Ring Solar Floodlight Battery Dead? Device offline

I bought two spare batteries to increase the life of my two Ring Solar Floodlights. I charged them up inside and upon heading outside today I saw both Floodlights are and have been offline. As soon as I added the fresh batteries to each lights second spare slot they came online. Device health shows the battery % at 100. That implies a few things. It’s not registering or charging the original batters. So either the batteries didn’t even make it a year or both solar panels are toast. I don’t see how either is possible that both are affected. If the new batteries remain at 100 then the solar panels must be good. So what do I do and why doesn’t the App recognize both slots to sum up total power? (Or do they? I wouldn’t know if my batteries are toast)