Dell E7240 owner manual Discharge 0 C to 70 C 32 F to 122 F

Table 26. Touchpad

Feature	Specification
	Latitude 7240	Latitude 7440
Active Area:
X-axis	98.8 mm	100 mm
Y-axis	60.8 mm	47 mm
Table 27. Battery
Feature	Specification
Type	• 3-cell “smart” Lithium ion
	• 4cell “smart” Lithium ion
Dimensions:	Latitude 7240	Latitude 7440
3–cell/4–cell
Depth	80.75 mm (3.18 inches)	74.75 mm (2.94 inches)
Height	7.20 mm (0.28 inch)	8.00 mm (0.31 inch)
Width	282.00 mm (11.10 inches)	308.50 mm (12.15 inches)
Weight:
3-cell	250.00 g (0.55 lb)	247.00 g (0.54 lb)
4–cell	300.00 g (0.66 lb)	308.00 g (0.68 lb)
Voltage
3-cell	11.10 VDC
4–cell	7.40 VDC
Temperature range:
Operating	Charge: 0 °C to 50 °C (32 °F to 158 °F)
	Discharge: 0 °C to 70 °C ( 32 °F to 122 °F)
Non-Operating	–20 °C to 65 °C (4 °F to 149 °F)
Coin-cell battery	3 V CR2032 lithium coin cell
Table 28. AC Adapter
Feature	Specification
Type	65 W and 90 W
Input voltage	100 VAC to 240 VAC
Input current (maximum)	1.50 A
Input frequency	50 Hz to 60 Hz