As can be seen from this thread, PT yechnology is still iffy. But it's still way ahead of battery power. The main problem with batteries is their small capacity and lack of power to drive the atomizer. This is due to the fact that they foolishly make ecigs to look like cigarettes, a biig mistake in my opinion.People hate cigarettes, so why make anything that resembles them? One manufacturer is producing an inhaler that contains two batteries and doesn't resemble a cigarette particularly. The technology has certainly improved immensely in the past year. I gave up on it a year ago and recenty revisited
the area and now have jumped back in. The prices have also dropped quite a bit.
All in all, very good progress.
You are correct! Thus the reason for batt mods. With the 510 PT that uses a batt, the battery is a 10440, and has a capacity just a bit more than a mega batt, about 350 mAh. My Bartleby, however, is a PT that runs on a 14500 battery, which is 900 mAh, and will give me 4-5 hours of heavy vaping offline, and has a mini USB jack on it for charging, or vaping while online.
Bartleby
Because of the higher capacity of the 14500 batt, you are also putting more voltage on the coil. With reg batts the coil voltage is around 3.1V,
not 3.7V. You are very close to 3.7V with the 14500, as long as the electronics are done well. And this difference in coil voltage does make a big difference.