A new report on “Retaining and Attracting new Customers: Profiling the Apple iPhone User” details what existing iPhone users are dissatisfied with. The thing that peeves iPhone users the most…the battery life. Or lack there of really.

“iPhone owners use more features on a regular basis than non-iPhone owners, with two-thirds browsing the web and sending personal emails daily—features which will considerably drain battery life,” according to Paul Brown, Senior User Experience Analyst at Strategy Analytics.

Kevin Nolan, Vice-President at Strategy Analytics, added, “Given the importance placed on features and style by existing iPhone owners, it is important for Apple to continue to provide innovative, compelling devices, while recognizing the need for improved battery strength.”