IWell, the battery drain could be real, but the training you did was not completed properly so that may mean that it didn't set the flags properly for full and discharged levels, resulting in no correction to the battery meter. In other words, the battery drain you see may not be actual levels of the battery.
First, avoid EVER discharging to 0%. If the meter is significantly out of calibration, it could result in the battery being deep-discharged which can lead to bootlooping, power-cycling, and even to a non-responsive phone where even the charger causes no response other than a White LED on the phone's face.
Second, the training process is based on three key "milestones" during the training.
- The phone must be OFF when charging to 100%
- Once charged, the phone's battery levels should be depleted to (but not more than) 15% for Gingerbread and 10% for Ice Cream Sandwich. In other words, when the phone displays the "Low battery" pop-up on the screen and tells you to plug in.
- The phone must be charged AGAIN to 100% with power off after the first charge and discharge cycle.
If you do that as you see above, you can be sure the low and full flags are set properly and then if you are STILL suffering rapid battery discharge, you can be relatively sure it's either an application or multiple applications that are consuming excessive power, such as if they are running constantly, or it may be due to 4G seeking on the phone where 4G signals are weak, it could be background syncing of things such as Facebook, Motocast (I had this problem), Picasa, Dropbox, Box, emails, or other applications of this kind, or it could be a bad update.
Some have experienced what you describe but after doing a full Factory Data Restore (FDR), the problems went away and their battery life improved dramatically. I have a RAZR MAXX, and right now, the battery is showing 50% after being pulled off charge yesterday morning almost exactly 24 hours ago. In fact, it just passed 24 hours by 7 minutes. At this rate, I should be able to get through most of, if non all of today too before charging again.
Good luck! :biggrin: