The average battery capacity of an Android phone has increased from around 3000 mAh in 2015 to 5291 mAh in January 2026, with certain Chinese OEMs now reaching up to 10,000 mAh in mainstream smartphones. While battery capacity and tech are growing at a rapid pace, so is the power consumption of Android apps. In fact, I charge my device about as often as I did in the old days.