Dell Latitude E6520 (Early 2011) - Manual (Page 98)

Physical
Height 28.30 mm to 34.20 mm (1.11 inches to 1.35
inches)
Width 384.00 mm (15.11 inches)
Depth 258.00 mm (10.16 inches)
Weight (with 4-cell battery) 2.50 kg (5.51 lb)
Environmental
Temperature:
Operating 0 °C to 35 °C (32 °F to 95 °F)
Storage –40 °C to 65 °C (–40 °F to 149 °F)
Relative humidity (maximum):
Operating 10 % to 90 % (noncondensing)
Storage 5 % to 95 % (noncondensing)
Altitude (maximum):
Operating –15.2 m to 3048 m (–50 ft to 10,000 ft)
Non-Operating –15.2 m to 10,668 m (–50 ft to 35,000 ft)
Airborne contaminant level G1 as defined by ISA-71.04–1985
98