You are correct! I posted with the assumption that everyone understood that the Bolt and the companion app had to be connected for Live Tracking to work. But since Live Tracking is done in real time, A cellular connection to Wahoo’s server has to be established and that means constant data streaming to the server. In my experimenting with Live Track on my Bolt, I found this unacceptable for my situation.

Before I got my Bolt, I was using my iPhone SE running Cyclemeter as my cycling app. The phone was connected to a Wahoo RFLKT to display my ride data without having to keep the phone’s screen turned on. I also had a Wahoo BlueSC and a Wahoo TICKR connected to the phone. I optimize my phone for battery life turning off notifications for all but a few apps and have only the cycling app running while riding. Each year, I do a cross state ride and used that setup to notify my wife of my location. As I mentioned, I have the app send an email every 20 miles. Using that combination, I was able to ride an entire day (usually 8 hours) without charging my phone along the way.

I purchased my Bolt after my RFLKT finally bit the bullet and started experimenting with the Live Track feature. Same phone, but the BlueSC was replaced by Wahoo RPM speed and cadence sensors. I normally ride 40-60 miles a day so I set up Live Track and did one of my normal 40 mile rides. I did the ride at the approximate speed as the cross state ride and that took about two and a half hours of ride time. At the end of my ride, my iPhone battery had a total of 24% battery life remaining. The next day, I did a 60 mile ride and my phone battery died before I was done. I repeated the 40 mile ride using the Bolt strictly as my computer and Cyclemeter as my tracking option. The companion app was not connected to the Bolt. At the end of that ride, I had 78% battery life remaining. That year, I used the combination of the Bolt and Cyclemeter on my cross state ride. The ride is broken up in two and a half days with the first day being 60 miles and 80 miles for the remaining two days. At the end of my 80 mile days, I had 44% and 46%, respectively, battery life remaining.

Yes, I document silly stuff like this just for S&Gs. And while other users may have received different results, I can only go by my personal experience. With that said, my experience tells me not to use the Live Track feature on very long rides unless you have spare battery chargers that can be recharged at the end of each day and an unlimited data plan for your phone. I do believe that the OP’s 100K rides falls into this category.