Real Time Clock Battery - Toshiba PSU9CU-00F00C User Manual

Satellite U500/U500D, Satellite Pro U500/U500D
To ensure that the battery pack maintains its maximum capacity, operate
the computer on battery power at least once a month until the battery pack
is fully discharged. Refer to
procedures. If the computer is continuously operated on AC power through
an AC adaptor for an extended period, more than a month, the battery may
fail to retain a charge. It may not function efficiently over the expected life of
the battery and the Battery indicator may not indicate a low-battery
condition.

Real Time Clock battery

The Real Time Clock (RTC) battery provides power for the internal real
time clock and calendar. It also maintains the system configuration.
If the RTC battery becomes completely discharged, the system loses this
data and the real time clock and calendar stop working.
The computer's RTC battery is a lithium 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
You can change the settings of the Real Time Clock by pressing F2 in
POST.
After configuring the time and date for the Real Time Clock battery, we
recommend that you turn the power status of your computer to "ON" so
that the Real Time Clock battery is charged. Refer to Chapter 9
Troubleshooting, for details.
6-4
Figure 6-1 Battery pack
Extending battery life in this chapter for
User's Manual