  We study charged perturbations of the thermofield double state dual to a
charged AdS black hole. We model the perturbation by a massless charged shell
in the bulk. Unlike the neutral case, all such shells bounce at a definite
radius, which can be behind the horizon. We show that the standard "shock wave"
calculation of a scrambling time indicates that adding charge increases the
scrambling time. We then give two arguments using the bounce that suggest that
scrambling does not actually take longer when charge is added, but instead its
onset is delayed. We also construct a boundary four point function which
detects whether the shell bounces inside the black hole.
