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User’s Manual 6-1
PORTÉGÉ M400
Chapter 6
Power and Power-Up Modes
The computer’s power resources include the AC adaptor, battery pack and
internal batteries. This chapter gives details on making the most effective
use of these resources including charging and changing batteries, tips for
saving battery power, and power up modes.
Power conditions
The computer’s operating capability and battery charge status are affected
by the power conditions: whether an AC adaptor is connected, whether a
battery pack is installed and what the charge level is for the battery.
Table 6-1 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