Hi, i'm fairly new to e-cigs .. just got my first bottom feeder (v-mod 2.0) .. it comes with 2 Li-ion 14500 3.7v 900mAh batteries , 1 x 2.2 ohm silo atty and . 1x hybrid atty. I'm currently using their battery with the 2.2 ohm silo atty but i'm not getting enough vapor to satisfy me. i would like to know what slightly stronger battery is out there that i could use with this 2.2 ohm silo and where to get it . I already have 2 IFR14250 200 mah batteries that i stack and use with the 2.8 ohm silo sometimes but i think it might be a little too much cuz it sometimes feels like its burning even tho i get a lot of vapor. any suggestions? thanks