Quick Tip

Generally speaking, you don't need to leave your Wi-Fi turned on when your screen is turned off, and Android has a settings area where you can set your Wi-Fi sleep time accordingly. It's buried pretty deep in the settings, so some people may not even know it exists.

To make sure your Wi-Fi radio is set how you want it (to maximize battery life, or to maximize convenience), watch the video to see what you need to do.