I have Roku 3900 Express.
The remote that came with it has no way to determine battery level.
In Roku I went to Settings > Remotes and Devices > Remotes and it does not list my remote. Instead it asks me to set up my remote by pairing it to the Roku device. I am unable to pair the device because there is no pair button on the Roku remote.
I have two Roku devices where either remote works fine.
My question is, how do I determine the battery level of a Roku remote.
Pairing the Roku remote with the Roku 3900 Express is not valid because there is no pairing button.
You can only check the battery level via the menu on voice remotes (the ones with a pairing button). The remote you have is a simple remote that doesn't require pairing. You point it at your Roku device and it either works or it doesn't. You can check whether a simple remote is transmitting by pointing it at a digital camera like the one in your phone. When you press a button on the remote you should see a flash on the camera screen.