Lenovo ThinkServer TD200x Hardware Maintenance Manual page 18

Statement 2:
CAUTION:
When replacing the lithium battery, use only a type battery recommended by
the manufacturer. If your system has a module containing a lithium battery,
replace it only with the same module type made by the same manufacturer.
The battery contains lithium and can explode if not properly used, handled, or
disposed of.
Do not:
v Throw or immerse into water
v Heat to more than 100°C (212°F)
v Repair or disassemble
Dispose of the battery as required by local ordinances or regulations.
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ThinkServer TD200x Types 3719, 3821, 3822, and 3823: Hardware Maintenance Manual