SteamCloud EVOD Vape Battery for Cartridges is a 900mah battery with variable voltage options. Fine-tune the temperature and equip any cartridge to the vape whether for oils, wax or dry herbs. I got the one for the oil tank as that is the preference and it has a dial on the top.
My Opinion: This fits perfectly in my pocket to take with me on the road traveling and in also could be placed in a pouch. It works well and priced just right. The flavor of the oil coming out is flavorful.
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