Whether you’re an early adopter who is already happily tap
ping on your new iPad or just happily using your first or second generation, you’ve likely encountered the bane of all portable devices: a low battery. Whether due
to prolonged time between charging or heavy use (I’m looking at YOU, Infinity Blade II) eventually your device’s batter
will slip into the dreaded red reserve.
OSX Daily has a good tutorial on how to extend your battery charge. Tips range from decreasing the brightness of your screen to disabling functions you aren’t using (bluetooth, location services, notifications). The article includes some additional pointers from Ars Technica as well.
I read OSX Daily regularly- check them out, it’s a great source of information.