Please be aware that although the eufyCam E40's integrated solar panel continuously charges the battery, the camera continues to draw power while in operation. As a result, if the battery drains quicker than the solar panel can recharge it, the battery percentage display will indicate that the camera is not fully charged.

Moreover, several environmental factors, such as weather conditions, will also directly impact the charging efficiency of the camera's integrated solar panel, which needs direct sunlight to ensure its optimal charging performance.

If you have any other questions about the eufyCam E40, please don't hesitate to contact eufy Support Engineers for further assistance.