Wyse 3315SE Reference Manual page 48

Table 5-2 Specifications for the 3515SE, 3715SE, and 3720SE Terminals, Continued
Specification
Battery
Caution
Your terminal may contain a battery. There is a danger of explosion if the battery is incorrectly replaced. Replace
the battery with only the same or equivalent type recommended by the manufacturer. Dispose of used batteries
according to the manufacturer's instructions.
3515SE
N/A
3715SE
N/A
3720SE
CR2032 Lithium, coin-type,
3V battery (see Caution)