Release 5.1
Seems NimBLE is taking a while to release their latest version, and this is causing issues with ESP32-BLE-Gamepad, so for now, the official NimBLE 1.4.0 is the only supported version, and the ESP32-BLE-Gamepad's setBatteryLevel has been disabled to allow for this.
setBatteryLevel will return after NimBLE releases their next official version, and ESP32-BLE-Gamepad will be updated to address some other breaking changes it will also bring