Ok i Bought a 510 box mode from madvapes. I have assembled everything to spec. Im trying to figure out if this thing is working right. How many volts to power a 510 cartomizer? I havent recived my 3.7 900mah trustfire bat's yet. I been trying to test with a 1.2v 2000mah Ni-MH battery to see it the mod works. No led light natta. So i pulled out the multimeter and when I press button on the mod im getting the 1.3v comming out of the 510 connector. Does this mean its working correctly and I just dont have enough juice to power the led or cartomizer? Sorry I'm a mod NooB! Thanks in advance