Welcome. My suggestion, if you are the least bit handy is to build a 2XAA battery box mod and get a few atty adapters. It will make life so much easier and vaping more consistent and in the long run save a ton of money. All the parts you need can be found here.
MadVapes LLC
And some great instructions here:
MadVapes How To Page
Wasting money on short lived e-cig batts is a drag, always charging, every few months repacing, these box mods use inexpensive batteries (about $5) that vape 3-4 times as long and have greater longevity (charge cycles).