The Brass Knuckles batteries are built to run on any 510 thread and can be found in a few incredible colors; wood end, gold end, and silver finish. Its vape mod battery provides a 900mAh potential with preheat manner and variable voltage.Simplicity of use on the Brass Knuckles Vape Pen Toss on regular 510 threaded battery and it’s willing to go. … Read More