I revoked these 3 app permissions and my phone battery life doubled

For a long time, I thought my phone’s declining battery was because of the aging hardware. Bigger and brighter displays, powerful processors, and advanced connectivity all come at a cost. I used to charge my smartphone twice and made sure to carry a power bank when I’m outdoors for long hours. I was being super-curious to tweak around the settings app; I did something simple yet super effective: I checked my app permissions.