A spatial charge is an projectile weapon fired from a starship and designed to explode at a certain distance from the target.
In the 22nd century, the MACOs employed spatial charges against planet-based installations, in which the charges' effects can be focused with blast suppressors placed on the surface. Major Hayes wanted to use two spatial charges to destroy a kemocite mining facility on a Xindi-Arboreal colony, though he was overruled by Captain Jonathan Archer. (ENT: "The Shipment")
In the Delta Quadrant, Malon freighters were armed with spatial charges. (VGR: "Night")