I just got my Efusion duo. Used it yesterday for first time . When I press the fire button 5 times within 7 seconds it locks the device . I did this then let the device alone for 30 minutes to an hour or so and when I'd press the fire button 5 times within 7 seconds , the device would unlock and show the batteries are drained. I'd fire it a few times and they are really drained. I've updated the latest firmware , uploaded the 2 cell settings for running it with dual 18650's , and I don't understand why this is happening? Im currently doing one more test right now to see if it's the same results? Just put in 2 fully charged 18650's and placed it in lock mode , without an atty on it, set a timer for 30 minutes , and will check it when 30 minutes is up , device sitting idle all the while in lock mode. This is my first DNA device. Am I missing something ? Can someone help , please ? Do I have a defective mod or chip ? I figured lock mode would save battery life , not drain them ?