An internal 500mAh battery for sustained vaping powers the Vapengin vape. The built-in battery has a voltage output of 3.2V to 3.4V, delivering best Handle to the heating coil. When the 500mAh capability is lessen than most rechargeable vape pens, it is rather respectable to get a disposable product. https://devinbujvi.isblog.net/how-much-you-need-to-expect-you-ll-pay-for-a-good-gv-lit-dry-herb-vaporizer-43102495