The Vision Spinner 2 has got to be one of the best variable voltage batteries on the market! With a 1600 MAH battery life this baby can handle some serious vaping! Unlike the Vision Spinner 1, this battery even has a battery charge indicator light right on the button (White light = 60%-100%, Blue light = 30%-60%, Orange light = 0-30%)! The bottom spin dial to adjust the voltage has also been totally redesigned! The spin dial actually locks into place! That's right, no more voltage issues when you put your battery in your pocket! The voltage on the Vision Spinner 2 ranges from 3.3 to 4.8! The Vision Spinner 2 supports 510 and E-Go threaded atomizers. Available colors include Silver, Gold, Blue, Green, Brown, White and Purple.