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How do I exchange the Beoplay H9i battery? – Bang & Olufsen Support
1000mAh ABT-001 Battery For Bang & Olufsen Beoplay H7 H8 H9 H9i Bluetooth Over-Ear Headphones Replace PLB-103 56467 201 012 - AliExpress
Amazon.com: Bang & Olufsen Beoplay H9i Wireless Bluetooth Over-Ear Headphones with Active Noise Cancellation, Transparency Mode and Microphone – Black - 1645026 : Electronics