Question of the Week: What do I do with old batteries? After the festive season, many of us have extra waste, including batteries from toys and gadgets. Never put batteries (including 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 He Made a Battery Pack Using Disposable Vapes to Power His Electric Car (WATCH) Engineer powers his entire home using 500 discarded vapes How to repurpose disposable vape batteries for DIY projects?