Canon EOS-1D X Mark II DSLR Camera (Body Only) - Manual (Page 54)

Turning on the Power
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When the power switch is set to < 1 >, the battery level will be
indicated in one of six levels. A blinking battery icon < b > indicates
that the battery will soon be exhausted.
Number of Possible Shots (Approx. number of shots)
The figures above are based on a fully-charged Battery Pack LP-E19, no Live
View shooting, and CIPA (Camera & Imaging Products Association) testing
standards.
z Battery Level Indicator
Display
Level (%) 100 - 70 69 - 50 49 - 20
Display
Level (%) 19 - 10 9 - 1 0
Temperature
Room Temperature
(23 ° C / 73 ° F)
Low Temperatures
(0 ° C / 32 ° F)
Possible shots 1210 1020
Doing any of the following will exhaust the battery faster:
• Pressing the shutter button halfway for a prolonged period.
• Activating the AF frequently without taking a picture.
• Using the lens’s Image Stabilizer.
• Using the LCD monitor frequently.
The number of possible shots may decrease depending on the actual
shooting conditions.
The lens operation is powered by the camera’s battery. Certain lenses
may exhaust the battery faster than others.
For the number of possible shots with Live View shooting, see page 273.
See [ 5 3: Battery info. ] to check the battery condition (p.484).