Li-ion Battery fits Ascom
Simotion 840de
including the Logitech Mm50 and Pure-fi Anywhere Speaker 1st
Usually it is around 400 cycles for Lithium Ion and usually this is the same for Lithium Polymer
High Capacity: 2100mAh capacity provides long-lasting power for your devices
Li-polymer Battery Fits Bose, Qc20, Quietcomfort 20, 3.7v, 240mah Industrial>>Medical Battery>>Mir Medical Battery Li-ion Battery fits AscomLi Polymer Battery Fits Bose, Qc20, Quietcomfort 20, 3. 7V, 240mAh Experience the power and reliability of the Li Polymer Battery, specifically designed for your Bose Qc20 and Quietcomfort 20 devices. This high performance battery is the perfect solution for those seeking enhanced service life and dependable performance. Key Features: Compatibility: Fits a variety of models including Mio Mivue C330, Mivue C335, Bose Qc20, and Quietcomfort 20.