Toshiba Tecra 9100 User Guide - Page 115
Monitoring battery power, loses this data and the real time clock and calendar stop working.
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115 Mobile Computing Running the computer on battery power The battery may not start charging immediately under the following conditions: ❖ The battery is extremely hot or cold. To ensure that the battery charges to its full capacity, wait until it reaches room temperature. ❖ The battery is almost completely discharged. Leave the power connected and the battery should begin charging after a few minutes. The main battery charges the RTC battery. During normal use, the main battery keeps the RTC battery adequately charged. Occasionally, the RTC battery may lose its charge completely, especially if you have had the computer turned off for a long time. If the RTC battery becomes completely discharged, the system loses this data and the real time clock and calendar stop working. The following message appears when you turn on the power: *** Bad RTC battery *** Check system. Then press [F1] key. . . . CAUTION: The computer's RTC battery is a Lithium Ion (Li-Ion) 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 of. Dispose of the battery as required by local ordinances or regulations. To recharge the RTC battery, plug the computer in and turn it on for at least 24 hours. Monitoring battery power The computer's main battery light gives you an indication of the main battery's current charge: ❖ Green indicates the AC adapter has fully charged the battery.