But you don’t have to set an alarm to wake up and unplug your phone from its charger. iPhones, Samsung Galaxy phones, and Google’s Pixel phones all have optimized-charging features that allow you to set a charging max of 80%. On an iPhone, open Settings and then tap Battery > Charging Optimization to select the 80% limit. On a Samsung Galaxy handset, open Settings, tap Battery, and then within Battery Protection choose the Maximum setting for the 80% limit. Google Pixel phones offer, in their settings, only an automatic version called Adaptive Charging, which uses AI to learn your charging habits and slows down your phone’s charging. You can activate it by opening Settings and tapping Battery > Adaptive Charging.
