Canon EOS-1D X Mark III Advanced User's Manual page 67

Battery Level Indicator
When the power switch is set to <
Display
Level (%)
Note
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 Wi-Fi function or Bluetooth function.
• Using the screen frequently.
The number of available shots may decrease depending on the actual shooting
conditions.
Lens operations are powered by the camera's battery. Certain lenses may exhaust
the battery faster than others.
See [ : Battery info.] to check the battery status (
>, the battery level will be indicated.
100–70 69–50 49–20 19–10
).
67
9–1 0