I recently, two or three months ago, rooted my HTC Incredible and haven't looked back since doing so.  So many doors have been opened and the phone is truly way more fun to use.  It's been an interesting and enjoyable ride trying to find the perfect user experience through experimenting with different rom/radio/kernel combinations and it wasn't until recently that I became truly inexplicably frustrated with my phone.  I had found the perfect rom, delivering an excellent user experience.  This thing was smooth, fast, and friendly.  I could use me wiimote with nesoid and playing contra has never been so fun.  And then it happened... My once less than awesome battery life was way worse!  Almost to the point of making the phone unusable.  On an average day, my battery would fully draid within 8 hours.  An average day for me consists of perhaps 30 minutes of phone conversations, 20 text messages, 30 minutes of reading emails or forums, and 45 minutes of angry birds (I'll get you pigs back for what you did to those poor birds!)  After much reading a coworker hands me an article that I have just implemented.  I would like to use this post to log the results of the process.  So, without further a due, here is the process:

1. Charge the phone fully (ignore the green light and keep an eye on the battery reading under system-power settings)
2. Boot the phone to recovery mode and select Advanced-Reset Battery Stats from ClockworkMod
   1. for those not using clockworkmod, go to the console and type the following:
      • mount -a
      • rm /data/system/batterystats.bin
3. Reboot the phone and unplug from the power
4. Drain the battery completely until the phone shuts itself off
5. Recharge the battery fully

Thats it.  I am currently draining the battery, but I'll let you know what the outcome is...

BTW: the rom is MIUI and can be found here http://forum.xda-developers.com/showthread.php?t=804446