When running on battery power, Google Nest's battery cameras and battery doorbells are in "Idle" mode, and they don't seem to do a good job of waking up to detect and record events. We've had a battery camera for 18 months, plugged in with the optional power cable. It detects events as well as our older wired cameras, but if we unplug it and then walk in front of the camera to test it, it does not detect anything.
@kevclay, thanks for reaching out here in the Community. Nest Cameras determine when something moves based on how much an image changes over a short period of time.
So, your Nest Camera may not send an alert if the following is true:
You might have to move your Nest Camera, change your Nest Camera’s angle, or change something in the scene so that you don’t miss important activity.
Hit this link for more information and let us know how it goes.
I appreciate the help, MplsCustomer.