Apple Update Doesn't Solve IPhone Battery Drain

According to 9to5Mac, dozens of iPhone 4S users are complaining they continue to experience poor battery performance despite having downloaded the update and resetting their phones.

"Installed the new IOS 5.0.1 two hours ago," one user wrote. "Five percent battery drain in 45 minutes with Wi-Fi and location services turned on and me not touching the iPhone 4S. The new update doesn't seem to help much."