2021年7月13日 星期二

Varta custom makes Li-ion cell for hearing aid

Battery specialist Varta has tailor-made a lithium-ion cell for hearing aid manufacturer Eargo, for its its smallest and most advanced hearing aid to date, the Eargo 5. The cell (shiny cylinder in photo right) has been shaped to fit the contours of the hearing aid and, charged for four hours, the button cell will deliver ...

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