Peephole camera power port

I have numerous Ring devices and have recently purchased a ring Peephole camera for my Florida Condo. I am very disatisfied with the battery life after a full charge. Even with the settings set to minimize battery draw and very little motion to trigger notifications, I am lucky to get two months on the battery charge. Since I am not allowed to drill or mount a standard plug in Ring doorbell (Condo rules), I have no way to keep power continuously to my peephole camera when I am gone for more then 2 months which really stinks and defeats the purpose of having the product. Can you please, please supply an optional blank battery case that would have a plug in USB outlet in the bottom so that I can supply 24/7 power when I am absent for a long time? If you cant develope this, will you at least let me buy a battery case without the battery so that I can wire a USB to exit the bottom. A returned battery or a faulty battery will do. I am an electronic tech and I can make my own external plug in if I have the proper fitting case.