Optional HP Extended Life
Battery
Dimensions
(H x W x L)
1.0 x 3.9 x 8.7 in (2.5 x 10.0 x 22.0 cm)
Weight
1.00 lb (0.455 kg)
Cells/Type
8-cell Lithium-Ion
Energy
Watt-hour Capacity
52 WHr
Temperature
Operating (Charging)
32° to 113° F (0° to 45° C)
Operating (Discharging)
14° to 140° F (–10° to 60° C)
Non-operating
–4° to 140° F (–20° to 60° C)
Battery Re-Charge Time
System in OFF mode or
Standby
3 hours
System ON
3 to 5 hours (depending on system power
consumption)
HP Fast Charge Technology Charges the battery up to 90% within 90 minutes
when system is OFF
Fuel Gauge
When pressed, LEDs light indicating level of charge remaining on battery
Optional HP Long Life
Battery
Dimensions
(H x W x L)
0.8 x 2.1 x 8.0 in (2.0 x 5.3 x 20.4 cm)
Weight
0.71 lb (0.32 kg)
Cells/Type
3-cell Lithium-Ion
Energy
Watt-hour Capacity
47 WHr
Temperature
Operating (Charging)
32° to 113° F (0° to 45° C)
Operating (Discharging)
14° to 140° F (–10° to 60° C)
Non-operating
–4° to 140° F (–20° to 60° C)
Battery Re-Charge Time
System in OFF mode or
Standby
2.5 hours
System ON
3 to 5 hours (depending on system power
consumption)
HP Fast Charge Technology Charges the battery up to 90% within 90 minutes
when system is OFF
9-Cell (93 WHr) Lithium-
Ion battery
Dimensions
(H x W x L)
0.8 x 2.9 x 8.3 in (2.0 x 7.3 x 21.0 cm)
Weight
1.07 lb (0.488 kg)
Cells/Type
9-cell Lithium-Ion
Energy
Watt-hour Capacity
93 WHr
Temperature
Operating (Charging)
32° to 113° F (0° to 45° C)
Operating (Discharging)
14° to 140° F (–10° to 60° C)
Non-operating
–4° to 140° F (–20° to 60° C)
Battery Re-Charge Time
System in OFF mode or
Standby
3 to 4 hours
System ON
4 to 6 hours (depending on system power
consumption)
QuickSpecs
HP ProBook 6540b Notebook PC
Technical Specifications
DA - 13465 North America — Version 13 — September 27, 2010
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