How much time does an iPhone 4s take to lose all battery?

I accidentally dropped my iPhone and my screen got black. I know the reboot will work but the lock button doesn't work either. Hence I need to know how much time will it take for the iPhone to lose all of its battery and then I can plug in and use it.

PS: The cellular or the Wi-Fi is off and so are location services.

It all depend. It matter how many app r running in your iPhone. Let's said that 10 apps is running in your iPhone right now. Now it should start to lose 3% of it battery by second and so on

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