system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why when a phone battery is dead, the phone is still able to turn on and tell you that the battery is dead?
gpt
Because the battery % that you see on the screen showing 1% is actually closer to 10% charge remaining.  
Phone manufacturers know that their users cannot be trusted to manage battery health on their own, damaging their brand as a result. 

So the 100-0 battery scale in actual battery charge is likely closer to 100-10 to protect idiots from themselves.