Wow, I can get 7-800 shots on 1 (ONE) battery.
It takes You 9 to make 977?????????????????????????????????? I even use the 16-55mm......clearly You have some mistake somewhere. I shoot, chimp, re-chimp, turn off/on between shots every single time, and manage to do 7-800 shots in a couple of hours on 1 battery.
Forgot, I am in boost mode too, single shots.