GENERAL VOLTAGE 36V AMPERAGE 60A BATTERY BATTERY TYPE SEALED LEAD-ACID BATTERY SIZE 12V/9AH HOT-SWAPPABLE YES BATTERY QUANTITY 6 USER REPLACEABLE YES TYPICAL RECHARGE TIME 5 HOURS BUILT-IN CHARGER YES EXPANSION READY (DAISY-CHAIN) YES PHYSICAL RACK SIZE 2U MOUNTING HARDWARE INCLUDED ENCLOSURE CONTRUCTION STEEL DIMENSIONS (WXHXD) (IN.) 17 X 3.5 X 16.9 DIMENSIONS (WXHXD) (MM.) 433 X 88 X 430 WEIGHT (LBS.) 50.6 WEIGHT (KG.) 22.9 SHIPPING DIMENSIONS (WXHXD) (IN.) 21.65 X 9.45 X 23.23 SHIPPING DIMENSIONS (WXHXD) (MM.) 550 X 240 X 590 SHIPPING WEIGHT (LBS.) 65.34 SHIPPING WEIGHT (KG.) 29.6 ENVIRONMENTAL OPERATING TEMPERATURE 32 °F TO 104 °F / 0 °C TO 40 °C OPERATING HUMIDITY 0% - 90% NON-CONDENSING OPERATING ELEVATION 0-10000 FEET (0-3000 METERS) STORAGE TEMPERATURE 5°F TO 113°F / -15°C TO 45 °C STORAGE RELATIVE HUMIDITY 0% - 95% NON-CONDENSING STORAGE ELEVATION 0-50000 FEET (0-15000 METERS) CERTIFICATIONS SAFETY UL1778, CSA C22.2 NO.107.3-05, FCC DOC CLASS A ENVIRONMENTAL ROHS COMPLIANT WARRANTY PRODUCT WARRANTY 3 YEARS LIMITED