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Agentxiii
Contributor I
Oct 11, 2026 4:08 PM UTC
Answered

Sonos Ace Ultra: left ear cup rattle and short battery life—anyone else?

Has anyone else experienced either of these issues with their Sonos Ace Ultra?

Mine developed a noise/rattle in the left ear cup, as though something inside was loose. I wondered whether it might be the battery, but that’s only a suspicion—I haven’t opened them up to check.

Battery life was also disappointing: roughly 11–12 hours, around a third of the advertised 35 hours.

They’ve now been posted back to Sonos for replacement, so I’m not looking for troubleshooting at this stage. I’m just curious whether anyone else has noticed similar issues, or whether I was unlucky with my particular pair.

If you’ve experienced either, I’d be interested to hear whether a replacement resolved it.

kdowling
kdowlingAnswer
Oct 11, 2026 4:41 PM UTC

I haven’t seen any other messages here about this. So, maybe you just got a defective set. Mine have no rattle or noise. I haven’t tried to see how long the battery lasts, though.

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5 replies

kdowling
kdowlingAnswer
Oct 11, 2026 4:41 PM UTC

I haven’t seen any other messages here about this. So, maybe you just got a defective set. Mine have no rattle or noise. I haven’t tried to see how long the battery lasts, though.

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    Stanley_4
    Stanley_4
    Grand Maestro
    Oct 11, 2026 5:04 PM UTC

    With the noise and short battery life might be one battery plug not being connected.

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      AgentxiiiAuthor
      Contributor I
      Oct 26, 2026 6:07 AM UTC

      Update I’ve received the replacement and they have the same issue. Will be testing and recording the issue with battery life but I think another call to Sonos is in the pipeline. Two weeks for UPS to get them to Poland BTW.

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      franz1172
      Lyricist I
      Nov 7, 2026 6:54 AM UTC

      i have the same problem in both ear cup. I try with the support team but they've been very evasive and still no update if and when they’ll replace the headphones. I’m really angry and disappointed. I thought I was buying a premium brand but they’re no better than any other cheaper stuff.

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      AgentxiiiAuthor
      Contributor I
      Nov 7, 2026 9:10 AM UTC

      I reported the problem with the second pair to Sonos support, and they are now on their way to Poland AGAIN. I’ve seen the official Sonos how-to video on replacing the battery, and I’m baffled by what could be loose with so many screws and cables.

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