Toshiba Tecra M9 PTM90C-TG009C Users Manual Canada; English - Page 136

Power and Power-Up Modes Extended Capacity Battery Pack (Included with some models, or option) The Extended Capacity Battery Pack is included with some models, or can be purchased separately as an optional accessory. High Capacity Battery Pack (Included with some models, or option) The High Capacity Battery Pack is included with some models, or can be purchased separately as an optional accessory. 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 - in this instance the following message will be displayed when you turn on the power: S **** RTC battery is low or CMOS checksum is inconsistent **** Press [F1] key to set Date/Time. You can change the Real Time Clock settings by turning the computer on while pressing the ESC key and then the F1 key when prompted. Please refer to Chapter 8 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. ■ Make sure the battery is securely installed in the computer before attempting to charge the battery pack. Improper installation could generate smoke or fire, or cause the battery pack to rupture. ■ Keep the battery pack out of reach of infants and children. It can cause injury. User's Manual 6-4