A disposable vape device comes ready to vape and is thrown away once it runs out of charge or e-liquid. ... A disposable, however, is different. Disposables are designed to be used and thrown away once the e-liquid has run dry. They don't need to be refilled and they can't be charged. single use eCigarettes are the most convenient ecigs to implement nicotine salts and CBD , which enable higher nicotine concentrations while delivering an exceptionally smooth draw. No Pods, No Leaking, No Charging.