When I look in settings/about edge/battery use, I find 'Phone Idle' always at the top of the list with the highest percentage.

After 37 minutes -

Phone Idle - 73%
Display - 20%
Android System - 5%
Android OS 4%

WIFI is off via switch and software setting. Unit does not have latest update.

What is 'Phone Idle'?

Gunner...