45 Do not move the computer simply by grasping the display screen. To avoid damaging the screen, do not touch it with any sharp object. LCD image sticking occurs when a fixed pattern is displayed on the screen fora prolonged period of time. You can avoid the problem by limiting the amountof static content on the display. It is recommended that you use a screen saveror turn off the display when it is not in use. To maximize the life of the backlight in the display, allow the backlight toautomatically turn off as a result of power management.Cleaning Guidelines Never clean the computer with its power on. Use a soft cloth moistened with water or a non-alkaline detergent to wipe theexterior of the computer. Gently wipe the display with a soft, lint-free cloth. Dust or grease on the touchpad can affect its sensitivity. Clean the pad byusing adhesive tape to remove the dust and grease on its surface. If water or liquid is split onto the computer, wipe it dry and clean when possible.Though your computer is water-proof, do not leave the computer wet when youcan dry it. If the computer gets wet where the temperature is 0C (32F) or below, freezedamage may occur. Make sure to dry the wet computer.Battery Pack Guidelines Recharge the battery pack when it is nearly discharged. When recharging, makesure that the battery pack is fully charged. Doing so may avoid harm to thebattery pack. The battery pack is a consumable product and the following conditions will shortenits life: