Apple claims a pretty impressive battery life for the iPad – up to 10 hours of use on a full charge. But that doesn’t mean you won’t want to find ways to squeeze even more life out of it, or that you won’t have emergencies where you need to sacrifice some features to use the device a little longer. For those situations, here are ten tips on conversing iPad battery life.

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1. Turn Off WiFi

Keeping your WiFi connection enabled drains battery, whether you’re connected to the Internet or not. So, if you’re not connected – and don’t plan to be for a while – you can conserve the iPad’s battery by turning off WiFi. Do this by tapping Settings -> Network -> WiFi -> and moving the slider to “off”.

2. Turn Off 3G

Only some iPad models have a 3G data connection built in, but those that do run down their batteries when using the always-on Internet connection 3G provides. If you don’t need to connect to the web, or need to conserve battery more than you need to connect, turn off 3G. Do this by tapping the Settings app -> General -> Network and then sliding 3G to “off”.

3. Turn Off Bluetooth

You may be getting the idea by now that wireless networking of any kind drains battery. It’s true, so another way to save battery life is to turn off Bluetooth. Bluetooth networking is used to connect devices like keyboards, speakers, and headphones to the iPad. If you’re not planning to connect to any of those, turn Bluetooth off. Do so via Settings -> General -> Bluetooth -> and moving the slider to “off”.

4. Turn Off Data Push

This feature automatically pushes data like email from the web to your iPad when it’s connected to the Internet. Since wireless networking always costs battery life, if you’re not going to use this feature, turn it off. You’ll need to set your email to check periodically (if you want to get email on your iPad, that is), but that’s often a good trade for improved battery life. Turn this feature off via Settings -> Mail, Contacts, Calendars -> Fetch New Data -> and move the “Push” slider to “off”.

5. Fetch Email Less Often

If you’re not using data push and want to get email, you’ll need to tell the iPad how often it should check your email accounts. The less frequently you check, the battery it will be for your battery. Update these settings at Settings -> Mail, Contacts, Calendars -> Fetch New Data, and change the settings just below the Push menu.

6. Turn Off Location Services

Another form of wireless communication the iPad employs is location services. This is what powers the GPS functionality of the device. If you don’t need to use that (don’t need to get directions, use a location-aware app like Foursquare, etc.), turn off locations services via Settings -> Location Services and move the slider to “off”.

7. Use Auto-Brightness

The iPad’s screen can automatically adjust to the ambient brightness of the room its in. Using this feature will reduce drain on the iPad battery because the screen will automatically dim itself in bright locations. Turn this one via Settings -> Brightness -> and move the Auto-Brightness slider to “on”.

8. Reduce Screen Brightness

The screen brightness setting controls the default brightness of the iPad’s screen. As you might expect, the brighter your screen is, the more juice is required from the iPad’s battery, which reduces its life. So, the dimmer you can keep your screen, the longer your iPad’s battery life. Tweak this settings by Settings -> Brightness and moving the slider to a comfortable settings.

9. Turn Off Equalizer

The iPod app on the iPad has a music equalizer built in that automatically adjust settings (bass, treble, etc.) to improve the sound of music. Because this is an on-the-fly calculation, though, it drains the iPad’s battery. If you’re not a high-end audiophile, you can likely live without this being turned on most of the time. To keep it off, go to Settings -> iPod -> EQ -> and set it to “off”.

10. Auto-Lock Sooner

You can determine how quickly the iPad’s screen should lock when it hasn’t been in use. The shorter the time before it locks, the less battery you’ll use. To change this setting, go to Settings -> General -> Auto-Lock and choose your interval.