I can lap/pause/scroll screens...etc on my Garmin from the hoods, which is nice. But supposedly it switches off when the system goes into sleep mode after inactivity.
I already tried a combo where the bluetooth is connected, but the left shifter isnt, and in that combo there was no battery drain.
I've never used Di2 Bluetooth. BT is a battery drain in any device. What is it providing that warrants it being enabled?
I want Di2 to change gears. That's it.