My late daddy told me knowledge comes from taking thing apart. He continued by saying, wisdom comes from being able to put the thing back together. I come seeking wisdom. I have a couple Bushnell Trophy cams and a Reconyx. None of them have been working to a level I would prefer. Yes. All the typical things have been considered and corrected. Now, there's no shame in these cams because they all are at least six or seven years old and have been out 24 x 7 x 365. I brought them home, and, seeking knowledge, I took each apart. I was surprised to see what I think is a flat disc battery in each. The two Bushnells are the smaller hearing aid battery. The Reconyx internal battery is bigger. About the size I use in my fob. Am I right, do you know? I should have taken a picture of each before I put them back together. Enlighten me? Are they what I think they are? If so, what do they power?