Toshiba Tecra A4 (PTA42) User Manual
Page 95
User’s Manual
6-7
Power and Power-Up Modes
2. To ensure the battery pack maintains maximum capacity, operate the
computer on battery power once a week until the battery pack is fully
discharged. Refer to the section
in this chapter for
procedures. If the computer is continuously operated on AC power for
an extended period, more than a week, the battery might fail to retain a
charge. It might not function efficiently over the expected life of the bat-
tery pack and Battery indicator might not indicate a low-battery condi-
tion.
3. After the battery pack is charged, avoid leaving the AC adaptor con-
nected and the computer turned off for more than a few hours at a time.
Continuing to charge a fully-charged battery pack can damage the bat-
tery.
Charging the batteries
When the power in the battery pack becomes low, the Battery indicator
flashes amber indicating that only a few minutes of battery power remain. If
you continue to use the computer while the Battery indicator flashes, the
computer enables Hibernation mode (so you don’t lose data) and
automatically turns 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 socket and plug the other end into a working
outlet.
The Battery indicator glows amber when the battery is being charged.
Time
The following table shows the approximate time required to fully charge a
discharged battery.
The computer enters Hibernate mode only if Hibernation is enabled in two
places: the Hibernate tab in Power Options and Setup Action tab in
TOSHIBA Power Saver.
Use only the computer connected to an AC power source or charge the
battery pack. Do not attempt to charge the battery pack with any other
charger.
Charging time (hours)
Battery type
Power on
Power off
Battery pack (6 cell)
8 hours or later
4 hours
Battery pack (12 cell)
8 hours or later
4 hours
RTC battery
24 hours
Don’t charge