  The bipolar non-isentropic compressible Euler-Maxwell system is investigated
in $R^3$ in the present paper, and the $L^q$ time decay rate for the global
smooth solution is established. It is shown that the total densities, total
temperatures and magnetic field of two carriers converge to the equilibrium
states at the same rate $(1+t)^{-3/2+3q/2}$ in $L^q$ norm. But, both the
difference of densities and the difference of temperatures of two carriers
decay at the rate $(1+t)^{-2-\frac{1}{q}}$, and the velocity and electric field
decay at the rate $(1+t)^{-3/2+\frac{1}{2q}}$. This phenomenon on the charge
transport shows the essential difference between the non-isentropic unipolar
Euler-Maxwell and the bipolar isentropic Euler-Maxwell system.
