iPhone battery life algorithm?

[Faize]

Does anyone know how Apple calculates battery life? It's clearly not a linear algorithm unlike Android/Windows given how 100% lasts for ages whereas 10% means your phone's going to shut down within an hour or less.

 

[GGJstudios]

It's based on the current power demands, which flucuate wildly, depending on what you have running at any given point in time, Bluetooth, wi-fi, cellular, etc.

iPhone Battery and Performance - Apple Support

Understand iPhone performance and its relation to your battery.

support.apple.com