A. 1. Check for background app refresh settings by going to Settings > General > Background App Refresh and disable it for Musica XM. 2. Reduce screen brightness and close other apps while using Musica XM to conserve battery.
B. 1. Use Low Power Mode by going to Settings > Battery > Low Power Mode to extend battery life while using the app. 2. Monitor battery usage in Settings > Battery to identify if Musica XM is consuming excessive power compared to other apps.