Notes on Use
Other precautions
Sony Notebook Computer User Guide
n N 115 
On Cleaning CD-ROM and DVD-ROM Discs
❑Fingerprints and dust on the surface of a disc may cause read errors. Proper care of the disc is essential to maintain its reliability. Do not use solvents such as benzine, thinner, commercially available cleaners or
❑For normal cleaning, hold the disc by its edge and use a soft cloth to wipe the surface from the center out.
❑If the disc is badly soiled, moisten a soft cloth with water, wring it out well, and use it to wipe the surface of the disc from the center out. Wipe off any remaining moisture with a dry soft cloth.
On Using Batteries
❑Never leave the battery pack in temperatures above 60° C, such as in a car parked in the sun or under direct sunlight.
❑Battery life is shorter in a cold environment. This is due to decreased battery efficiency at low temperatures.
❑Charge the batteries at temperatures between 10° C to 30° C. Lower temperatures require a longer charging time.
❑While the battery is in use or being discharged, the battery pack heats up. This is normal and is not cause for concern.
❑Keep the battery pack away from all sources of heat.
❑Keep the battery pack dry.
❑Do not open or try to disassemble the battery pack.
❑Do not expose the battery pack to any mechanical shock.
❑If you are not using the computer for an extended period of time, remove the battery pack from the computer to prevent damage to the battery.
