The most important way to conserve battery power for your iPad is to put it to sleep (or to turn it off completely) when you’re not using it. The iPad’s brightness setting is the second-most important factor in preserving its battery (though there’s no sense in preserving the battery but straining your eyes looking at a dim screen). You can adjust the brightness in the Brightness & Wallpaper pane of the Settings screen.

Although the iPad’s battery can last approximately 10 hours, you may want to invest in a battery pack. Although these external battery packs may be cumbersome to lug around, you can use them in emergencies when you need to use your iPad but find that its power has drained away.

Rather than rely on a battery pack, you could also buy a solar panel that can recharge your iPad as long as you can place the solar panel in the sun. You can also buy a car charger that plugs into your car’s cigarette lighter to provide power to your iPad while you’re driving around. If you combine conservation techniques with additional power sources, there’s no reason why you should ever run out of power for your iPad.