Canon EOS 77D Mode D'emploi De Base page 39

V Battery Level Indicator
When the power is turned on, the battery level will be indicated in one of
the four levels.
Number of Possible Shots with Viewfinder Shooting
Temperature
No Flash
50% Flash Use
The figures above are based on a fully-charged Battery Pack LP-E17, no Live

View shooting, and CIPA (Camera & Imaging Products Association) testing
standards.
: Battery level is sufficient.
V
: Battery level is low, but the
b
: Battery will be exhausted soon.
v
: Recharge the battery.
m
Room Temperature
(23°C / 73°F)
820
600
Turning on the Power
camera can still be used.
(Blinks)
(Approx. number of shots)
Low Temperatures
(0°C / 32°F)
770
550
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