Randy's 650 mAh Twist Slim Pen Battery

• 650 mAh slim battery. 
• Twist to adjust voltage between 2.8 V - 4.0 V. 
• 510 threading for your favorite accessories. 
• Includes USB charger. 

Finally, a reliable vaporizer battery with the freedom to select the voltage you want! Randy's, based in Ohio, U.S.A., brings you this 510 thread pen battery for all of your vaping needs. Simply click the single button 5 times to turn it on, and give the bottom a twist to select your ideal voltage for your material. With a voltage range from 2.8 to 4.0 volts, you can easily get the most out of your vaping material without having to fall into strict voltages of most other variable voltage batteries. If you want 3.4 volts for one thing but 3.5 for the next, go ahead and give this battery a twist! The freedom is yours!

Each battery comes with a 510-to-USB charger for the convenience to charge wherever you go.

Pre-Heat Function

The battery has only one button on its face, but can be clicked multiple times for various affects: five clicks locks or unlocks the device for use; and two clicks activate a 15-second preheat function to clean your cartridge from residue and bring it up to your desired temperature for your materials.