It is not recommended to use a power bank to charge the Redmi Buds 6 Active, as the power bank will disconnect the charging if it detects too low of an output current. If the power bank supports a low-current mode, you can use that mode to charge the charging case.
Note:
1. Some devices require a minimum current to initiate or maintain charging. If the power bank’s output is too low, the device will not recognize it as a valid power source, leading to disconnection;
2. Low-current mode, also known as trickle charge or low-power mode, is a feature in some power banks designed to handle charging for devices that require very little power, such as wireless earbuds, smartwatches, or other small electronics.