What does it mean to "allow run in background. Improve phone key stability

[Sochi]

I just got my Model Y. What does it mean to "allow run in background. Improve phone key stability."

Allow or not allow. Thanks.

 

[andaconda]

It means that you will have quicker access to the car (IE: phone acts as a key)

 

[jjrandorin]

I changed this thread title from "optimize battery" to what the question looks to be, since anything around optimizing the battery on this site is discussing the car, not the phone.

 

[Leftlane22]

Allow all the time and make your life a tiny bit easier.