Description
The concentrate oil cartridges are compatible with the Brass Knuckles 900mAh Adjustable Batteries. The 900mAh battery capacity, variable voltage, and preheat mode of the Brass Knuckles vape pen make it an excellent choice. It functions similarly to a standard vape pen battery, down to its single-button interface.
If you press the power button for 5 seconds, the battery will turn on or off; if you press it for 2 seconds, the preheat mode will be activated for 10 seconds; if you press it for 3 seconds, you’ll be able to adjust the voltage; the LED light’s color will change depending on the voltage you choose. The voltages are as follows: 2.4V (green), 3.2V (blue), and 4.0V (red).
jase (verified owner) –
Great battery. Best one I’ve had & I have had a lot!
Sharon Warren (verified owner) –
This battery is the best thing I have ever purchased I swear,,, defo worths my money
Dominic Conley (verified owner) –
I AM BACK HERE FOR ANOTHER COLOOOR, gonna order more more more and more
Andy Lowery (verified owner) –
best of the best, the quality is premium
Georgie Clements (verified owner) –
Dude I love this item! Got it for my friend and it works AWESOME! For sure gonna order from you guys again in the future…
Samia Dyer (verified owner) –
When you grab this battery man you can already feel the quality, you know what I mean? The way it’s shaped and designed is just like amazing! I’m totally ordering one for my bfright now, she’s gonna love it!
Lydia Arias (verified owner) –
I ordered 3 and using one for almost a month i am in love
Aran Norris (verified owner) –
bought 8 of this hehe, love them all
Louie Martinez (verified owner) –
Oh dude this thing is a hundred percent awesome! I got a second one ’cause my first BK battery is totally amazing. I knew would need more than one for real. You gotta trust this battery man it’s legit!
Sydney Hull (verified owner) –
Good battery and good quality