Analysis of information sources in references of the Wikipedia article "ZKZM-500" in English language version.
Realistically, the battery alone would have to weigh several hundred pounds to provide the energy needed to fire a hot laser beam a kilometer.
To make this work, you need a serious battery pack, some even more serious capacitors, optics that can take all this without turning back into sand at these energy densities, and rugged enough that you can treat this like military hardware," says Broughton. "This is a 'best case scenario operation only' weapon if there ever was one.
There's just no way that a laser powered by a lithium-ion battery that a person could carry would be capable of producing the kind of heat described at point blank range, let alone at 800 meters.
