  When an electrically charged black hole is perturbed its inner horizon
becomes a singularity, often referred to as the Poisson-Israel mass inflation
singularity. Ori constructed a model of this phenomenon for asymptotically flat
black holes, in which the metric can be determined explicitly in the mass
inflation region. In this paper we implement the Ori model for charged AdS
black holes. We find that the mass function inflates faster than the flat space
case as the inner horizon is approached. Nevertheless, the mass inflation
singularity is still a weak singularity: although spacetime curvature becomes
infinite, tidal distortions remain finite on physical objects attempting to
cross it.
