This is an issue which I'm hoping @Mooch will be able to chime in on but I'm interested in other people's opinions as well. The hard cut off voltage of the DNA 250 is set at 2.9 volts and cannot be adjusted. I find this frustrating as it starts cutting out for low battery when the battery is still at 20%. I ran the battery analyser on my 30Q's so the battery meter should be accurate. The batteries are only a month old as well. The load voltage is 2.9 volts when it starts to cut out but the resting voltage is still at 3.4 volts so there is still a bit of life left. If only I could lower the hard cut off then it would compensate for the voltage sag and let me get more vaping time from my batteries. Do people think it would be a good idea to allow the hard cut off to be lower?