IBM C220p User Manual page 6

All IBM personal computers contain a non-rechargeable coin cell battery to provide power to
the system clock. In addition many mobile products such as Thinkpad notebook PCs utilize a
rechargeable battery pack to provide system power when in portable mode. Batteries
supplied by IBM for use with your product have been tested for compatibility and should only
be replaced with IBM approved parts.
Never attempt to open or service any battery. Do not crush, puncture, or incinerate batteries
or short circuit the metal contacts. Do not expose the battery to water or other liquids. Only
recharge the battery pack strictly according to 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 the 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, which 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.
Computers generate heat when turned on and when batteries are charging. Notebook PCs
can generate a significant amount of heat due to their compact size. Always follow these
basic precautions:
• Do not leave the base of your computer in contact with your lap or any part of your
body for an extended period when the computer is functioning or when the battery is
charging. Your computer produces some heat during normal operation. Extended
contact with the body could cause discomfort or, potentially, a skin burn.
• Do not operate your computer or charge the battery near flammable materials or in
explosive environments.
• Ventilation slots, fans and/or 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.
CD and DVD drives spin discs at a high speed. If a CD or DVD is cracked or otherwise
physically damaged, it is possible for the disc to break apart or even shatter when the CD
drive is in use. To protect against possible injury due to this situation, and to reduce the risk of
damage to your machine, do the following:
• Always store CD/DVD discs in their original packaging
• Always store CD/DVD discs out of direct sunlight and away from direct heat sources
• Remove CD/DVD discs from the computer when not in use
• Do not bend or flex CD/DVD discs, or force them into the computer or their packaging
• Check CD/DVD discs for cracks before each use. Do not use cracked or damaged discs
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