Powerful, reliable, and easy to use — the Brass Knuckles 900mAh Battery is built for concentrate and cartridge-style vaping. Designed with a high-capacity 900mAh battery, variable voltage control, and a convenient preheat function, this premium vape pen battery delivers consistent performance for everyday cartridge users.
Compatible with all standard 510-thread cartridges, it’s a dependable choice for smooth and customizable sessions.
🔋 High-Capacity 900mAh Battery
With a robust 900mAh capacity, this battery offers longer usage between charges compared to many standard pen batteries — making it ideal for frequent cartridge users.
⚡ Variable Voltage Settings
Customize your experience with three voltage options:
Green – 2.4V (Smooth, flavor-focused hits)
Blue – 3.2V (Balanced vapor production)
Red – 4.0V (Stronger, more intense draws)
Switch voltage by pressing the button 3 times quickly. The LED indicator changes color to reflect your selected setting.
🔥 10-Second Preheat Mode (2.0V)
Activate preheat by pressing the button 2 times quickly. This warms thicker oils at a gentle 2.0V for 10 seconds, helping:
Prevent clogging
Improve cartridge longevity
Ensure smoother, consistent draws
🔘 Simple Single-Button Operation
5 clicks – Power On/Off
3 clicks – Change Voltage
2 clicks – Activate Preheat
Hold button while inhaling to vape
Designed for intuitive, no-complication use.
🔄 Universal 510 Compatibility
The 510-thread connection ensures compatibility with most concentrate oil cartridges on the market. Simply screw in your cartridge, select your voltage, and you’re ready to go.
To charge, attach the USB charger and power up conveniently.
✨ Premium Finish Options
Available in three sleek finishes:
Wood
Silver
Gold
If you’re looking for a high-capacity 510 battery with variable voltage and preheat mode, the Brass Knuckles 900mAh Battery delivers dependable power and customizable performance in a classic vape pen design.
The statements made regarding these products have not been evaluated by the Food and Drug Administration.. The efficacy of these products has not been confirmed by FDA-approved research. These products are not intended to diagnose, treat, cure, or prevent any disease.
Delta-8: This product is not available for shipment to the following states: Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Kentucky, Idaho, Iowa, Michigan, Mississippi, Montana, New York, Nevada, North Dakota, Oregon, Rhode Island, Utah, Vermont, Washington
THC-A: This product is not available for shipment to the following states: Arkansas, Hawaii, Idaho, Kansas, Louisiana, Oklahoma, Oregon, Rhode Island, Utah, Vermont
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