Retaining Data With Power Off; Extending Battery Life - Toshiba PSA20 User Manual

Retaining data with power off

When you turn off your computer with fully charged batteries, the batteries retain
data for the following approximate time periods:

Extending battery life

To maximize the life of your battery pack:
At least once a month, disconnect the computer from a power source and
operate it on battery power until the battery pack fully discharges. Before doing
so, follow the steps below.
1. Turn off the computer's power.
2. Disconnect the universal AC adaptor and turn on the computer's power. If it
does not turn on go to step 4.
3. Operate the computer on battery power for five minutes. If the battery pack
has at least five minutes of operating time, continue operating until the
battery pack is fully discharged. If the Battery indicator flashes or there is
some other warning to indicate a low battery, go to step 4.
4. Connect the universal AC adaptor to the computer and the power cord to a
power outlet. The DC IN indicator should glow green, and the Battery
indicator should glow orange to indicate that the battery pack is being
charged. If the DC IN indicator does not glow, power is not being supplied.
Check the connections for the universal AC adaptor and power cord.
5. Charge the battery pack until the Battery indicator glows green.
If you have extra battery packs, rotate their use.
If you will not be using the system for an extended period, more than one
month, remove the battery pack.
Disconnect the universal AC adaptor when the battery is fully charged.
Overcharging makes the battery hot and shortens life.
If you are not going to use the computer for more than eight hours, disconnect
the universal AC adaptor.
Store spare battery packs in a cool dry place out of direct sunlight.
Care and use of the battery pack
Battery pack about 6 days (Standby mode)
about 27 days (Boot mode)
RTC battery 1 month
6-11