Dell Precision 5550 Setup and Specifications

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Battery

Table 1. Battery specifications
The following table provides the detailed battery specifications of Precision 5550.
Description		Values
Type		3-cell lithium-ion 56 WHr		6-cell lithium-ion 86 WHr
Voltage		11.4 VDC		11.4 VDC
Weight (maximum)		0.255 kg		0.340 kg
Dimensions:
	Height	7.56 mm		7.56 mm
	Width	77.7 mm		77.7 mm
	Depth	295.2 mm		295.2 mm
Temperature range:
	Operating	Charge: 0 °C to 45 °C (32 °F to 113 °F) Discharge:0 °C to 60 °C (32 °F to 149 °F)		Charge: 0 °C to 45 °C (32 °F to 113 °F) Discharge:0 °C to 60 °C (32 °F to 149 °F)
	Storage	–20 °C to 60 °C (4 °F to 149 °F)		–20 °C to 60 °C (4 °F to 149 °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.
Charging time (approximate)		2 hr ( Express charge ), 3 hr ( Standard charge) (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 www.dell.com/		2 hr ( Express charge ), 3 hr ( Standard charge) (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 www.dell.com/
Coin-cell battery		Not supported		Not supported
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.