Fujitsu P7230 P7230 User's Guide for Configurations: A0E, A0F, A0G, A0H, A0J - Page 45

User Installable Features Lithium ion Battery Your LifeBook notebook has a Lithium ion battery (and possibly an optional modular battery) that provides power for operating your notebook when no external power source is available. The battery is durable and long lasting, but should not be exposed to extreme temperatures, high voltages, chemicals, or other hazards. The Lithium ion battery operating time may become shorter if it is used under the following conditions: ■ When used at temperatures that exceed a low of 5°C (41°F) or a high of 35°C (95°F). Extreme temperatures not only reduce charging efficiency, but can also cause battery deterioration. The charging indicator on the Status Indicator panel will flash red for the affected battery (battery 1 or 2) when you try to charge a battery that is outside of operating temperature range. (See Battery Charging Indicators on page 12 for more information) ■ When using a high current device such as a modem, DVD/CD-RW drive, or the hard drive, using the AC adapter will conserve your battery life. Do not leave a faulty battery in your LifeBook notebook. It may damage your AC adapter, optional Auto/Airline adapter, another battery or your notebook itself. It may also prevent operation of your notebook by draining all available current into the bad battery. ■ Battery life will vary based on screen brightness, applications, features, power management settings, battery condition and other customer preferences. DVD, CD-RW, CD-ROM, or hard drive usage may also have a significant impact on battery life. The battery charging capacity is reduced as the battery ages. If your battery is running low quickly, you should replace it with a new one. ■ Under federal, state, or local law it may be illegal to dispose of batteries by putting them in the trash. Take care of our environment by disposing of batteries properly. Check with your local government authority for information on recycling or disposing of old batteries. If you cannot find this information elsewhere, contact your support representative at 1-800-8Fujitsu (1-800-838-5487) RECHARGING THE BATTERIES If you want to know the condition of the primary Lithium ion battery, check the Battery Level 1 indicator located on the Status Indicator panel. The indicator changes as the battery level changes. If you want to know the condition of the secondary modular Lithium ion battery, check the Battery Level 2 indicator located on the Status Indicator panel. The Lithium ion battery is recharged internally using the AC adapter or Auto/Airline adapter. To recharge the battery make sure the battery that needs to be charged is installed in your LifeBook notebook and connect the AC or Auto/Airline adapter. Make sure the Battery Charging indicator and the percentage charge is shown inside the Battery Level icon on the Status Indica- tor Panel. (See Battery Charging Indicators on page 12 for more information) There is no memory effect on the Lithium ion battery therefore you do not need to discharge the battery completely before recharging. The charge times will be significantly longer if your notebook is in use while the battery is charging. If you want to charge the battery more quickly, put your notebook into Standby mode, or turn it off while the adapter is charging the battery. (See Power Management on page 30 for more information) Using heavy current devices such as Modem or frequent DVD/CD-RW/CD-ROM accesses may prevent charging completely. Low Battery State When the battery is running low, a low battery notification message will appear. If you do not respond to the low battery message, the batteries will continue to discharge until they are too low to operate. When this happens, your notebook will go into Standby mode. There is no guarantee that your data will be saved once the notebook reaches this point. 35