Canon EOS 77D Instruction Manual page 243

3 Enabling Live View Shooting
Number of Possible Shots with Live View Shooting
Temperature
No Flash
50% Flash Use
The figures above are based on a fully-charged Battery Pack LP-E17 and CIPA

(Camera & Imaging Products Association) testing standards.
With a fully-charged Battery Pack LP-E17, continuous Live View shooting is

possible for approx. 2 hr. 25 min. at room temperature (23°C / 73°F).
Continuous Shooting Display
During Live View shooting, if you perform <o> high-speed
continuous shooting with One-Shot AF, keep holding down the shutter
button completely to display (play back) the captured images
continuously. When the continuous shooting ends (shutter button is
returned to halfway position), the Live View image will be displayed.
Depending on the shooting conditions such as when shooting with flash or
shooting long exposures, the captured images may not be displayed (played
back) continuously.
Set [z5: Live View shoot.] (the [z1]
tab in Basic Zone modes) to [Enable].
Room Temperature
(23°C / 73°F)
310
270
A Shooting with the LCD Monitor
(Approx. number of shots)
Low Temperatures
(0°C / 32°F)
270
230
243