I gotcha, I was on the cameras pretty frequently so that's probably why. Also is the power supposed to not drain as fast when you have the camera visuals toggled off? I was able to keep the ghosts away by just looking at their sprites on the map and not turning on the visuals, not sure if that was an intended feature or not.
Like I said before though, the game is great and I loved all the animations and character designs! I look forward to the full release!