@peterleinchen, Why does powertop not offer any info? Firstly it offers the C# states, if your phone wont go in c4, you know something is not right and you can look further.

What process or piece of hardware is taking up your batteryjuice, high activity numbers equals high juice-consumption. One time xbindkeys went mad on my device and I was able to find xbindkeys in the list of powertop. Killed it, ran powertop, fixed it.