So my battery is having issues. I just got it about a week ago. I know its not super high tech but it shouldn't be this bad. It seems my battery calibration is off. It thinks that the battery is empty when my display shows that I still have two bars of battery left. This just barely happened today. I noticed that after I pulled it off the charger this morning it dropped to half power about 30 minutes later with only a couple of puffs off it. So I plugged it in and it charged until it was at full charge again. Then it has ran fine until just now. I wasn't getting any strong vape even at 6 Volts (which it obviously wasn't pushing out). Now it won't even let me vape it because the battery is so low, yet the screen turns on when I check what voltage I'm running at. Any idea what could be the issue? Any way to calibrate it so it knows what true zero is on the battery? Thanks on advance for the help.