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We classify all fundamental electrically charged thin shells in generalrelativity, i.e., static spherically symmetric perfect fluid thin shells with aMinkowski spacetime interior and a Reissner-Nordstr\"om spacetime exterior,characterized by the spacetime mass and electric charge. The fundamental shellcan exist in three states, nonextremal, extremal, and overcharged. Thenonextremal state allows the shell to be located such that its radius can beoutside its own gravitational radius, or can be inside its own Cauchy radius.The extremal state allows the shell to be located such that its radius can beoutside its own gravitational radius, or can be inside it. The overchargedstate allows the shell to be located anywhere. There is a further division, onehas to specify the orientation of the shell, i.e., whether the normal out ofthe shell points toward increasing or decreasing radii. There is still asubdivision in the extremal state when the shell is at the gravitationalradius, in that the shell can approach it from above or from below. The shellis assumed to be composed of an electrically charged perfect fluid, and theenergy conditions are tested. Carter-Penrose diagrams are drawn for the shellspacetimes. There are fourteen cases in the classification of the fundamentalshells, namely, nonextremal star shells, nonextremal tension shell black holes,nonextremal tension shell regular and nonregular black holes, nonextremalcompact shell naked singularities, Majumdar-Papapetrou star shells, extremaltension shell singularities, extremal tension shell regular and nonregularblack holes, Majumdar-Papapetrou compact shell naked singularities,Majumdar-Papapetrou shell quasiblack holes, extremal null shell quasinonblackholes, extremal null shell singularities, Majumdar-Papapetrou null shellsingularities, overcharged star shells, and overcharged compact shell nakedsingularities.

physical review. d/physical review. d.

All fundamental electrically charged thin shells in general relativity:  From star shells to tension shell black holes and regular black holes and  beyond