system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why does using cellular data have such a big hit on battery life?
gpt
To get more data the radio needs to work harder, which takes more power. The radio is the second largest power consumer in your phone behind the screen, so if you're say streaming netflix you're killing your battery because you're asking the radio to do a ton of work and then using it to watch a movie.