Toshiba NB 100 User Manual

6-8

User’s Manual

NB 100 Series

Retention Time

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 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 then 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 Battery LED should glow blinking green slow to indicate that 

the battery pack is being charged. If the battery indicator does not glow, 

power is not being supplied. Check the connections for the 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 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 AC adaptor.

■

Store spare battery packs in a cool dry place out of direct sunlight.

When the battery pack reaches the end of its operating life you will need to 

install a new one. If the Battery indicator flashes green shortly after fully 

recharging the battery, the battery pack needs to be replaced.
You might also replace a discharged battery pack with a charged spare 

when you are operating your computer away from an AC power source. 

This section explains how to remove and install battery packs.

Battery pack (4 cell)

about 3 hours (standby mode)

about 14 days (shutdown mode)

RTC battery

about 3 months