Flat Mini 2.0 510 Thread Battery

Making it all possible is the Flat Mini 2.0’s souped up 400mAh battery offering incrementally voltage adjustment all the way from 1.8 - 4.2v complete with dedicated + - buttons on the side. This lets you dial things juuuust how you like them, enjoying the highest highs and lowest lows of heating with a degree of precision other batteries just cannot provide.