: View real-time battery voltage and busbar current.
This is because Ugreen (and many other brands) "rebrands" generic Bluetooth hardware manufactured by a Chinese OEM (Original Equipment Manufacturer). The underlying chipset and software stack belong to the OEM, which in this case is associated with the name Yuyang. Consequently, you are forced to use their specific app to unlock the device's features. yuyang king bluetooth app hot
Once connected, the app provides a live interface to track your vehicle's health and performance: : View real-time battery voltage and busbar current
For serious cyclists, this interoperability is non-negotiable. this interoperability is non-negotiable.