The Duracell D377/376 SR626SW Button Cell Batteries are silver oxide batteries with a diameter of 6.8mm and a height of 2.6mm. They have a voltage of 1.55V and are designed for low drain applications. The batteries are not rechargeable and come in a pack of 5, each weighing 5 grams. With a long expiry date, these batteries are a reliable and efficient choice for powering various devices.
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