First, make sure that you’re using the correct power adapter:
Check for the following three things on your power adapter:
The QC 2.0 icon. This is the lightning bolt icon at the top of the image.
The output is 9V===1.1A.
An Arlo or NETGEAR logo.
To troubleshoot problems with your Arlo Pro or Arlo Pro2 camera battery:
Make sure that the power adapter cable is fully inserted into the AC power adapter and your camera.
Make sure that the USB port cap is tightly sealed before placing your camera outside.
Try removing and reinserting the battery and power adapter cable. Note: Make sure that you insert the battery in your camera before you plug in the charger.
Log in to your Arlo account and make sure that your camera is online and that the charger icon is displaying while you’re charging your cameras. If the charger icon isn’t displaying, your camera isn’t charging and is operating on battery power.
Log in to you Arlo account and check whether the following error message is displaying: “The charging source connected to the camera cannot charge your battery. Please use an Arlo power adapter.” If you see this error message, try the following:
Try charging a different camera with the same power adapter. If the power adapter charges a different camera, the issue is with the original camera that you tried to charge.
Try charging your camera with a different Arlo power adapter.
Check the LED behavior when your camera is charging. If the LED quickly blinks amber for three seconds, try the following:
Wipe any debris off of the battery or camera’s contacts.