Toshiba Satellite U840 PSU4WC Users Manual Canada; English - Page 82

Battery, Battery types, Care and use of the battery pack

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Satellite U840/U800 Series Battery This section explains battery types, use, recharging methods and handling. Battery types The computer has different types of batteries. Battery pack When the AC adaptor is not connected, the computer's main power source is this lithium ion battery pack, also referred to in this manual as the main battery. Real Time Clock (RTC) battery The Real Time Clock (RTC) battery provides power for the internal real time clock and calendar function and also maintains the system configuration while the computer is turned off. If the RTC battery becomes completely discharged, the system will lose this information and the real time clock and calendar will stop working. You can change the Real Time Clock settings in the BIOS setup utility. To access it, press and hold the F2 key, and then turn on the computer - the BIOS setup utility will load. Please refer to Chapter 6 Troubleshooting for further information. 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 lithium 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. User's Manual 5-3

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Battery
This section explains battery types, use, recharging methods and handling.
Battery types
The computer has different types of batteries.
Battery pack
When the AC adaptor is not connected, the computer's main power source
is this lithium ion battery pack, also referred to in this manual as the main
battery.
Real Time Clock (RTC) battery
The Real Time Clock (RTC) battery provides power for the internal real
time clock and calendar function and also maintains the system
configuration while the computer is turned off. If the RTC battery becomes
completely discharged, the system will lose this information and the real
time clock and calendar will stop working.
You can change the Real Time Clock settings in the BIOS setup utility. To
access it, press and hold the
F2
key, and then turn on the computer - the
BIOS setup utility will load. Please refer to Chapter 6
Troubleshooting
for
further information.
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 lithium 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.
Satellite U840/U800 Series
User's Manual
5-3