I've tried numerous battery re-calibrations on my droid razr. Battery life was pretty decent on gingerbread then when my phone was updated to ics it suffered. Now that i upgraded to jelly bean it still sucks. If i unplug the phone from the charger at 6am by 5 pm it was just about dead and that's with very little use. When my area went to 4g now i'm lucky if i make it till 12 noon and i hardly use the phone. I thought it was due to 4g so i disabled that now the phone will last to about 1 1:30 again with very lite use. When i unplug the phone from the charger it shows 100% charge. When i arrive at work an hour later i'm already down to 91% and i didn't even use the phone. When i check what is using the battery the android os is the culprit at over 60%. The phone is 14 months old. Is it possible the battery is just starting to go?