No, a portable dishwasher cannot be used without being plugged into an electrical outlet. Like any other electrical appliance, a portable dishwasher requires a power source to function properly. The electrical outlet supplies the necessary electricity to power the dishwasher's motor, heating elements, and control panel.
A portable dishwasher is designed to be movable and can be connected to a standard electrical outlet in your kitchen or wherever it is being used. It typically comes with a power cord that needs to be plugged into a wall outlet to operate the dishwasher.
If you don't have access to a nearby electrical outlet, you won't be able to use the portable dishwasher unless you use an extension cord to reach an appropriate outlet. However, it's essential to use an extension cord that is suitable for the dishwasher's power requirements and follows safety guidelines to avoid potential hazards.
In summary, to operate a portable dishwasher, you must have access to a functioning electrical outlet to provide the necessary power.