Sony WF-1000XM4 充電ケースのバッテリー交換

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Sony WF-1000XM4 Charging Case Battery Replacement: crwdns2935265:00crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

Now the battery is free. Carefully remove it from the bottom of the plastic frame, maybe applying some (moderate!) heat or isopropyl alcohol to loosen the glue if necessary.
Do not damage the battery! It could catch fire or explode.
Place the new battery in the same location and reassemble again.

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