  The deflection angle $\Delta\phi$ of charged signals in general charged
spacetime in the strong field limit is analyzed in this work using a
perturbative method generalized from the neutral signal case. The solved
$\Delta\phi$ naturally contains the finite distance effect and takes a
quasi-power series form with a logarithmic divergence at the leading order. The
coefficients of the series contain both the gravitational and electric
contributions. Using the Reissner-Nordstr\"{o}m spacetime as an example, we
found that an electric repulsion (or attraction) tends to decrease (or
increase) the critical impact parameter $b_c$. If the repulsion is strong
enough, then $b_c$ can shrink to zero and the critical particle sphere $r_{0c}$
will disappear. These results are applied to the gravitational lensing of
charge signal, from which we solved the image positions, their magnifications
and time delays. It is found that in general, the electric repulsion (or
attraction) will decrease (or increase) the image apparent angles, the black
hole shadow size as well as their magnifications but increase (or decrease) the
time delay.
