  We present a novel solution describing four dimensional rotating regular
charged black hole in the low energy heterotic string theory. This present
solution is characterized by its mass, charged, as well as angular momentum.
Some aspect including event horizon, ergosphere, and the angular velocity are
discussed. It is shown that later, our expression for event horizon and
ergosphere cannot be obtained analytically. On the other hand, to ensure
whether our solution describe a nonsingular rotating charged black hole, we use
two type of scalar invariant; contracted Ricci tensor and Kretschmann scalar.
From our result, the inclusion of charge does not alter the regularity of a
black hole. We also proposed a natural prescription to have rotating charged
black hole solution with a minimal violation of weak energy conditions.
