Acer Aspire 5540 User Manual page 29

Power
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subsystem
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Input devices
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Audio
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ACPI 2.0 CPU power management standard: supports
Standby and Hibernation power-saving modes
42 W 3800 mAh Li-ion battery pack (6 cell) (for
selected models) and 54 W 4800 mAh Li-ion battery
pack (6 cell)
™
Acer QuicCharge technology:
• 80% charge in 1 hour
• 2-hour rapid charge system-off
• 2.5-hour charge-in-use
3-pin 90 W AC adapter
88-/89-key keyboard
Touchpad with 4-way scroll button
Four easy-launch buttons
Two front-access switches: WLAN LED and
®
Bluetooth LED-switches (for selected models)
®
Intel High-Definition audio support
S/PDIF (Sony/Philips Digital Interface) support for
digital sound systems
Audio system with two built-in speakers
™
Sound Blaster Pro and MS-Sound compatible
Built-in microphone
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