Di2 battery level display used to be shown as a number, now it's an icon. Can I change it back?

1. On top of that, if you have 5 bars why not just keep it simple at 20% per bar.  Why make it confusing and have a non-standard formula.

The best practice for lithium batteries is to re-charge at 40%. I can almost understand adding the graphical battery capacity status, but why in the world would Garmin eliminate the numerical field?

It gives greater sensitivity at the low end of the battery charge, which is where you need it.

Indeed, who cares if it 50% or 70%, you will be able to make a ride

I do. Because it is the battery level of my e-bike. between 50% and 70% is a difference of 15km. That means driving or pushing.

Could you provide details on your ebike system as my understanding is that this change should only impact the Di2 battery and not any ebike systems.

i have a MTB Merida e-one sixty 2018. with a shimano motor e8000 and the bluetooth display SC-E8000. With this system, the motor battery is displayed as a Di2 battery. I had the edge 820 explore before. since it didn't work with this one, I bought the 830.

Thanks for the information.

 " ....You can also see the % in the Sensor Details UI ...."   

How and where  can I see this exactly?  Can it be shown on an activity screen field?