Thanks! I have to apologize up front, I know of no way to simply answer your question. Regulated mods, as apposed to mech mods, are fairly sophisticated devices. It is common for a two battery mod to be able to produce up to and even a little more than 200 watts but that is conditional. The batteries along with the electronics in the unit achieve this together. It really would not be accurate to say that each battery produces 100 watts. Most single battery regulated mods achieve somewhere around 75 watts.