An electrostatic sprayer device, comprising: a housing; an electrostatic module inside the housing; a reservoir having a cavity adapted to contain a fluid; and at least one nozzle fluidly connected to the reservoir, wherein the nozzles are configured to emit fluid in a direction along a flow pathway, characterized by: a pump configured to propel fluid from the reservoir to the at least one nozzle; a direct current battery configured to power at least one of the electrostatic module and the pump; and an electrode assembly configured to electrostatically charge the fluid, wherein the electrode assembly is at least one of: a first electrode assembly formed of a plurality of electrodes electrically attached to the electrostatic module, wherein each electrode is configured to emit ions along an axis that is parallel to the flow pathway of the fluid emitted from the nozzle such that the plurality of electrodes form a static electrical field through which the fluid passes; and a second electrode assembly formed of a tube through which fluid may flow from the reservoir toward the at least one nozzle, wherein at least a conductive portion of the tube is electrically attached to the electrostatic module, and wherein the conductive portion of the tube is configured to physically contact the fluid as it flows through the tube and apply an electrical charge to the fluid prior to the fluid passing through the nozzle. a housing; an electrostatic module inside the housing; a reservoir having a cavity adapted to contain a fluid; and at least one nozzle fluidly connected to the reservoir, wherein the nozzles are configured to emit fluid in a direction along a flow pathway, characterized by: a pump configured to propel fluid from the reservoir to the at least one nozzle; a direct current battery configured to power at least one of the electrostatic module and the pump; and an electrode assembly configured to electrostatically charge the fluid, wherein the electrode assembly is at least one of: a first electrode assembly formed of a plurality of electrodes electrically attached to the electrostatic module, wherein each electrode is configured to emit ions along an axis that is parallel to the flow pathway of the fluid emitted from the nozzle such that the plurality of electrodes form a static electrical field through which the fluid passes; and a second electrode assembly formed of a tube through which fluid may flow from the reservoir toward the at least one nozzle, wherein at least a conductive portion of the tube is electrically attached to the electrostatic module, and wherein the conductive portion of the tube is configured to physically contact the fluid as it flows through the tube and apply an electrical charge to the fluid prior to the fluid passing through the nozzle. a pump configured to propel fluid from the reservoir to the at least one nozzle; a direct current battery configured to power at least one of the electrostatic module and the pump; and an electrode assembly configured to electrostatically charge the fluid, wherein the electrode assembly is at least one of: a first electrode assembly formed of a plurality of electrodes electrically attached to the electrostatic module, wherein each electrode is configured to emit ions along an axis that is parallel to the flow pathway of the fluid emitted from the nozzle such that the plurality of electrodes form a static electrical field through which the fluid passes; and a second electrode assembly formed of a tube through which fluid may flow from the reservoir toward the at least one nozzle, wherein at least a conductive portion of the tube is electrically attached to the electrostatic module, and wherein the conductive portion of the tube is configured to physically contact the fluid as it flows through the tube and apply an electrical charge to the fluid prior to the fluid passing through the nozzle. a first electrode assembly formed of a plurality of electrodes electrically attached to the electrostatic module, wherein each electrode is configured to emit ions along an axis that is parallel to the flow pathway of the fluid emitted from the nozzle such that the plurality of electrodes form a static electrical field through which the fluid passes; and a second electrode assembly formed of a tube through which fluid may flow from the reservoir toward the at least one nozzle, wherein at least a conductive portion of the tube is electrically attached to the electrostatic module, and wherein the conductive portion of the tube is configured to physically contact the fluid as it flows through the tube and apply an electrical charge to the fluid prior to the fluid passing through the nozzle.