The sonic screwdriver is known to do many things (well, as long as it's not to wood). But at the beginning of The Age Of Steel, the Doctor destroys a good few Cybermen by blasting something out of the screwdriver. Any idea how to justify that? Any other examples of the screwdriver having a bit more power than expected?

1 Answer 1


It's not the Sonic Screwdriver. A minute later in the episode, Rickey asks what that thing was. That thing being ... nothing. It's tiny. One of those insignificant little power cells that no one ever bothers about, and it's clinging onto life, with one little ounce of reality tucked away inside.

It's a Tardis Power Cell that the Doctor and Mickey find half way through the 1st part of the Two-Part Cyberman series, Rise of the Cybermen. After the Doctor finds it, he charges it with some of his life force (I just gave away ten years of my life. Worth every second.).

  • Oh I didn't get that he used the power cell. But wouldn't that use up some of the energy that they were patiently waiting for? Commented Aug 22, 2014 at 5:40
  • 1
    @EtiennePellegrini it's a power cell, it can be charged, then discharge, then charge itself again. Only needed 4 hours the second time around.
    – user16696
    Commented Aug 22, 2014 at 5:59
  • @cde Just hope there's no memory effect. :)
    – Mario
    Commented Aug 22, 2014 at 8:00

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.