  We present a measurement of the charge asymmetry $\delta_L$ in the mode $K_L
\to \pi^{\pm}e^{\mp}\nu$ based on 298 million analyzed decays. We measure a
value of $\delta_L = (3322 \pm 58(stat) \pm 47(sys))\cdot 10^{-6}$, in good
agreement with previous measurements and 2.4 times more precise than the
current best published result. The result is used to place more stringent
limits on CPT and $\Delta S = \Delta Q$ violation in the neutral kaon system.
