Managing Power 3-5Replacing the Battery PackCAUTION: There is danger of explosion if the battery is incorrectly replaced. Replace thebattery only with the computer manufacturer’s optional battery packs. Discard usedbatteries according to the dealer’s instructions. Do not attempt to disassemble the battery pack.If you often rely on battery power for a long period of time whiletraveling, you may consider the purchase of an additional battery packfrom your dealer and keep it with you in a fully charged state as a backup.To replace the battery pack, follow these steps:1. Make sure that the computer is not turned on or connected to ACpower.2. Place the computer upside down.3. Slide the battery security lock outward to the unlock ( ) position().