From ego batteries to 18650s we will have what your looking for. For a simple mouth to lung hit we have a range of ego batteries from 650 mah all the way to 1100 mah adjustable voltage. We also carry sony vct 4s for more advanced vapers and samsung lg hg2 for your longer life vaping. All 18650s come with cardboard containers that we insist you keep the battery in these boxes when not in use, as keeping batterys in pockets with other objects unprotected is dangeroue and can cause damage to yourself. If you are using 2 18650 battery devices make sure you keep the batteries together and charge and discharge them together.