so i have been using a fixed 5volt flashlight mod running 2 tenergy protected CR123a 3.7v and hear lately been hit or miss getting good vapor production... today my buddys ego bat broke so i "riged" a ego battery cap with pos and neg wire and touched them to the ends of my single 18650 Ultra fire 4000mah battery protected and my addy fires right up with no problems other than it does burn the juice a bit if ya hold it to long any insite would help i am using this little rig until it breaks or i get the rest of the parts to finish my dna 20
