Odd, Jeremie and others in “Unfinished Business”

That's it? Then we just have to change the battery.

A supercomputer is not the same as a Game Boy, Odd. You can't just pick up a bar of uranium at the corner store.

Ulrich

But isn't there some kind of emergency backup battery?

No. I checked.

X.A.N.A. is dying.

And so is Aelita. And all on account of that miserable virus.