For your reference, there are the methods to check the battery level of the Redmi Buds 6 Lite below:
1. Check the battery level of the earbuds:
After the earbuds are connected to the phone, you can check the battery level through the notification shade on the phone. It only displays the battery level of the earbuds with the lower battery level;
Note:
Some phones do not support checking the earbuds’ battery level.
2. Check the battery level of the earbuds and the charging case:
When the earbuds are paired with the device, the earbuds are in the case and the charging case lid is closed, open the lid to check the battery level. The battery level of the earbuds is displayed when the lid is open, and the charging case battery level is displayed when the lid is closed. When the earbuds are not in the case, the charging case battery level is displayed regardless of whether the lid is open or closed.