The IB Li Golf App can connect to the meter via Bluetooth. The meter can transmit data to the App in real time, so you can understand the battery operation status and display various parameters of the battery pack: SOC, voltage, current, voltage difference, charge and discharge status, device search, fault status and other information. It also has fault prompts and fault handling methods. You can also upgrade the battery pack and meter device to make the device support more functions and ensure the normal operation of the device.