As any navigation based app consumes a lot of battery when running, we recommend that you keep your phone plugged into an in-vehicle charger, especially for long trips. Advanced features like Dual Camera mode and Forward Collision Warnings consume more battery and cause higher heat output. These features are disabled by default, but you can enable them under Profile → Settings.
Driver only requires your cellular data for navigation! Your phone is transformed into a fully functional smart dash cam with forward collision alerts without touching your data!