The new iJoy iJoy Solo V2 kit consists of the Solo V2 battery carrier and the iJoy Limitless Sub Ohm tank. The Solo V2 battery carrier delivers a maximum power of 200 watts and is powered by 2 18650 rechargeable batteries (not included). Equipped with the new IWEPAL chipset, the Solo V2 battery carrier supports all common wire types in temperature control mode. (Ni, Ti, & SS wire). The firmware of the Solo V2 battery carrier is updatable. Please note that the USB port can not be used to charge the batteries. The iJoy Limitless Sub Ohm Tank has a maximum capacity of 2ml and is powered by a built-in 0.3Ohm Dual Coil evaporator.