Why do laptops immediately boot up when you plug them in after they die but phones take a minute to boot up?
In: 7
Phones run directly off the battery. The only thing the power cord can do in a phone is charge the battery. When your phone dies and you plug it in, the battery needs to charge up enough to run the phone before it can turn on.
Laptops have more sophisticated power supplies; they can run directly off the cord. Even if the battery is stone cold dead, they can immediately start directly off the power cord and charge the battery in the background.
Latest Answers