The Variable Voltage Passthrough 650mAh is great for saving battery life or enjoy the long lasting battery .Our Variable Voltage Passthru can be used at the computer. When the Variable Voltage battery is fully charged, you can unplug the cord from the battery and carry around with no cord. Available in Black and Stainless.
*This is a bi-functional device with a battery inside and a USB port which can both store power and also vape while charging on your computers.
*There are three volts available in this passthrough easily swapping between 3.2-3.7-4.2V by quick clicks
*When the battery is working on computer, the volt is stable all the way.
*The USB cord is removable and retractable which is more convenient.
Note: stretchable center pin inside battery, can be pulled up and down to match most 510 threading atomizers and cartomizers
Unit: 1 pc
Capacity: 650 mAh
Volt: 3.2V (red LED ring) /3.7V (half red and half blue LED ring) /4.2V (blue LED ring)
Removable cord length: 780mm(30.7in)(Max)