Cleaning device having an energy store

A cleaning device for cleaning items to be cleaned, comprising:

• a fluid device for applying a cleaning fluid to the items to be cleaned;
• a cleaning chamber in which the cleaning fluid is applied to the items to be cleaned;
• an electrical load;
• an electrical connection for supplying electrical energy to the cleaning device;
• and
• an energy store;
• wherein the cleaning device is operable to:
• (a) receive electrical energy via the electrical connection and to temporarily store said electrical energy in the energy store;
• (b) selectively supply electrical energy from the energy store to the electrical load and to selectively directly supply electrical energy received via the electrical connection to the electrical load;
• and
• (c) simultaneously (i) supply electrical energy from the energy store to the electrical load and (ii) directly supply electrical energy which is received via the electrical connection to the electrical load;
• and
• a controller configured to monitor electrical power received via the electrical connection and selectively supply electrical energy from the energy store to the electrical load to thereby prevent, under all operating conditions, the electrical power received via the electrical connection from exceeding a fixed specified maximum power.