Why are there intermittent charging and two charging pop-up reminders when charging the REDMI Note 13 through the Hi-Fi device?

Thank you for your support of Xiaomi products. A damaged or worn-out charging cable is one of the most common causes of intermittent charging. A loose or damaged charging port can cause poor contact between the charging cable and the phone, resulting in intermittent connections.
When the battery level is below 50%, there will be two charging pop-up reminders within the first 14 minutes of charging. This does not affect charging performance and functionality. After charging for more than 14 minutes, there are no abnormalities. However, there is no such issue when the battery level is above 50%. Please use the standard charger for charging and avoid using external OTG devices (Hi-Fi devices) for charging.