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21700 battery - which one/why


New member
I am in the market for my first 21700 battery. What's the scoop on the best one to get? Why? It will be used in a Vaporesso Armour Pro regulated mod. The mod is capable of anything up to 100W but when I buy a new battery I want to be able to throw it in my future 300W mod and not have to think twice.