Battery problem? Nooo! More than 5,500 pictures.
I have read in several places that the battery only allows 300 pictures. This is a complete lie. With a single battery, I am able to shoot more than 5,500 photographs without recharging. All were shot in RAW. I also had activated the stabilizer in normal and sport. The camera was in airplane mode. I do not know if this affects a lot.
I think that only using the electronic viewfinder, you could easily shoot 7000 or 8000 photographs. In addition, I must note that I used a 2-year-old battery that I used to use for my old Nikon d750 for the test.