Engineered to support all of the major 12 mm coin cell brands, MPD's BK-885 retainer accepts the popular 1216, 1220, and 1225 coin cell batteries. The low profile solution of the BK-885 supports the growing needs of miniaturization and the rigorous demands of portable electronic equipment. The cost of the retainer is a fraction of the traditional plastic battery holder and can be used for many wireless applications.