Wish list:

• Provide battery info over USB (not sure if this is technically possible but I think it is)
  • This is especially useful for dongles.
  • For example, it would be nice if battery info is available in upower
• Use the lowest battery value as the main battery value, similar to wireless earbuds.
  • Optionally make it configurable?
• Provide a way to configure battery descriptions for split keyboards.
  • Current implementation technically violates specification for split keyboard with 3 or more parts, since all battery services have the same 0x0108 "auxiliary" description.
    Quote from 3.1.2.1. Characteristic Presentation Format descriptor of https://www.bluetooth.com/specifications/specs/bas-1-1/

    ... and that is unique among all instances of the Battery Service ...

  • While each instance has a unique name in Characteristic User Description, it's impossible to distinguish which battery is from which keyboard part in a split keyboard with 3 or more parts.