Why Is Your Phone's Battery Life So Bad?

Kara Swisher, Lauren Goode and special guest Ina Fried, Re/code's senior mobile editor, talk about the rechargable batteries that power our smartphones, tablets, laptops and more. Why do our batteries seem to be running out faster than they used to? How is battery technology improving? What are some things you can do to keep your phone awake without a charge for longer?