Games & Streaming Apps
As you might expect, mobile games and video streaming apps are some of the worst battery drainers out there. That’s because they’re using up cellular or Wi-Fi bandwidth, putting a strain on your phone’s graphics and processor, playing sound, and likely keeping your iPhone’s display brightly lit.
If there’s a major downside to using Netflix other similar apps, it’s that they can’t really reduce their battery drainage. You can try only streaming content over Wi-Fi. But if you’re a frequent iPhone video streamer or mobile gamer, you may just need to carry around an extra battery pack during your day.