Dell Latitude 7290 7390 7490 Technical Guidebook

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Battery specifications

This topic lists out the detailed battery specifications. Battery is a FRU and is beneath the back cover.

Table 1. Battery specifications The following table lists the battery specifications:
Description	42 WHr ExpressCharge Capable (3-cell) (prismatic)	60 WHr ExpressCharge Capable (4-cell) (polymer)	60 WHr Long Life Cycle battery (4-cell) (polymer)
Battery Type	Li-ion	Li-ion	Li-ion
System Compatibility	12/14 U UMA	12/14 U UMA	12/14 U UMA
Dimension:
Length	200.50 mm (7.89 inch)	238 mm (9.37 inch)	238 mm (9.37 inch)
Width	95.90 mm ( 3.78 inch)	95.90 mm ( 3.78 inch)	95.90 mm ( 3.78 inch)
Height	5.70 mm ( 0.22 inch)	5.70 mm ( 0.22 inch)	5.70 mm ( 0.22 inch)
Weight	185.00 g (0.41 lb)	270.00 g (0.60 lb)	270.00 g (0.60 lb)
Voltage	11.4 VDC	7.6 VDC	7.6 VDC
Typical Amp-hour capacity	3.68 Ahr	7.89 Ahr	7.89 Ahr
Typical Watt-hour capacity	42 Whr	60 Whr	60 Whr
Operating time	NOTE Battery operating time varies depending on operating conditions and can be significantly reduced under certain power-intensive conditions.
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
Temperature range: Non-Operating	-20°C to 65°C (4°F to 149°F)
Charging time ( ExpressCharge)	0°C~15°C: 4 hour 16°C~60°C: 3 hours
ExpressCharge Capable	Yes	Yes	No
BATTMAN Capable	Yes	Yes	No
Life span (approximate)	Standard pack : 1 year warranty for 300 cycles	Standard pack : 1 year warranty for 300 cycles	LCL pack : 3 year warranty for 1000 cycles

Express Charge benefits

For a battery advertised as having the ExpressCharge feature, the battery typically will have greater than 80% charge after about an hour of charging with the system off, and fully charged in about 2 hours with the system off.
Enabling Expresscharge requires that both the Latitude notebook and the battery that is used on the system be ExpressCharge capable. If any of the above requirements is missing, ExpressCharge will not be enabled.