Proface PS4800 - 19 Panel PC" - Manual (Page 190)

Maintenance
190
NOTE: Replacement of the battery in the Industrial Personal Computer other than
with the type specified in this document may present a risk of fire or explosion.
WARNING
IMPROPER BATTERY CAN PROVOKE FIRE OR EXPLOSION
Replace battery only with identical type: Type CR2477N.
Failure to follow these instructions can result in death, serious injury, or
equipment damage.