[orlandojumpoff]

Never had severe battery drain with s2u2. it might depend on certain s2u2 settings. i have mine set to come up only when i turn my display back on. it's just like any other app, so you should expect that it uses some of the battery if it's constantly on. with the settings i use, i still get my full day worth of battery, so no complaints from me. love the notifcations preview and direct linking to messages/call history and can't live without them.