Care and use of the battery pack, Charging the batteries – Toshiba Satellite U920T User Manual
Page 65
You can change the Real Time Clock settings in the BIOS setup utility.
Please refer to
The RTC battery does not charge while the computer is turned off even if
the AC adaptor is attached.
Care and use of the battery pack
This section provides the important safety precautions in order to handle
your battery pack properly.
Refer to the enclosed Instruction Manual for Safety and Comfort for
detailed precautions and handling instructions.
The computer's RTC battery is a Ni-MH battery and should be
replaced only by your dealer or by a TOSHIBA service representative.
The battery can explode if not properly replaced, used, handled or
disposed. Dispose of the battery as required by local ordinances or
regulations.
Charge the battery pack only in an ambient temperature between 5
and 35 degrees Celsius. Otherwise, the electrolyte solution might leak,
battery pack performance might deteriorate and the battery life might
be shortened.
Charging the batteries
When the power in the battery pack becomes low, the DC IN/Battery
indicator will flash amber to indicate that only a few minutes of battery
power remain. If you continue to use the computer while the DC IN/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, connect the AC adaptor to the DC IN 19V jack
and plug the other end into a working outlet - the DC IN/Battery indicator
will glow amber while the battery is being charged.
Charging Time
The following table shows the approximate time required to fully charge a
discharged battery.
Battery type
Power off
Power on
Battery pack
(37.7Wh, 3 cell)
about 3.5 hours
about 3.5 ~ 8.5 hours
User's Manual
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