Toshiba PPM78U05L01E User Manual

6-4

User’s Manual

PORTÉGÉ M780

As shown in the below table, the Battery, 2nd battery, DC IN and Power 
indicators on the system indicator alert you to the computer’s operating 
capability and battery charge status.

Check the Battery indicator to determine the status of the main battery and 
the 2nd battery indicator to determine the status of the Slice Expansion 
Battery. The following indicator lights indicate the battery status:

Check the DC IN indicator to determine the power status with the AC 
adaptor connected - the following indicator conditions should be noted:

The battery charge is low, the AC adaptor must be 
connected in order to recharge the battery.

Indicates the AC adaptor is connected and the 
battery is charging.

Indicates the AC adaptor is connected and the 
battery is fully charged.

Under any other conditions, the indicator does not 
light.

If the battery pack becomes too hot while it is being charged, the charge 
will stop and the Battery indicator will go out. When the battery pack’s 
temperature falls to a normal range, charging will resume - this process will 
occur regardless of whether the computer’s power is on or off.

Indicates the AC adaptor is connected and is 
correctly supplying power to the computer.

Indicates a problem with the power supply. You 
should initially try plugging the AC adaptor into 
another power outlet - if it still does not operate 
properly, you should contact your reseller or dealer.

Under any other conditions, the indicator does not 
light.