Managing Power 3-4Checking the Battery LevelNOTE: Any battery level indication is an estimated result. Theactual operating time can be different from the estimated time,depending on how you are using the computer.Replacing the Battery PackCAUTION:z There is danger of explosion if the battery is incorrectlyreplaced. Replace the battery only with the computermanufacturer’s optional battery packs. Discard usedbatteries according to the dealer’s instructions.z 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.