510 USB Charger features 510-threading compatible with most vaporizers. A sturdy plastic build ensures long-lasting dependability. The compact size is travel-friendly and easy to conceal. Charge up your vape from anywhere with a USB power outlet or use a wall adapter at an AC outlet. Using the universal USB charger is simple. Just screw the 510-threaded connection onto your vaporizer battery and plug the USB connection into a power source.