Ship capacitor is a type of ship component. It stores energy for use by the ships weapons. With each shot, energy is transfered from the capacitor into the weapon, draining the capacitor by the weapons "energy per shot". A capacitor has a total energy and also a recharge rate. Powering the capacitor requires energy from the ships reactor (the "reactor energy drain"). Large (greater mass) capacitors usually can store more energy and can also recharge faster. Capacitor energy and capacitor recharge are both affected by the droid routine "capacitor overload". High end space content necessitates capacitor overloads, and cap overload 4 is de rigeur for space pvp.