Foreflight and IOS7

[midlifeflyer]

I did too.  Try reset the battery.  Run the battery down to 0% then charge it fully. No peeking.  Anecdotal only. 

 

There's a bunch of advice on the internet in helping with iOS 7 battery drain.  Google ios 7 battery saving tips

 

I do most of the setting change recommendations. My in-flight-specific ones are:

• Close all apps that are not being used.
• Keep wifi or bluetooth on only if you need to actively use one of them.
• Lower the screen brightness as much as you can while still keeping it readable.
• Put the iPad to sleep unless you need it for something

That last one is a biggie and based on the concept that an EFB is first and foremost, an enhanced electronic chart. If I'm en route, navigating by navaid (including panel GPS), I don't need my chart out all the time, whether it be "paper or plastic."

 

For longer trips where I am really concerned, I also plug it in, or at least have the "cigarette lighter" plug available in my flight bag.