Dell Precision 3551 Setup and specifications guide

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Battery

Table 1. Battery specifications
The following table provides the detailed battery specifications of Precision 3551.
Description		Values
Type		3 Cell 51 Whr ExpressCharge capable		4 Cell 68 Whr ExpressCharge capable	4 Cell 68 Whr Long Cycle Life	6 Cell 97 WHr ExpressCharge capable
Voltage		11.40 VDC		15.20 VDC	15.20 VDC	11.40 VDC
Weight (maximum)		0.25 kg (0.55 lb)		0.34 kg (0.75 lb)	0.34 kg (0.75 lb)	0.47 kg (1.04 lb)
Dimensions:
	Height	95.90 mm (3.78 in.)		95.90 mm (3.78 in.)	95.90 mm (3.78 in.)	82.00 mm (3.22 in.)
	Width	181 mm (7.13 in.)		233 mm (9.17 in.)	233 mm (9.17 in.)	332 mm (13.1 in.)
	Depth	7.05 mm (0.28 in.)		7.05 mm (0.28 in.)	7.05 mm (0.28 in.)	7.70 mm (0.30 in.)
Temperature range:
	Operating	0°C to 50°C (32°F to 122°F)		0°C to 50°C (32°F to 122°F)	0°C to 50°C (32°F to 122°F)	0°C to 50°C (32°F to 122°F)
	Storage	-20°C to 60°C (-4°F to 140°F)		-20°C to 60°C (-4°F to 140°F)	-20°C to 60°C (-4°F to 140°F)	-20°C to 60°C (-4°F to 140°F)
Operating time		Varies depending on operating conditions and can significantly reduce under certain power-intensive conditions.		Varies depending on operating conditions and can significantly reduce under certain power-intensive conditions.	Varies depending on operating conditions and can significantly reduce under certain power-intensive conditions.	Varies depending on operating conditions and can significantly reduce under certain power-intensive conditions.
Charging time (approximate)		4Hrs hours (when the computer is off) NOTE:Control the charging time, duration, start and end time, and so on using the Dell Power Manager application. For more information on the Dell Power Manager see, Me and My Dell on Dell Support Site		4Hrs hours (when the computer is off) NOTE:Control the charging time, duration, start and end time, and so on using the Dell Power Manager application. For more information on the Dell Power Manager see, Me and My Dell on Dell Support Site	4 Hrs hours (when the computer is off) NOTE:Control the charging time, duration, start and end time, and so on using the Dell Power Manager application. For more information on the Dell Power Manager see, Me and My Dell on Dell Support Site	4 Hrs hours (when the computer is off) NOTE:Control the charging time, duration, start and end time, and so on using the Dell Power Manager application. For more information on the Dell Power Manager see, Me and My Dell on Dell Support Site
Life span (approximate)		300 discharge/charge cycles		300 discharge/charge cycles	1000 discharge/charge cycles	300 discharge/charge cycles
Coin-cell battery		CR2032		CR2032	CR2032	CR2032