Apple - How can I show the battery as a percentage on my iPod Touch?

No iPod Touches can show the battery percentage at the top of the screen (unless you jailbreak them). There are apps in the App Store that will show the battery percentage when you run them, but obviously not all the time.

There's a discussion thread here: http://forums.macrumors.com/showthread.php?t=1013295

If you would like your your iPod to tell you your battery level as a percentage go to Settings > General > Accessibility > Triple-click Home, and select "Toggle VoiceOver". After you are done, go to your home screen and triple click the home button. VoiceOver will activate. Then tap the battery icon. VoiceOver will say the battery percentage aloud. To turn VoiceOver off, triple click the home button again.

This will only work on 3rd-gen or newer iPod touches and iPhone 3GS or newer.

If jailbroken, SBSettings has a toggle for this.