Solar Charging Intermittent (NOT THE CONNECTION OR AMBIENT!)

I have three stick-up cams on solar panels each receiving the same amount of light and functional in voltage. Two of the camera that have a non-issue have Wasserstein arrays and the problematic camera has a ring array. The Wasserstein cameras do not recognize the panel installed, and the Ring solar panel is recognized. Question #1 , shouldn't the cameras recognize any panel installed (they can't be smart)? These panels under same environmental and lighting conditions hold battery charge at 100%. #2The Ring panel/ camera has intermittent issues on charging, while no problems with the other 2 cameras. Problems started roughly 6 months ago (July) where it is working at 100% for weeks then drops off and stops charging. I checked the connection the first time, cleaned an d brought the battery in for a recharge. Again for a couple of weeks stayed at 100% then started going downhill with no changes to menu settings. This time didn't disconnect panel and lasted a coulple of weeks at 100% and would not charge. Again brought it inside and charged with same scenerio working as it should for a given amout of time and stops charging. It is ridiculous talking to overseas support preaching from a manual. Support kept saying it was the cold weather and couldn't comprehend that the other two cameras were in the same weather conditions and working fine. She also couldn't digest the fact that it started in July. She kept saying it was a battery issue and I told her to send me anew one and stated that she can't do that just bring it in and recharge it. This just kept going in circles and no understanding that I didn't pay to have to bring an inaccessble camera battery everytime it feels like not charging . (I payed for extended warantee for the last 5 years of having these cameras). Where do I go from here???????