 Battery Extension Pack For F1500-UPS and MB1500, Increases Backup Runtime By 2 To 4 Times. 2U configuration supports both rack and tower mounting. Rigid metal construction allows for placement in areas with a demanding environment. User replaceable fuse which is easily accessed from the rear panel. Battery User Replaceable Yes Typical Recharge Time 8 hours Replacement Battery BB Battery - HR9-12 Hot Swappable Yes Battery Type Sealed lead acid Battery Size 12V/9AH Battery Quantity 8 Environmental Storage Temperature 5°F to 113°F / 15°C to 45°C Operating Temperature 32°F to 95°F / 0°C to 40°C Operating Humidity 0% - 95% non-condensing Maximum Storage Elevation 50,000 ft. / 15,000 m Maximum Operating Elevation 10,000 ft / 3,000 m |