Dell Inspiron 1521 (Mid 2007) - Manual (Page 187)

Specifications
187
AC Adapter
Input voltage 90–264 VAC
Input current (maximum) 1.5 A
Input frequency 47–63 Hz
Output current (65 W) 4.34 A (maximum at 4-second pulse)
3.34 A (65 W) (continuous)
Output current (90 W) 5.62 A (maximum at 4-second pulse)
4.62 A (90 W) (continuous)
Output power 65 W, 90 W
Rated output voltage 19.5 +/– 1.0 VDC
Dimensions (65 W):
Height 28.2 mm (1.11 in)
Width 57.9 mm (2.28 in)
Depth 137.2 mm (5.4 in)
Weight (with cables) 0.4 kg (0.9 lb)
Dimensions (90 W):
Height 34.2 mm (1.34 in)
Width 60.8 mm (2.39 in)
Depth 153.4 mm (6.0 in)
Weight (with cables) 0.46 kg (1.01 lb)
Temperature range:
Operating 0° to 35°C (32° to 95°F)
Storage –40° to 65°C (–40° to 149°F)