IBM A40I TYPE 2271 Hardware Maintenance Manual page 103

CAUTION:
When replacing the battery, use only IBM Part Number 33F8354 or an equivalent
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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Chapter 10. Related Service Information