Does Cyanogenmod reduce battery life? My galaxy mini was running GB 2.3.6. I recently rooted my phone and installed CM 7.2. Now it looks like my battery is getting drained a little quicker than before. From what I have heard CM increases performance while giving a better battery life. So is my case an exception? Can somebody suggest methods to increase battery life after installing Cyanogenmod?
I can think of two reasons why a CM ROM might reduce battery life:


CPU governor:
The cpu governor controls the frequency of the CPU depending on the requirement. Your ROM might be using a governor that favours performance over battery life. Selecting a governor that achieves a good balance between performance &amp; battery life might help you. You can learn more about cpu governors here
Battery calibration: 
The battery status is stored in a file called batterystats.bin. Its possible that your phone is using the same batterystats.bin that came with the rom. You can use an application like Battery Calibration to regenerate this file with new/accurate stats.(a myth according to this)