Apple has packed a lot into iOS 26—including a new battery saving mode. Image: Apple Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent every weekday. Modern-day smartphones continue to get ever more powerful, intelligent, and versatile, but they do have their own kryptonite: dead batteries. If your phone’s battery level reaches zero, then it’s suddenly no use at all. That means phone makers are constantly trying to find more ways to get more time be...