iPad Battery usage data on iPad 10.5

[1252]

Hi,
since I have the iPad Pro (1.5 year) the data of "Time Since Last Full Charge" is always empty.
Should be this somewhere activated? I made hundreds of full charges.... The same on iPhone 7.

 

[LoveToMacRumors]

Hi,
since I have the iPad Pro (1.5 year) the data of "Time Since Last Full Charge" is always empty.
Should be this somewhere activated? I made hundreds of full charges.... The same on iPhone 7.

Charge it to 100%