HP Pavilion ze4900 Reference Guide - Page 40
High temperatures accelerate the self-discharge rate of a, weeks, remove and store the battery pack. - wireless card
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Battery Packs and Power Management ■ If your notebook has a wireless on-off button, turn off the wireless function when you are not using it. Press the wireless on-off button to turn off the light. ■ If you have a PC Card, such as a network card, remove it when you are not using it. Some PC Cards use significant power even while they are inactive. ■ If you work with an application that uses the serial port or a PC Card, exit the application when you finish using it. In addition, follow these suggestions to extend the life of your battery packs: ■ Do not leave battery packs unused for long periods. If you have more than one, rotate them. ■ Unplug the AC adapter when the notebook is not in use. ■ If the notebook will be unused and unplugged for more than 2 weeks, remove and store the battery pack. Ä CAUTION: To prevent damage to the battery pack, do not expose it to high temperatures for extended periods of time. ■ High temperatures accelerate the self-discharge rate of a stored battery pack. To prolong the charge of a stored battery pack, place it in a cool, dry location. ■ To maintain the accuracy of battery charge displays, calibrate a battery pack that has been stored for one month or more before using it. ■ Avoid using or charging battery packs at high temperatures. 3-6 Reference Guide