background programs iPhone 4

Only a small selection of programs are capable of running in the background, the vast majority are simply in a suspended stated.

Basic troubleshooting from the User's Guide is reset, restart, restore (first from backup then as new).  Try each of these steps in order.

If you are regularly having to restore as "new" to rectify battery drain issues then either you have a defective piece of hardware or a specific app that is not functioning properly.  The only way to determine is to restore as new, then load apps one at a time until the culprit is found.

Also, ensure you're using the most current version of apps on the device.

Problem exists even when all apps are closed from the status bar.  Reset and restart do not fix the issue.  The "genius" at the Apple store says that this "can happen sometimes and could be caused by the IOS"; and has happened to him as well.  in addition you can't resore from backup; as the backup is likely corrupted and phone needs to be reset as new.