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The x1pro has a 2-year warranty for the entire product and a 1-year warranty for the speakers. According to actual test data, after 500 charge-discharge cycles (over 2 years), the battery level remains above 80%, making the speaker fully functional for daily use. The battery in the wireless surround speaker is replaceable. 

However, to provide a better customer experience and avoid lengthy repairs, we offer an affordable speaker replacement service after the warranty expires, rather than a battery replacement.

If you have any other questions, please don't hesitate to contact Nebula Customer Support at service@soundcore.com  for further assistance.