Max Pro Variable Voltage 510 Battery
The Max Pro battery pen features a powerful 380mAh built-in battery, variable voltage, and preheating function. Unlike a buttonless vape battery, for example, CCELL M3 battery, the button battery will provide a stronger vape hit. The 15s preheating makes it compatible with any viscosity vape cartridge. Another feature of this vape pen battery is the Micro-USB charging port.