Battery Type Maintenance-free sealed lead-acid battery with thickened electrolyte : leak protection Expected battery life (years) 3-5 years Number of battery packs on the chain 4 RBC quantity 1 Battery placement Internal battery Battery installation Closed battery cartridge Battery output voltage 48 Form factor Rack Rackmount (Installation in the cabinet) Maximum height 83 mm, 8.3 cm Maximum width 165 mm, 16.5 cm Maximum depth 419 mm, 41.9 cm Net weight, kg 10.82 Gross weight, kg 11.73 Height of the transport package 190 mm, 19.0 cm The depth of the transport package is 546 mm, 54.6 cm Width of the transport package 292 mm, 29.2 cm Colour Black Devices on a pallet 24 Operating temperature 0-40 °C Operating range of relative humidity 0–95 % Operating range of altitude above sea level 0-3000meters Storage temperature -15–45 °C Relative humidity of storage 0–95 % Altitude above sea level storage 0-15000meters