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56 Software.............................................................................. 57 Appendix AidComponentsHandling Safety Power Supply Power Supply On/Off Button Power on or off your notebook by pressing the on/off button (3) briefly. The operational indicator will inform you about the operational status of the notebook. The notebook will always be switched off, if the main switch is pressed for more than 4 seconds. Warning! Do not switch off your notebook while the hard disk or the optical drive is running. Otherwise data may be lost. To protect the hard disk you should always wait for 20 seconds after powering down the notebook before powering it up again. Appendix AidComponentsHandling Safety Power Supply 27 Power Adapter Your notebook is supplied with a universal AC power adapter, which automatically adjusts to the available power source. The following levels are supported: AC 100-240V~/ 50-60 Hz. Please follow the power supply safety instructions found on page 5. The power adapter is connected via a power cord to an AC outlet. The DC power lead from the power adapter is connected to the rear side of the notebook (21). The adapter has an on and off switch. No electricity will be used and the notebook will not be supplied with electricity if the on/off switch is set to OFF (0) The adapter provides the notebook with power in the ON setting (1) and also charges the battery. The power supply indicators of the notebook provide details on the state of the battery. The battery is also being charged when you are working on your notebook with the power adapter connected. The power adapter is still receiving power even when your notebook is not connected to it. You should therefore unplug the power adapter from the outlet if it is not connected to the notebook or set the adapter to OFF (0). Warning! Use only the power adapter and power cord supplied with your notebook. Battery Operation Note Please charge and discharge the new battery completely two to three times in succession, so that it will achieve its full performance! Batteries store electrical energy in their cells and then deliver it when needed. The useful life and performance of your battery depend on careful handling. The battery should be completely discharged before a charging process and completely charged again, in order to optimize its useful life and its performance. You must also pay attention to the Safety Notes from page 8. Power Supply Inserting the Battery Insert the battery before bringing the notebook into operation by sliding the battery pack into the compartment. The battery should remain locked in order to avoid it falling out. Removing the Battery 1. Please ensure that the notebook is switched off and that it is not connected to a power outlet. 2. Turn the notebook upside down. 3. Unlock the battery by pushing the lock outwards into the Unlock position. 4. Hold the lock in the open position and remove the battery. Warning! Do not remove the battery while the notebook is running on battery power, this will very likely cause data loss. Warning! Keep the contacts on the battery and notebook clean when storing them. Dirty contacts might lead to malfunctions. Appendix AidComponentsHandling Safety Power Supply 29 Charging the Battery The battery is charged via the power adapter. If the power adapter is connected, it charges the battery automatically, whether the notebook is turned on or not. When the notebook is switched off, full charging takes a few hours. If the notebook is switched on, the charging process takes a significantly longer time. Note The charging process will be interrupted if the temperature or the voltage of the battery is too high. Discharging the battery Operate the notebook by means of the battery until it switches off independently because of the low battery charge. Note Think about saving your open files in good time, to avoid a possible loss of data. Battery Performance The particular operating duration will vary according to the setting of the energy saving functions. You can adjust these to your requirements under Energy Options in System Control. Apart from this, your notebook will require a higher power demand when carrying out certain tasks. Power Supply Checking the Battery Level In order to check the current level of the battery, move the cursor over the power symbol in the taskbar. The symbol of a battery is displayed during battery operation. You will receive additional information about settings if you double click on this symbol. Note If you ignore the warning signal when the battery level is low, your notebook goes into hibernate mode. Warning! Never remove the battery while the notebook is switched on or if the notebook has not yet gone into hibernate mode, as this may lead to loss of data. Appendix AidComponentsHandling Safety Power Supply 31 Power Management Your notebook offers automatic and modifiable power saving functions that you can use to maximize battery life and reduce overall operatin...