[Motorola Atrix 2] Apex:
As Jce9182 asked, which rom are you running, and if you're not running any custom rom, are you at least rooted? The issue here sounds like it is most definitely a battery reporting error. This can be fixed by using an app from the market like Battery Calibration. You can also try the following with use of the market app for calibrating the battery. It's best to complete this procedure in the evening before going to bed, so you can leave it at 100% overnight and check in the morning if the issue has been resolved. The whole procedure along with recalibration might take up to 5-6 hours or more!

1. Take the case off your phone (if you're using one, as one of the latter steps involves taking the battery out from the phone while it's plugged in. Make sure your case won't stand in the way.)

2. Install Battery Calibration app from the market: Find it here!

3. Plug in your phone to charge while it's on, and wait until it gets to a 100% (or 96% as it appears in your situation)

4. When the charged, open the Battery Calibration app and look up what the charge is in mV while at fully charged. Write it down.

5. Discharge your phone completely until it shuts off. A good way of doing this quickly is by turning on WiFi, and a video player.

6. Without turning on the phone plug it into a wall charger and let it get to 100% (or 96% if this is all you will be able to see before finishing these steps)

7. When it's charged, without unplugging it from the wall charger, take off the battery cover, and take the battery out. Your phone will "reboot" and show a Missing Battery icon.

8. Without unplugging the phone from the wall charger or turning it on, put the battery back in and wait until the phone recognizes the battery.

9. Your battery should now be recognized by the phone, and showing a charge % significantly lower than 100%. Mine showed only 5%.

10. Let it sit there charging for 2-3 hours. My phone wouldn't charge past 10%, but yours might. The numbers don't matter much as the phone is definitely getting additional charge that could have been lost while flashing ROMs, etc.

11. After 2-3 hours, turn the phone on while holding the volume down button and get into CWM. Do not disconnect it from the charger still!

12. Wipe battery stats in CWM, reboot. Do not disconnect it from the charger still!

13. When the phone turns on, go into Battery Calibration app again and look up your MV numbers- if you were like me, they should be significantly higher than before. Do not disconnect it from the charger still!

14. Before going to sleep - Install Watchdog Task Manager from the market. Go into it's preferences, set CPU threshold to 20%, check "Include phone processes", check "Monitor phone processes", check "Display all phone processes", set system CPU threshhold to 20% as well. Do not disconnect it from the charger still!

15. Make sure your wifi and data connections are off. Now finally unplug the phone from the charger. Go to bed, let your phone sleep too.

16. Success! Next morning check where your battery % is at and if you followed the instructions correctly / got lucky like me, your battery life should be 90% or more. I went to bed with 98% and woke up to 94%. So, I consider this mission a success.

(Your general battery capacity should have increased, even if something still was draining the battery, you will be able to find the infringing process in WatchDog with the settings we've set up in step 14)

Hope this helps... :good: