OMG I have been using a 3.7 volt SD for months on end. My prodigy came today, and while I'm waiting for the 3 volt batts to charge, I decided to drop two of my 3.7 volt 1000mah batts in, atty be damned (got 60 901 atty's), I wanna try it now! I'm vaping a 36mg/vg mix, prob about 26mg strength, gonna have to drop that some, lol. I know it wont hit quite this hard with the 3 volts in there, but holy cow, I'm light headed! This after only 6-7 puffs! I take real quick 1 second puffs now, trying not to burn out the atty, and it's just insane. This has brought the ease of vaping to an all time high, literally. Thanks PS, let's hope it is as durable as it is functional.