  The (over)completeness of even and odd nonlinear charge coherent states is
proved and their generation explored. They are demonstrated to be generalized
entangled nonlinear coherent states. A $D$-algebra realization of the
SU$_f$(1,1) generators is given in terms of them. They are shown to exhibit
SU$_f$(1,1) squeezing and two-mode $f$-antibunching for some particular types
of $f$-nonlinearity, but neither one-mode nor two-mode $f$-squeezing.
