Troubleshooting Problem: Solar panel is not charging device. Solutions: a. Check if the connecting cable and plugs are connected and in good condition. Clean cable ends if dirty. Replace damage cables. b. Check if the sunlight is directly facing the solar panel, adjust the orientation of the solar panel to ensure that the solar panel receives sunlight adequately. ยข. Check if there is dirt or stains on the surface of the solar panel. Clean the panel with a cloth.