I had the same issue with battery drain. Yesterday after getting through half the day and only having 20% battery left, I wiped the system cache. It has helped dramatically (I'm currently at 70% after 6 hours off charger). I read somewhere that it's a good idea to wipe the cache any time after a system update. Good practice.
Instructions from Moto's website:
How do I clear Cache Partition on my device?
This will remove any temporary files that may be causing the problem, but will not delete your files or settings.
1. With the phone powered off, press the VOL UP + VOL DOWN KEY together + POWER KEY .
2. The device will display different BOOT OPTIONS
3. Use the VOL DOWN Key to SCROLL to Recovery and VOL UP Key to SELECT
Tip: If the device reboots, you may have waited to long to make a selection, you will need to begin the process again.
4. The device will display the Motorola logo and then the Android in distress ( logo with Exclamation mark)
5. Press and hold the VOL DOWN key, then tap and release the VOL UP key.
Tip: You can try this step, holding the phone in landscape. If you are stuck on step 5, try a force reboot by pressing the power Key and Vol Down key, and start the process again.
6. The device will display additional menu options (Text will appear in BLUE)
7. Use the VOL DOWN Key to scroll to wipe cache partition and the POWER Key to SELECT this option.
8. The device will then perform the partition wipe
9. Once the Formatting is complete, press the POWER key to confirm a REBOOT
11. The device will reboot and start the normal power up sequence .