• 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 |