Fire Alarm Batteries - American Made

This sources sought synopsis was publicized to find Buy American Act compliant alternatives to the Chinese-made batteries which are a component of this Simplex Fire Alarm certified as a total system under UL 864 (Fire Alarm systems). It has come to my attention that Simplex chose a battery which was made in China to be certified as a component of their fire alarm system and currently there is no other battery certified under UL 864. Through research and inquiry relating to this posting, I have found no other source to meet this UL requirement. As a result, this sources sought notice is hereby concluded with negative result. Simplex has been made aware of this and may elect to seek American made battery alternatives for recertification under UL 864. Interested vendors may wish to solicit directly with Simplex.