Non-operating (storage)
temperature
-4° to 149° F (-20° to 65° C)
Altitude
0 to 10,000 ft (0 to 3,048 m)
Humidity
20% to 80%
Storage Humidity
10% to 90%
EMI and Safety
Certifications
CE Mark - full compliance with LVD and EMC directives; Worldwide safety
standards - IEC60950, EN60950, UL60950, Class1, SELV; Agency approvals -
C-UL-US, NORDICS, DENAN, EN55022 Class B, FCC Class B, CISPR22 Class B,
CCC, NOM-1 NYCE; MTBF- over 200,000 hours at 25°C ambient condition.
NOTE:
Unless otherwise noted, temperature limits listed in the following component specifications relate to the internal temperatures
of these components and not to the environment in which the PC is operating.
Optional HP Ultra-
Capacity Battery
Dimensions
(H x W x L)
1.3 x 6.0 x 10.6 in (3.33 x 15.25 x 26.88 cm)
Weight
1.77 lb (0.803 kg)
Cells/Type
12-cell Lithium-Ion
Energy
Watt-hour Capacity
95 Wh
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
Smart Adapter
3 to 4 hours
System ON
4 to 5 hours (depending on system power
consumption)
Fuel Gauge
When pressed, LEDs light indicating level of charge remaining on battery
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 Wh
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
QuickSpecs
HP EliteBook 8540w Mobile Workstation
Technical Specifications
DA - 13529 Canada — Version 25 — September 29, 2011
Page 23
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