Why does the Xiaomi Pad 8 need a long charge before powering on?

When the battery has been fully depleted due to long-term non-use, the Xiaomi Pad 8 needs first reach the minimum required startup voltage before the device can power on. During this process, the system enters a pre-charge or low-current charging phase to safely restore the battery voltage.
Because of this recovery process, it takes longer than usual to accumulate enough charge to reach the power-on threshold. Therefore, after the tablet has been unused for a long time, it is recommended to charge it for at least 20 minutes before use. Please use the official charger and the cable to help the battery recover more efficiently, especially when the battery level is extremely low.