I was thought of a smaller atty at 3,7 volts boom before I go to 7,2 but the problem was that the current (about 2,5 amperes on a 1,5 ohm atty) is big for this small atty. If we send 2,5 amperes to a bigger atty then we will have much better result and much more watts without burning it.
I have thought for regular batteries too friend. I have think of almost everything in this e-cig world. But the problem is that if we want to make a simple 3,7 volt device we have to put at least 3 batteries inside, so a big GG. But we can make another flat GG style like a box.
But lets say that we just make an atty for 1,5 volt:
1) If the resistance is at 1,5 ohm the current will be at 1 ampere but the watt will be at 1,5. Very small power to produce smoke
2) If the resistance is at 1 ohm the current will be at 2,25 ampere (atty will burn) and the watt still will be very low (1,5 watt).
3)If the resistance is at 0,5 ohm the current will be at 4,5 ampere so atty will burn!!! No reason to talk about watts now for sure. Exept this, the battery will get discharged very quickly
Its a dead end Boom