iphone 11 wont pair with newest ipad

The Battery widget will show battery levels of other bluetooth devices such as headphones or speakers or Apple Pencil etc...

Not of other iOS or iPadOS devices.

Your iPad would have its own battery widget to display its own battery level.

roddy224 wrote:

I can't get my newest iPad Pro (12.9-inch) (5th generation) to pair with any of my phone's (iPhone 11Pro Max, iPhone 6 S Plus, and iPhone SE)

That is correct you can only pair for tethering.

What exactly are you trying to do.,?