3.7V, Li-Polymer, 270mAh, Headset battery fits Sennheiser, 121147748, 450 Travel, 550 Travel, 1Wh RBC43 If you encounter newer models

If you encounter newer models not yet on our website

Swift 5 Sf514-52t-87v1

315114271 / 315

Svf15n18pxb

Satellite L750-1dh

3.7V, Li-Polymer, 270mAh, Headset battery fits Sennheiser, 121147748, 450 Travel, 550 Travel, 1Wh RBC43 If you encounter newer modelsCameron Sino CS SBA370SL Replacement Battery for Sennheiser Headset 270mAh 1Wh Unlock uninterrupted performance with the Cameron Sino CS SBA370SL replacement battery, designed specifically for Sennheiser Headset. This high quality 270mAh 1Wh Li Polymer battery delivers a reliable 3. 7V voltage with an energy rating of 1Wh, ensuring your device operates at peak efficiency throughout extended sessions. Whatever you are doing this battery provides the