The increase in the definition of screens, the increased frequency of chips and memory, or even internet connectivity require increasingly high-performance batteries for smartphones. Manufacturers are well aware that this criterion is essential for all buyers today, especially at a time when high-end models flirt with the thousand euros, or even exceed it. However, the technology embedded in current accumulators has not evolved for a long time. To increase the capacity, no secret: you have to increase the size of the battery. But smartphones are also judged on their thinness and weight.
The gains in autonomy and durability are therefore to be found in the optimization of daily use. The latter is already at the heart of the concerns of engineers, who are trying to reduce the consumption of chips and the greediness of operating systems. On the user side, it is at the level of daily reflexes that we must work.