Toshiba Satellite A660D Series User Manual page 184

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.
Battery type
Battery pack (4400mAh, 6 cell)
Battery pack (5600mAh, 6 cell)
Battery pack (9000mAh, 12 cell)
RTC battery
Extending battery life
To maximize the life of your battery packs:
■
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 as detailed below.
1. Turn off the computer's power.
2. Disconnect the AC adaptor and turn on the computer's power - if it
3. Operate the computer on battery power for five minutes. If you find
4. Connect the AC adaptor to the DC IN 19V jack of the computer, and
5. Charge the battery pack until the Battery indicator glows white.
■
If you have extra battery packs, rotate their use.
■
If you will not be using the system for an extended period, for example
for more than one month, remove the battery pack from the computer.
■
Store spare battery packs in a cool dry place out of direct sunlight.
User's Manual
does not turn on then go to Step 4.
that the battery pack has at least five minutes of operating time,
continue operating until the battery pack is fully discharged,
however, if the Battery indicator flashes or there is some other
warning to indicate a low battery condition, go to Step 4.
to a wall outlet that is supplying power. The DC IN indicator should
glow white, and the Battery indicator should glow amber to indicate
that the battery pack is being charged, however, in the event that
DC IN indicator does not glow this indicates that power is not being
supplied - check the connections for the AC adaptor and the power
cord.
Retention Time
Sleep Mode
1 day
1.25 days
2 days
30 days
Power and Power-Up Modes
Shut Down Mode
16 days
20 days
30 days
30 days
6-8