Toshiba SATELLITE U500 - Manual (Page 133)

User’s Manual 6-9
Satellite U500/U500D, Satellite Pro U500/U500D
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 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 AC adaptor to the computer and the power cord to a
power outlet. The Battery indicator should glow orange 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 white.
■ 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.
■ Store spare battery packs in a cool dry place out of direct sunlight.
Replacing the battery pack
When the battery pack reaches the end of its operating life you will need to
install a new one. The life of the battery pack is generally about
500 recharges. If the Battery indicator flashes orange 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 the battery pack.