Heat And Product Ventilation; Operating Environment - Lenovo K100 Warranty Manual

rechargeable Lithium-Ion batteries completely discharge or store these batteries in a discharged state.

Heat and product ventilation

Computers, AC adapters, and many accessories can generate heat when turned on and when batteries are
charging. Always follow these basic precautions:
• Do not leave your computer, AC adapter, or accessories in contact with your lap or any part of your body
for an extended period when the products are functioning or when the battery is charging. Your computer,
AC adapter, and many accessories produce some heat during normal operation. Extended contact with the
body could cause discomfort or, potentially, a skin burn.
• Do not charge the battery or operate your computer, AC adapter, or accessories near flammable materials
or in explosive environments.
• Ventilation slots, fans, and heat sinks are provided with the product for safety, comfort, and reliable
operation. These features might inadvertently become blocked by placing the product on a bed, sofa,
carpet, or other flexible surface. Never block, cover, or disable these features.
Inspect your desktop computer for dust accumulation at least once every three months. Before inspecting your
computer, turn off the power and unplug the computer's power cord from the electrical outlet; then remove
any dust from vents and perforations in the bezel. If you notice external dust accumulation, then examine and
remove dust from the inside of the computer including heat sink inlet fins, power supply vents, and fans. Always
turn off and unplug the computer before opening the cover. If possible, avoid operating your computer within
2 feet of high-traffic areas. If you must operate your computer in or near a high-traffic area, inspect and, if
necessary, clean your computer more frequently.
For your safety and to maintain optimum computer performance, always follow these basic precautions with
your desktop computer:
• Keep the cover closed whenever the computer is plugged in.
• Regularly inspect the outside of the computer for dust accumulation.
• Remove dust from vents and any perforations in the bezel. More frequent cleanings might be required for
computers in dusty or high-traffic areas.
• Do not restrict or block any ventilation openings.
• Do not store or operate your computer inside furniture, as this might increase the risk of overheating.
• Airflow temperatures into the computer should not exceed 35° C (95° F).
• Do not use non-desktop air filtration devices.

Operating environment

The optimal environment in which to use your computer is 10°C-35°C (50°F-95°F) with humidity ranging
between 35% and 80%. If your computer is stored or transported in temperatures less than 10°C (50°F), allow
the cold computer to rise slowly to an optimal operating temperature of 10°C-35°C (50°F-95°F) before use.
This process could take two hours in extreme conditions. Failure to allow your computer to rise to an optimal
operating temperature before use could result in irreparable damage to your computer.
If possible, place your computer in a well-ventilated and dry area without direct exposure to sunshine.
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Safety and warranty guide
2007.8.20 4:07:37 PM