Optimizing iPhone Ride With GPS?

[WartanThamar]

As I prepare to embark upon my inaugural BP event, I find myself at the crossroads of navigation, armed solely with the iPhone Ride With GPS app in offline mode. In my quest to conserve battery while charting the course ahead, I delve into the realm of optimization. To fellow adventurers who tread this path, I inquire: how do you masterfully configure your setup to preserve precious energy reserves while steadfastly tracing the designated route? Delving into the realms of voice cues and notification prompts, each possessing their own merits and pitfalls, I seek the wisdom of those who have traversed this digital labyrinth before me.