Best Vaporizer Batteries.  (sold separately) 

These Pulsar Variable Voltage Pen Batteries feature 650, 900 and 1100 mAh standard voltage batteries in various sizes. These batteries feature a 15 second preheat function, 5-Click on/off function, included USB chargers, and 510 threading. Available colors include black & rainbow.  

Display includes (4) 650 mAh - Black, (4) 650 mAh - Rainbow, (4) 900 mAh - Black, (4) 900 mAh - Rainbow, (4) 1100 mAh - Black, (4) 1100 mAh - Rainbow.

Features: 

• 24 piece display

• Variable voltage vaporizer batteries

• 15 second preheat function

• 100s of puffs per charge

• Includes USB charger

• Available colors include Black & Rainbow

• Various assorted strengths

• Includes sturdy plastic display