I wanted to have a report of all my battery devices, by type of battery with the quantity used.
With this report, I can easily get an overview of my batteries and plan my battery purchases.
Unfortunately, at the moment, in Home-Assistant, there is no way to know the type of battery and the quantity used for a device.
But Home-Assistant offers a way to customize entities, so I added battery type and amount used per device.
To simplify the management, I have documented all of them in my github
Feel free to use it and suggest new features or better ways.