Toshiba Satellite Pro A210 User Manual

User’s Manual                                                                                        6-13

Power and Power-Up Modes

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

Battery pack (3 cell)

about 1.8

days (Sleep mode)

about 15

days (Shutdown mode)

Battery pack (6 cell)

about 3.5

days (Sleep mode)

about 30

days (Shutdown mode)

Battery pack (9 cell)

about 5.5

days (Sleep mode)

about 50

days (Shutdown mode)

RTC battery

about 3

      months

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 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 LED flashes or 
there is some other warning to indicate a low battery, go to step 4.

4. Connect the AC adaptor to the computer and the power cord to a power 

outlet. The DC IN LED should glow blue, and the Battery LED should 
glow amber to indicate that the battery pack is being charged. If the DC 
IN indicator does not glow, power is not being supplied. Check the con-
nections for the AC adaptor and power cord.

5. Charge the battery pack until the Battery LED glows blue.

❑ 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 AC adaptor when the battery is fully charged. Overcharging 

makes the battery hot and shortens life.