All DELL Notebooks ** Keep track of how much power is left in your battery to avoid unexpected system shut down or data loss.
** Reduce the brightness of the screen to the minimal readable level. Dell notebooks have keyboard buttons that allow you to do this easily.
** Put your computer to sleep or standby mode whenever you are not actively using it.
** Remove peripherals when not in use. External hard drives, CD-ROMs, zip drives, modems, and other peripheral devices can draw power from your battery even when they are not in active use. Disconnect them when you have finished using them.
** The faster your computer works, the quicker it uses up the supply of power. The heavy workload like 3D applications, playing CD's/DVD's while working on battery consumes more power, which shortens battery life. The fact that battery life varies so significantly depending on the particular mix of applications running on a portable system is one of the main reasons that the actual battery life seen by end users can vary from the estimates published.
** Deep-discharge the battery every few weeks for optimum performance. Deep-discharge occurs when your Dell notebook is used on battery power until the charge is at 0% (the system will automatically go into hibernation). At this point, attach the AC adapter and charge to 100%. Partial charge or discharge causes a lack of uniformity of activated chemicals in the cell, and may cause performance degradation.
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