  We state and explain the total rate at which a charged non-rotating black
hole emits charged particles, taking into account both Hawking radiation and
Schwinger pair production simultaneously. We give concrete formulae for this
emission rate in certain limits, with the greatest simplification occurring
when the black hole is much larger than the particle's Compton wavelength. We
provide an interpretation of the result in terms of a tunnelling process, both
through the black hole horizon and the surrounding electric field, and comment
on how suppression due to tunnelling modifies the emission spectrum.
