Battery loses 20% overnight on standby

Hello, I just noticed that my iphone battery lost 20% overnight on standby (11pm - 7am) I made sure I had wifi and bluetooth turned off. I only have one gmail push account that fetches every hour. Everything else is at battery optimized settings. I just wanted to know if this battery loss on standby is normal? Thanks!

rrodby wrote:
i find this interesting. I looked at my multitasking and just about every app I had was still open. I closed them all and opened google, left it open and rebooted and it was still open, clearly different from a computer that closes all apps upon rebooting.I use a lot of my apps, and closing them is , honestly a pain on an iphone compared to a computer.
Because it IS NOT a multitasking bar. It is a "Recently Used" bar. The apps in it may or may not be running in background. Usually not, unless they are social networking or streaming apps. and just because they are NOT in the bar does not mean they are not running. For example, Game Center and Mail will continue in background even if you kill them in the recently used bar. This is one of the most misunderstood features of iOS4.
1) Why would they use up battery just being open? Dont they have to be doing something? Why might rebooting not close apps?
Apps do not use battery just being open. They are suspended (except as I described). This is so they will launch faster when you run them again,
2) Have you tested battery use overnight with apps on and apps off?
3) I need an app to close apps... Apps in iphone dont tweak system though?
Nope. No way to close apps from another app, and no need to unless they are one of the rare apps that run in background.

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