Brass Knuckles 900mAh Adjustable Battery – 510 Thread

Brass Knuckles battery suitable for thick oil CBD cartridges.

Voltage output range 3.2v – 4.1v. Generally best for distillate style cartridges.

Not suited to cartridges requiring very low voltages below 3v.

Variable voltage, pre-heat option and USB screw charger included

Brass Knuckles pen battery battery features & specifications:

• 3 Voltage settings (Blue: 3.2V, Blue: 3.7V, Red: 4.1v) – just click 3 times to change the mode setting
• Preheat mode – click 2 times to activate this mode
• 5 click to turn on and off
• Capacity: 900mAh
• Diameter: 12mm
• Length: 7mm
• 510 connection