LifeHack: Know the difference between batteries and capacitors

I’m not the sort of person to read LifeHacker, since it’s of relative use for myself at best, most of the time, but I just stumbled upon this clickbait:

Ahem.. I’m possibly late to the party, but: Capacitors are not batteries.

Replacing capacitors with batteries is not going to end well, even if you try to align the numbers, er.. somehow. It’d certainly make the package smaller, especially when you throw things away after they go bang.