I just acquired my first mod and am still confused on batteries. I bought an atomizer that I have tested at 0.89 ohms and would like to vape at 3.0v - 3.2v. I am currently running an Efest IMR 18350 3.7v 800 mAh in a "hand me down" mod tube. I have been researching the AW LiFePO4 RCR 123 battery and would like to know if this battery would be safe/sufficient to withstand my applications? I only want to use 1. If so would I be able to use the same charger I already have, what specifications do I need to verify? From what I could understand is that you can use any battery that will physically fit as long as you are using a coil that is rated for that type of battery and won't overload the battery. I this a true assumption?