Abstract: An improved pressurized sprayer is provided. The pressurized sprayer includes a support frame, a modular power center, and a spray wand. The support frame defines an internal reservoir, and the modular power center includes a pump, a controller, and a battery, the pump being fluidly coupled to the internal reservoir via a quick-release connector. The spray wand is fluidly coupled to the pump via a discharge hose and includes an inverted pistol grip having a push-button trigger and a thumbwheel potentiometer for controlling flow-rate or pressure. The readily accessible nature of these controls allows the operator to meet the needs of a variety of applications, with all controls at a natural forefinger and thumb rest point. The heavier elements of the spray wand remain below the forearm and hand of the operator. This configuration enhances the ergonomic feel of the spray wand by maintaining a natural upright trigger position.