Repurposing Disposable Vape Batteries: The Why, The How, and the Vape Synth How to reuse vape batteries safely and efficiently? Reusing disposable vape batteries : r batteries Reuse vape battery and lights : r diyelectronics This man up cycled 500 vape batteries into a powerwall for his home. When a single use vape is discarded, it's often only because it has run out of liquid, not because the battery I've been salvaging these disposable vapes for the 3.7v 500mAh lithium batteries inside. They can be used to power small electronic projects with the appropriate charging circuit and voltage converter. : r diyelectronics