Toshiba U600D User Manual

User ’s Manual

6-9

Power and Power-Up Modes

To maximize the life of your battery pack:

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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.

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If you have extra battery packs, rotate their use.

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  If you will not be using the system for an extended period, more than one 

month, remove the battery pack.

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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. 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.

To replace a discharged battery, follow the steps below.