VPB-10 Vision Spinner Battery 1300mAh 3 Pack. 4 Color Choices

The new Vision Spinner battery is the largest variable voltage eGo style battery made today. It uses smart buck-boost converter technology, which allows you to adjust voltage output from 3.2v ~ 4.8v by spinning the knurled dial at the bottom . A red mark let's you know exactly where you are at! Regulated voltage output remains stable as battery is depleted. An EXTREMELY easy to use and RESPONSIVE variable voltage knob! Available in black, blue, red or silver.