Where can I find an Apple tv remote battery?

Edit update: chatted with Amazon customer support and they gave me three to choose from. I bought all three for $22. Will get in the first week of August. Will update Fluther then.

Thanks for the update, I was really wondering.

I suppose making the remote run on AA, like pretty much every other remote controller on the Earth, would have been too simple and not “revolutionary” enough for Apple?

@Darth_Algar
That is why they marketed it that way to get more Apple sales.

Update: Battery works. Apple TV hooked up.