EVE 2XER18505M P/N: 103-304742 or equivalent brand (PKCELL) upon stock
– Cell construction: ER18505M, LiSOCl2lithium thionyl chloride (LiSOCl2)
– Nominal Capacity: 7Ah
– Rated Voltage: 3.6V
SR-740 PG2 requires 2 batteries per siren to achieve the 7.2V output needed to operate the siren. Purchasing two is necessary.
Siren MCS-740 uses the same batteries.