Toshiba PPM78U05L01E User Manual

Page of 258
User’s Manual
6-7
PORTÉGÉ M780
Charging the batteries
When the power in the battery pack becomes low, the Battery indicator will 
flash orange to indicate that only a few minutes of battery power remain. If 
you continue to use the computer while the Battery indicator flashes, the 
computer will enable Hibernation Mode so that you do not lose any data, 
and automatically turn itself off.
You must recharge a battery pack when it becomes discharged.
Procedures
To recharge a battery pack while it is installed in the computer, connect the 
AC adaptor to the DC IN 15V jack and plug the other end into a working 
outlet - the Battery indicator will glow orange while the battery is being 
charged.
Time
The following table shows the approximate time required to fully charge a 
discharged battery.
Charging time (hours)
Never remove the battery pack while the Wake-up on LAN function is 
enabled. Data will be lost. Before you remove a battery pack, disable 
the Wake-up on LAN function.
Use only the computer connected to an AC power source or optional 
TOSHIBA Battery charger to charge the battery pack. Never attempt to 
charge the battery pack with any other charger.
Battery type
Power on
Power off
Battery pack 
(51Wh, 6 Cell)
about 3.0 to 12.0
About 3.0
Slice Expansion Battery 
(44Wh, 6 Cell)
about 3.0 to 9.5
About 2.5
RTC battery
8.0
Doesn’t charge
Please be aware that the charging time when the computer is on is 
affected by ambient temperature, the temperature of the computer and 
how you are using the computer - if you make heavy use of external 
devices for example, the battery might scarcely charge at all during 
operation. Please refer to the section 
for further information.