This USB charger will fit most buttonless and variable voltage pen vaporizer batteries with the common 510 thread. The 8″ cord allows you to position the device you are charging. We like these better than the ‘stub’ type chargers since they do not create a hazard by having your vape + charger sticking horizontally out of your computer.
Please keep in mind that some batteries require a different USB charger since they work at different power levels. In order to limit the risk of damage to your battery, choose the right charger. Using a charger with a lower Ma will result in a longer charge time but will not damage your battery. Using a charger with a higher Ma then recommended will likely damage your battery.