BA150, BA151, BA152, WEST-BA151 Battery Compatible with Sennheiser A200, Audioport A200 Set, HDI 302, HDI 380, HDI302, HDI490, IS 150, IS 300, IS 380, R150, RA-85, RI 150, RI 250, RI 250 J, RI 300, RI 810, RI250, RI250-J, RI250S, RR820, RS 2400, RS 30, RS 4, RS 40, RS 400, RS 45, RS 6, RS 60, RS 65, RS 8, RS 80, RS 85, RS-2400, RS-30, RS-4, RS-40, RS-400, RS-45, RS-6, RS-60, RS-65, RS-8, RS-80, RS-85, SET 20, Set 250, Set 2500, Set 250S, Set 500, Set 50TV, Set 810, Set 810S, Set 820, Set 820s, SET-20, SET-250, SET-2500, SET-250J, SET-810, SET-810S, SET-820S, SET90, TR820,