  We study the nonlinear gravitational collapse of a charged massless
scalar-field. We confirm the existence of oscillatory inverse power-law tails
along future timelike infinity, future null infinity and along the future
outer-horizon. The nonlinear dumping exponents are in excellent agreement with
the analytically predicted ones. Our results prove the analytic conjecture
according to which a charged hair decays slower than a neutral one and also
suggest the occurrence of mass-inflation along the Cauchy horizon of a
dynamically formed charged black-hole.
