Battery Type Sealed lead acid Battery Size 12V/9AH User Replaceable Yes Hot Swappable Yes Typical Recharge Time 8 hours Replacement Battery BB Battery - HR9-12 Battery Quantity 8 Environmental: Operating Temperature 32°F to 95°F / 0°C to 40°C Operating Humidity 0% - 95% non-condensing | Maximum Operating Elevation 10,000 ft / 3,000 m Storage Temperature 5°F to 113°F / 15°C to 45°C Maximum Storage Elevation 50,000 ft. / 15,000 m General: Dimensions 19”W x 17”D x 4”H Weight 67 lbs. Certifications UL1778, cUL 107.1, FCC DOC Class B ROHS ROHS Compliant Rack Size 2RU |