Try this Tsunami 400mAh Slim Battery Variable Voltage Rotate if you’re looking for a convenient way to vape while on the go.

A high-capacity lithium battery ranges in voltage from 3.3 to 4.8 V, which powers this vaping device. While the 10-second draw time and fast heat-up make it ideal for on-the-go sessions, the vapor quality and production can be adjusted to your liking using the dial. This 7-inch tall battery is compact enough to stow away in a purse or pocket for discreet, trouble-free vaping on the road.