Dell PP29L owner manual 137, Reduced under certain power-intensive, Information on battery life

Battery

Type	6-cell "smart" lithium ion, 6-cell "smart"
	lithium polymer, or 4-cell "smart"
	lithium ion
Dimensions:
Depth	57.2 mm (2.25 in)(4/6 cell)
Height	20 mm (0.78 in)
Width	205.1 mm (8.07 in)(4/6 cell)
Voltage	11.1 VDC (6 cell)
	14.8 VDC (4 cell)
Charge time (approximate):
Computer off	4 hours
Operating time	Battery operating time varies depending on
	operating conditions and can be significantly
	reduced under certain power-intensive
	conditions (see "Power Problems" on page 93).
	See "Using a Battery" on page 47 for more
	information on battery life.
Life span (approximate)	300 discharge/charge cycles
Temperature range:
Operating	0° to 35°C (32° to 95°F)
Storage	–40° to 65°C (–40° to 149°F)
Coin-cell battery	CR-2032
AC Adapter
Input voltage	100–240 VAC
Input current (maximum)	1.5 A
Input frequency	50–60 Hz
Output current	3.34 A (continuous)
	4.34 A (peak for 4-second pulse)
Output power	65 W

Specifications

137