Amazon.com: 2 Pack Replacement for Sennheiser SET250 Battery - Compatible with Sennheiser BA151 Headset Battery (60mAh 2.4V NI-MH) : Electronics
Battery BA150, BA151 headphones SENNHEISER
BA-151) Pile rechargeable pour Sennheiser BA-151 – Multibel
Sennheiser BA 151 / Battery for Set 50 TV, IS 380, IS 150, IS 300
Amazon.com: MPF Products BA 150, BA 151, BA 152 Rechargeable Battery Replacement Compatible with Sennheiser IR and RF Wireless Headsets (Compatible Models Listed in Description Below) : Electronics
BA150 BA151 BA 150 BA 151 BA 152 Battery Replacement for Sennheiser Headphones 881314436941 | eBay
Amazon.com: LIFH Replacement Battery for Sennheiser Set 250, Set 2500, Set 250S, Set 500, Set 50TV, Set 810, Set 810S, Set 820, Set 820s fits Sennheiser BA150, BA151, BA152, WEST-BA151(Ni-MH 60mAh /