Did you know that in 2021, 95% of the population aged 15 and over owned a mobile phone? 77% of them had a smartphone, and 21% another type of mobile. This technological gadget has thus established itself as an essential tool for all layers of the world’s population. It should be noted that, for it to function well and be autonomous, it must have energy. We invite you to have more information on the composition and operation of a battery. On the other hand, we will also give you some tips to extend its life, in order to get the most out of your phone.