPS systems. Users will have an extra time to save valuable data from any unexpected power shutdowns Package Contents 1x Battery Pack 1x Rack Mounting Kit 1x Rail Slide Kit 1x Battery cable 1x Tower Extend Stand 1x User Instructions Electrical Nominal Input Voltage 24V Nominal Output Voltage 24V Maximum Output Current (Total) 50A Max Battery Battery Type Sealed Lead-Acid Battery Size 12V/9Ah Battery Quantity 4 Physical Properties Rack Unit 2U Dimensions (L x W x H) 8.80 x 43.80 x 38.00 cm (3.46 x 17.24 x 14.96 in.) Weight 17.10 kg ( 37.67 lb ) Environmental Temperature (Operating / Storage) 0 – 40 °C/-15 – 45 °C Humidity (Operating & Storage) 0 – 90% (non-condensing) Elevation (Operating / Storage) 10,000 ft (3,000 m)/50,000 ft (15,000 m) Certifications Certifications cTUVus Approvals RoHS Compliant Note For some of rack mount products, please note that the standard physical dimensions of WxDxH are expressed using a LxWxH format.