The tasks that our smartphones are performing are becoming increasingly difficult. All the higher the resolution of the screens, all the more beautiful games and interfaces, all the better pictures and video recordings that we create with the cameras of our devices. All this takes more energy, but the autonomy of our devices does not change at all. Why? Is the capacity of the batteries growing from year to year, or does the iron become more energy efficient?
One can definitely say that modern displays and processors have become more energy efficient. Is it enough to maintain the former autonomy with increased requirements without increasing the battery capacity? Statistics show that not enough.
To date, the average battery capacity of the flagship smartphone is about 3400 mAh. The size of the batteries is also growing. Our colleagues from Android Authority presented a schedule that demonstrates the change in the average capacity of flagship smartphone batteries from 2013 to 2018. The graph shows that the capacity is steadily growing, but does not grow very rapidly.
In 2015, the average capacity was 3000 mAh. For three years it grew by 400 mAh. The most active battery capacity is growing in smartphones Huawei. It does not change in the smartphones OnePlus and not too actively changing in smartphones Sony. It is likely that the trend will continue in the future until the new battery technologies are applied.