When Using Your Computer 174 Ground yourself by touching the unpainted metal surface of the I/O panel on the back ofthe computer.While you work, periodically touch the I/O panel to dissipate any static electricity thatmight harm internal components.Protecting Against Electrostatic DischargeStatic electricity can harm electronic components inside your computer. To prevent staticdamage, discharge static electricity from your body before you touch any of your computer’selectronic components, such as a memory module. You can do so by touching an unpaintedmetal surface on the computer’s I/O panel.As you continue to work inside the computer, periodically touch an I/O connector to removeany static charge your body may have accumulated.You can also take the following steps to prevent damage from electrostatic discharge (ESD):• When unpacking a static-sensitive component from its shipping carton, do not removethe component from the antistatic packing material until you are ready to install thecomponent. Just before unwrapping the antistatic packaging, be sure to discharge staticelectricity from your body.• When transporting a sensitive component, first place it in an antistatic container orpackaging.• Handle all sensitive components in a static-safe area. If possible, use antistatic floor padsand workbench pads.Battery DisposalYour computer uses a lithium-ion battery and a reserve battery. For instructions about replacingthe lithium-ion battery in your computer, refer to "Removing a Battery" on page 44. The reservebattery is a long-life battery, and it is very possible that you will never need to replace it.However, should you need to replace it, the procedure must be performed by an authorizedservice technician.Do not dispose of the battery along with household waste. Contact your local waste disposalagency for the address of the nearest battery deposit site.When Using Your Computer(continued)
