IBM ThinkPad X20, Руководство пользователя

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DANGER
There is danger of an explosion if the backup battery is
incorrectly replaced.
The lithium battery (IBM P/N 02K6715 UL-recognized
component (file no. MH12566)) contains lithium and can
explode if it is not properly handled or disposed of.
Replace only with a battery of the same type.
To avoid possible injury or death, do not: (1) throw or
immerse the battery into water, (2) allow it to heat to
more than 100 deg C (212 deg F), or (3) attempt to repair
or disassemble it. Dispose of it as required by local ordi-
nances or regulations and your company's safety stand-
ards.
DANGER
Follow the instruction below when installing or reconfig-
uring the Mini PCI option.
To avoid shock hazard, disconnect all the cables and the
ac adapter when you install the Mini PCI option or open
the covers of the system or attached devices. Electrical
current from power, telephone, and communication
cables is hazardous.
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ThinkPad X20 User's Reference