[dotancohen]

You're right! My brief skim of the article overlooked that very important detail.

Thank you.

> Perhaps next you'll tell me the "battery" is actually just the anode, cathode and electrolyte?

No, next I'll tell you that this isn't Reddit and you don't have to be a dick to "win an argument on the internet". On HN you can simply point out the facts, like you did above.