Battery life seems terrible for me.. help!

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http://forum.xda-developers.com – I tend to lose about 1% (or a teeny bit more) an hour while on Wi-Fi. I know this is not normal, since others in this forum have reported half a percent loss per hour. Look at my screenshots! Usually Google Voice never shows up in the battery stats, so I don't know why it did now. I only received about 10 texts... it stayed awake for 13 minutes :( Never happened before, but the battery drain was always like this. And then there is Android OS.. 1h 25min?!!? I have sync enabled for: Calendar, Contacts, Google Play Books, Internet, and Gmail (2 accounts for Gmail, the rest are 1 accou (HowTos)