6-Cell (55 WHr) Lithium-
on 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
6-cell Lithium-Ion
Energy
Watt-hour Capacity
55 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
6-Cell (47 WHr) Lithium-
Ion battery
Dimensions
(H x W x L)
0.8 x 2.1 x 8.0 in (2.0 x 5.3 x 20.3 cm)
Weight
0.659 lb (0.299 kg)
Cells/Type
6-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
Displays
QuickSpecs
HP ProBook 6440b Notebook PC
Technical Specifications
DA - 13462 Worldwide — Version 10 — September 14, 2010
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