Disposable vape, just three components but what it bugs me how does it know when it's empty. Led flashes when no juice is left but how? What makes led flash? What's really inside vapes? We pulled them apart to find out Inside every disposable vape is precious metal tossed away in tonnes The Guardian Weekly newspaper Read this story on Magzter.com How does the disposable vape ban work, and how harmful is vaping? The insides of one of those microphone looking things inside a disposable vape. It's a pressure sensor, and the chip is called S085. According to this link, it does have charging capability,