Spotlight Cam Battery not charging with solar panel

Hi guys, I attached my solar panel to my spot cam battery properly. But the status in the ring app doesn’t change at all, it still shows “Add a ring solar panel to extend battery life”. Does this message suppose to change after I connect the panel?? I doubt the panel is charging the battery as well. Battery drops from 100% to 95% within a day.
Another question I have is the solar panel doesn’t have screw tab on the end of the cord, is this normal??
Thanks for any suggestions or help!

Regards,

James