A few years ago, there was a megapixel race to see who could pack as much resolution as possible into a sensor. It resulted in some awesome technology and cameras that we use today, but it didn’t change how photography is done at an essential level. We still use a box with a sensor in it and a lens if front of that.
It is an undeniable fact that Sony's cameras have a battery life issue, but I want to explain why this is an issue and how you might be able to compensate for it.