Look, I get it. There are very large numbers of people here in Illinois, and the whole country, who are really, really tired of wearing a mask. It's completely understandable. What isn't quite so understandable is deciding the best way to show your displeasure is by throwing bricks at store windows.
That sudden and rapid decrease in your phone's battery life is not your imagination, and it doesn't necessarily mean that you need to replace the battery or phone. The culprit might just be this incredibly cold weather we're experiencing right now.