system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why when my phone is dead and I plug it in it takes several minutes to come back to life but if my laptop is dead and I plug it in, its ready immediately?
gpt
Simply put, a laptop is designed to be able to bypass the battery. Try it: when plugged in, you can safely remove the battery of your laptop without it shutting down. 

Your phone, on the other hand, doesn't use such a bypass. It always feeds straight from the battery. In order to work, you need at least "some" power available, which is why you need to wait a few minutes to get some initial charge going.