Turning Off Wi-Fi and 3G
If you frequently surf the Internet to watch YouTube videos or browse your favorite web pages, you'll want to leave Wi-Fi turned on all the time. If you turn Wi-Fi off and access the Internet, the iPad uses your cellular telephone network, which requires even more energy and drains your iPad's battery in the process. If you don't need to surf the Web or check your email, you can turn off Wi-Fi and 3G to make your iPad's battery last even longer.
To turn off Wi-Fi and 3G, follow these steps:
From the Home screen, tap Settings. The Settings screen appears.
Tap General. The General settings screen appears.
Tap Cellular Data. The Cellular Data settings screen appears, as shown in Figure 2-1. (If you don't have an iPad that supports ...
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