- CCELL
290mAh M4B Pro Variable Voltage
The M4B Pro is a sleek, stainless steel 510 battery built for today’s cartridges. With three easy-to-switch voltage settings, button activation, and a fast-charging 290mAh core, it gives you total control.
The M4B Pro is a sleek, stainless steel 510 battery built for today’s cartridges. With three easy-to-switch voltage settings, button activation, and a fast-charging 290mAh core, it gives you total control.