Fortunately, there is a way not to make this step mandatory every time we are out of the house, otherwise it would have been really difficult to live with this continuous fishing for Wi-Fi which only weakens our phone.
And in fact, it is possible to make the activation and deactivation of the Wi-Fi connection automatic in such a way as to make our Iphone understand that there is no need to go on a continuous search for a network. All you need is the Quick Commands application on iOS, within which you will need to enable two different automations. First of all, the new setting will cause the automatic switching on of the Wi-Fi in a certain GPS range: this translates into the fact that when we find ourselves within a geographical position, which can be our home or our office, Wi-Fi will automatically be activated. Another shrewdness that will be caused is the automatic shutdown of the Wi-Fi which will take place when you move away from the defined geographical position. With this working, the iPhone battery should start to improve and start to last a little longer than before. If the problem persists, however, it is advisable to rely on a technician or go to a specialized Apple center.