Dell Vostro 2420 (Mid 2012) - Manual (Page 50)

Table 13. Battery
Feature Specification
Type 6-cell lithium ion (2.20 Whr)
Dimensions:
Height 20.20 mm (0.80 inch)
Width 208.36 mm (8.20 inches)
Depth 56.52 mm (2.22 inches)
Weight 0.33 kg (0.73 lb)
Charge time approximately 4 hours (when the computer is turned off)
Voltage 11.1 VDC
Temperature range:
Operating 0 °C to 35 °C (32 °F to 95 °F)
Non-operating –40 °C to 65 °C (–40 °F to 149 °F)
Coin-cell battery 3 V CR2032 lithium coin cell
Table 14. AC Adapter
Feature Specification
Type:
Vostro 2420 / Vostro 2520 with integrated video
card 65 W
Vostro 2420 with discrete video card 90 W
Input voltage 100 VAC to 240 VAC
Input current (maximum) 1.50 A/1.60 A/1.70 A/2.50 A
Input frequency 50 Hz to 60 Hz
Output power 65 W and 90 W
Output current:
65 W 3.34 A (continuous)
90 W 4.62 A
Rated output voltage 19.50 VDC (+/– 1.0 VDC)
Dimensions:
Height 28.20 mm (1.11 inches)
Width 57.90 mm (2.28 inches)
Depth 137.16 mm (5.40 inches)
Temperature range:
50