Exell Replaces Sennheiser Headset BA150 BA151 WEST-BA151 CPH-522 Fits SET- 20 SET- 820S SET- 810 SET- 810S SET- 250 SET- 250J A200 RI250 RI250-J RI250S HDI302 A200 RS-30 RS-40 RS-45 RS-65 RA-85 R150 Amperage: 60mAh, Chemistry: NiMH Length: 1.300, Width: 0.780, Height: 0.590 Exell Battery Wireless Headset Batteries