Thanks for the support.

I too too was thinking of a few battery “bricks” in the pouch, cable tied up to my phone mount.

I am using the wahoo fitness app since it works well with a heart rate monitor I’ve had for years.
I wont need the monitor during that ride but I want to have a decent app that will track time and route. I know it sounds OT here but the wahoo app drinks electrons. A better app might help.