Bold 9650 battery life terrible after OS upgrade

I upgraded the OS on my Bold 9650 2 weeks ago to the latest version.  Afterwards noticed phone felt hot and battery life was less than a third of before.  Now dead after 5-6 hours.  Movement between apps or around the screen more sluggish.  Went out of state for a weekend and the battery life was back to normal until came back home.  Could the new OS cause my phone to think it is in a different location and try to roam all the time?  I don't appear to have any apps running in background that I can tell.  Replaced battery and made no difference.  Any ideas?

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