Battery operated dispenser

A dispenser, comprising:

• a housing;
• a valve assembly;
• a hose connected to the valve assembly;
• a battery compartment;
• a trigger in communication with the valve assembly;
• a motor/pump assembly;
• a fluid flow path between the valve assembly and the motor/pump assembly;
• a nozzle assembly;
• a pump extension tube connected to the motor/pump assembly at a first end and in fluid communication with the nozzle assembly at a second end;
• an extension barrel slidably retained within said housing, wherein in a first configuration the extension barrel is fully disposed within the housing and in a second configuration the extension barrel is at least partially disposed outside of the housing;
• and
• a slider in communication with the extension barrel,
• wherein the slider is fixed relative to the extension barrel and at least partially slidably retained in the housing in the first and second configurations,
• wherein the housing comprises a shell which encloses the valve assembly, motor/pump assembly, and pump extension tube;
• and
• wherein an extension barrel slider adapter is enclosed by the shell and connected to the slider and the extension barrel, wherein movement of the slider moves the extension barrel from the first configuration to the second configuration.