Lenovo IdeaCentre A340-24ICB F0E6 User Manual page 24

liquid or gas. Do not leave it in an extremely low air pressure that may result in an
explosion or the leakage of flammable liquid or gas. Only recharge the battery pack
strictly according to the instructions included in the product documentation.
Battery abuse or mishandling can cause the battery to overheat, which can cause
gasses or flame to "vent" from the battery pack or coin cell. If your battery is damaged,
or if you notice any discharge from your battery or buildup of foreign materials on
the battery leads, stop using the battery and obtain a replacement from the battery
manufacturer.
Batteries can degrade when they are left unused for long periods of time. For some
rechargeable batteries (particularly lithium ion batteries), leaving a battery unused in a
discharged state could increase the risk of a battery short circuit. This could shorten the
life of the battery and can also pose a safety hazard. Do not let 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, 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.
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