APC Smart-UPS RT 48V Battery Pack Includes: Installation Guide, User Manual Features: Cascading Capabilities Compact and Lightweight Hot Swap Batteries Quick Plug-in Connections User-replaceable batteries Technical Specifications Battery type Maintenance-free sealed Lead-Acid battery with suspended electrolyte : leakproof Battery mounting Stand alone battery stack Battery manufacturer Panasonic Expected Battery Life (years) 3 - 5 Pre-Installed Batteries 2 RBC™ Quantity 2 Net weight 65 lbs. ( 30 kg ) Maximum height 3.34 inches ( 8.48 cm ) Maximum width 17 inches ( 43 cm ) Maximum depth 19 inches ( 48 cm ) Shipping Weight 71 lbs. ( 32 kg ) Shipping Width 24.82 inches ( 63.04 cm ) Shipping Height 11.25 inches ( 28.58 cm ) Shipping Depth 23.38 inches ( 59.39 cm ) Color Black Units per Pallet 12 Operating Environment 0 - 40 °C ( 32 - 104 °F ) Operating Relative Humidity 0 - 95 % Operating Elevation 0-10000 feet ( 0-3000 meters ) Storage Temperature -15 - 45 °C ( 5 - 113 °F ) Storage Relative Humidity 0 - 95 % Storage Elevation 0-50000 feet ( 0-15000 meters ) Standard warranty 2 years repair or replace, optional on-site warranties available, optional extended warranties available