IBM 5000 - Manual (Page 8)

Lithium Battery Notice
2
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:
– Throw or immerse into water
– Heat to more than 100°C (212°F)
– Repair or disassemble
Dispose of the battery as required by local ordinances or regulations.
Safety Information Statements ix