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Extension cords and related devices
Ensure that extension cords, surge protectors, uninterruptible power supplies, and
power strips that you use are rated to handle the electrical requirements of the
product. Never overload these devices. If power strips are used, the load should not
exceed the power strip input rating. Consult an electrician for more information if you
have questions about power loads, power requirements, and input ratings.
Plugs and outlets
If a receptacle (power outlet) that you intend to use with your computer equipment
appears to be damaged or corroded, do not use the outlet until it is replaced by a
qualified electrician.
Do not bend or modify the plug. If the plug is damaged, contact the manufacturer to
obtain a replacement.
Some products are equipped with a three-pronged plug. This plug fits only into a
grounded electrical outlet. This is a safety feature. Do not defeat this safety feature
by trying to insert it into a non-grounded outlet. If you cannot insert the plug into
the outlet, contact an electrician for an approved outlet adapter or to replace the outlet
with one that enables this safety feature. Never overload an electrical outlet. The
overall system load should not exceed 80 percent of the branch circuit rating. Consult
an electrician for more information if you have questions about power loads and
branch circuit ratings.
Be sure that the power outlet you are using is properly wired, easily accessible, and
located close to the equipment. Do not fully extend power cords in a way that will
stress the cords.
Connect and disconnect the equipment from the electrical outlet carefully
Batteries
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.
viii ThinkPad CD-RW/DVD-ROM Combo II Ultrabay Slim Drive: User’s Guide