If you are one of those people who close apps in order to save on battery life, then prepare to be disappointed. You can stop swiping every app from that multitasking screen.
Google recently confirmed that closing apps don't help improve battery life. In fact, it might even be detrimental to battery life according to Hiroshi Lockheimer who is a VP of Engineering for Android.
Android has algorithms that can manage apps when we are not using these apps. But when we close the app and then restart again, the app has to reboot and start over again. This takes up more battery life