This is done by a feature called Adaptive Battery, which extends the battery life by learning your habits. The reality of Adaptive Battery is differentIt actually ruins your phone’s performanceTo be upfront, Adaptive Battery isn’t a bad feature. Select Adaptive Battery and toggle off the Use Adaptive Battery option. Stick with Adaptive Battery if…If you are thinking you are also going to turn off Adaptive Battery, then hear me out. If you rarely notice notifications and battery life matters more than split-second app responsiveness, you should leave Adaptive Battery turned on.