Continuous low battery alert?

[Tomb01]

OK, so my wife has a new iPad. It's cool, but she lets the battery get low, and then it goes into a 'beeping' frenzy. It beeps, and beeps, and beeps, until the battery gets above a certain level (20% ?). Is there any way to modify this behavior? I can't seem to find anything in the iOS controls, and found posts on the web that seem to indicate it is not changeable.

Anyone have a solution?

 

[C DM]

Perhaps it's some app that's doing it? iOS itself would just do one alert each time it crosses a certain boundary (like one when it reaches 20% and one when it reaches 10%, for example), and that's it.