Sennheiser HD 4.50 Battery Replacement

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Sennheiser HD 4.50 Battery Replacement: crwdns2935265:00crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

Locate the side designation on the headband-earpiece junction.
The battery is on the left side.
The motherboard is on the right side.

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