What to do if the battery of the Xiaomi Nose Hair Trimmer runs out after one use and doesn't work the next time?

For your reference, there are a few steps you can take to address the issue:
1. If there has been a significant interval between uses, the internal battery will have naturally discharged. Plug in the trimmer using the Type-C charging cable and allow it to charge fully. A complete charge takes around 1.5 hours;
2. For trimmers that are not used frequently, it's a good practice to charge them at least once every six months. This helps maintain battery health and prevents it from depleting completely;
3. Ensure that the charging cable and port are clean and properly connected. The poor contact can prevent the battery from charging effectively.
If the trimmer still does not work after charging, there can be an issue with the battery itself. Please contact the after-sales service center if the problem persists.