Panasonic U500D Replacing the battery pack, Extending battery life, Removing the battery pack

Power and Power-Up Modes

Extending battery life

To maximize the life of your battery pack:

nAt 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.

nIf you have extra battery packs, rotate their use.

nIf you will not be using the system for an extended period, more than one month, remove the battery pack.

nStore 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.

Removing the battery pack

To replace a discharged battery, follow the steps below.

User’s Manual 6-9