Canon EOS REBEL T5 Instruction Manual page 285

The battery becomes exhausted quickly.
Use a fully-charged battery pack (p.30)
The rechargeable battery pack performance will degrade over
repeated use. Purchase a new one.
The number of possible shots will decrease with any of the following
operations:
• 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.
• Continuing Live View shooting or movie shooting for a prolonged
period.
• Leaving the Eye-Fi card communication function on.
The camera turns off by itself.
Auto power off is in effect. If you do not want auto power off to take
effect, set [51: Auto power off] to [Disable] (p.181).
Even if [51: Auto power off] is set to [Disable], the LCD monitor will
still turn off after the camera is left idle for 30 min. (The camera's
power does not turn off.) Press the <B> button to turn on the LCD
monitor.
Shooting-Related Problems
The lens cannot be attached.
The camera cannot be used with EF-M lenses (p.40).
Troubleshooting Guide
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