I have a Rapoo m550 mouse based on YiChip 1201. It has a battery service on Gatt, but no battery attribute. Device ED:8E:0E:BF:E0:B8 (random) Name: RAPOO BT4.0 MS Alias: RAPOO BT4.0 MS Appearance: 0x03c2 Icon: input-mouse Paired: yes Trusted: yes Blocked: no Connected: yes LegacyPairing: no UUID: Generic Access Profile (00001800-0000-1000-8000-00805f9b34fb) UUID: Generic Attribute Profile (00001801-0000-1000-8000-00805f9b34fb) UUID: Device Information (0000180a-0000-1000-8000-00805f9b34fb) UUID: Battery Service (0000180f-0000-1000-8000-00805f9b34fb) UUID: Human Interface Device (00001812-0000-1000-8000-00805f9b34fb) Modalias: usb:v1235pAA22d0001
Created attachment 289593 [details] Capture
Created attachment 289595 [details] Bluez output