The Kind Pen- Variable Voltage 510 Thread Battery

Ultra-light variable voltage battery with fast heat-up time. Fits most 510 carts. Loved by more than 550 ecstatic reviewers:

Choose this if you’re after a:

• Slim battery fits most 510 carts & tanks
• 3 voltage options (2.4v, 2.8v, 3.2v)
• Preheat setting to handle thicker oils
• 180mAh capacity for extended use