2 x NiMH-battery - 60mAh (2.4V) - for wireless headset, headphones replaces Sennheiser BA150, BA151 - Electropapa
Sennheiser Battery BA151 | Canadian Hearing Services
2x BA 150,BA 151,BA 152 Battery for Sennheiser IS 150 RI 150, Set 250 RI 250, IS 300 RI 300, RS 45 HDR 45, RS 85 HDR 85, RI 50 Set 50 TV, RI 55 Set 55 TV, RI 810 Set 810, RR 820 Set 820, RS 2400
Wireless Headset Battery BTB-BA151 suitable for AKG, Sennheiser, Williams Sound | Batteries Direct
Battery suitable for Sennheiser IS 150 - 60 mAh battery - BatteryUpgrade
Sennheiser BA 151 Battery 2.4V/70mAh, NiMh | MUSIC STORE professional
Battery type BA150, BA151, for Sennheiser wireless headphones - Vlad