Kind 510 Thread Micro USB-charge variable voltage vape battery fit all 510 cartridges and has 350mAh battery capacity – perfect for around-the-clock use, even if you’re vaping on thicker oils!  Slim pocket VV battery for all 510 cartridges

• 10.5 mm diameter (sits flush with all your tanks)
• Variable voltage (2.4v, 2.8v, 3.2v)
• Preheat setting for thicker oils
• 350mAh battery capacity for all-day use