Quote Originally Posted by Skyblade View Post

Actually, that isn't the case. Sony devices go into sleep mode before they totally drain, which extends the battery life considerably. But once fully drained, your current progress is just gone (as is your date/time setting, which I find annoying). It is a nice system, I think. But, while it's a great design element, I don't want anyone to think it actually builds a save state for you or anything. It's the same as closing the top screen on your 3DS or DS, except the system does it automatically.
I know with my PSP Go, the system had a save state function and it would automatically create one when the battery runs out - it wasn't just sleep mode. Was this feature not on the regular models?

I assumed this is how it works on Vita as it won't let you power back on the system. I assume you'd have to let it go uncharged for quite a long time before it lost that information.