If the battery shows an abnormal state of charge (SOC) during charging or discharging, such as inaccurate readings or large fluctuations, this may be due to a lack of calibration over time or aging of the battery cells; in such cases, we recommend performing three complete charging and discharging cycle to recalibrate the display, and if the issue persists, don’t hesitate to get in touch with after-sales service for further testing.