APC Replacement Battery Cartridge #31 RBC31 Includes: All required connectors, Authorized Return Service (ARS) tag (currently available in the US only), Battery recycling guide, Installation Guide, Reusable packaging Features Hot Swap Batteries Plug-and-Play installation Batteries & Runtime Battery Type Maintenance-free sealed Lead-Acid battery with suspended electrolyte : leakproof Battery mounting -- Expected Battery Life (years) 3 - 5 RBC™ Quantity 1 Replacement battery cartridge note Comes as a complete battery assembly,batteries and metal tray housing Physical Net Weight 24.70 lbs. ( 11.23 kg) Maximum Height 2.75 inches ( 70 mm) Maximum Width 6.50 inches (165 mm) Maximum depth 16.50 inches (419 mm) Shipping Weight 28.00 lbs. ( 12.73 kg) Shipping Width 11.50 inches (292 mm) Shipping Height 7.50 inches (191 mm) Shipping Depth 21.50 inches (546 mm) Units per Pallet 30.00 Environmental Operating Environment 32 - 104 °F (0 - 40 °C) Operating Relative Humidity 0 - 95% Operating Elevation 0-10000 feet (0-3000 meters) Storage Temperature 5 - 113 °F (-15 - 45 °C) Storage Relative Humidity 0 - 95% Storage Elevation 0-50000 feet (0-15000 meters) Conformance Standard Warranty 1 year repair or replace