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User’s Manual 6-1
PORTÉGÉ M780
Chapter 6
Power and Power-Up Modes
The computer’s power resources include the AC adaptor, battery pack and
any internal batteries. This chapter provides details on making the most
effective use of these resources, and includes information on charging and
changing batteries, tips for saving battery power, and information on the
different power-up modes.
Power conditions
The computer’s operating capability and battery charge status are affected
by different power conditions, including whether an AC adaptor is
connected, whether a battery pack is installed and what the charge level is
for that battery.
Power conditions
Power on
Power off (no operation)
AC adaptor
connected
Main Battery fully
charged
• Operates
• No charge
• LED: Battery green
DC IN green
• No charge
• LED: Battery green
DC IN green
Main Battery
partially charged
or no charge
• Operates
• Charge
*
1
• LED: Battery orange
DC IN green
• Quick charge
*
1
• LED: Battery orange
DC IN green
No Main battery
installed
• Operates
• No charge
• LED: Battery off
DC IN green
• No charge
• LED: Battery off
DC IN green