So Wi-Fi is not active during the ride. You can see the Wi-Fi icon in the status bar when it’s connected or trying to connect. If you do see it during a ride that would be a bug you should report.
I have problems occasionally where I have to restart my Pixel 9 to make live track work, and maybe something similar is causing your BT battery drain, might be worth trying.
Richie, last ride I experienced first time live track failure but thought it was a phone problem. Had to restart phone and also email a new livetrack URL, continued working after that. Diffrent message to network coverage loss.
My latency problem last year I suspect due to phone having ‘optimised’ BT app power mode. Later in ride causing phone BT app to cause delayed ACK’s / replies to Roam data polling. Roam probably doing many comms retries, loading CPU and subsequently not servicing other functions. Poor allocation of real time multi tasking resources? Clearly, intense CPU activity increases consumption.
All speculation because Wahoo support simply ask stupid questions rather than engaging in meaningful technical analysis and discussion!