116 Mobile Computing
Running the computer on battery power
5.375 x 8.375 ver 2.4.0
❖Do not incinerate a spent battery, as this could cause it to
explode and release toxic materials.
❖If a battery is leaking or damaged, replace it immediately.
Use protective gloves when handling a damaged battery.
❖To replace the main battery, use an identical battery that
you can purchase through toshiba.com.
❖A reverse polarity condition should be avoided with all
batteries. The main battery is designed so that it cannot
be installed to cause reverse polarity.
❖Charge the battery only in the computer or in a battery
charger designated as an approved option.
❖When you install the battery, you should hear a click
when it is seated properly.
❖Do not expose the battery to fire. The battery could
explode.
Maximizing battery life
To maximize the life of your battery:
❖At least once a month, disconnect the computer from a
power source and operate it on battery power until the
battery fully discharges. Before doing so, follow the steps
below:
1Turn off the computer’s power.
2Disconnect the AC adapter and turn on the computer’s
power. If it does not turn on, go to step 4.
3Operate the computer on battery power for five minutes.
If the battery has at least five minutes of operating time,
continue operating until the battery is fully discharged. If
the battery light flashes or there is some other warning to
indicate a low battery, go to step 4.
4Connect the AC adapter to the computer and the power
cable to a power outlet. The DC-IN (if applicable to your
system) or AC power light should glow green, and the