NOVELTY - The supply has a fuel supply connector such as connection element (14), for attaching the fuel supply to a fuel cell system, via a flexible connection element such as flexible tubular element that is made of flexible material. The connection element is configured to separate the fuel supply from the fuel cell system in a predetermined manner if the fuel supply and/or the fuel cell system is exposed to a separation load. Fuel-absorbing elements (23a- 23d) such as duckbill valve are provided for stopping the flow of fuel when a breakable portion of the fuel supply breaks.    USE - Used for storing fuels e.g. potassium hydroxide electrolyte, ethanol, methanol, water, methanol/water mixture, methanol/water mixtures of varying concentrations or pure methanol, hydrogen peroxide, sulfuric acid or sodium borohydride, of a fuel cell such as direct methanol fuel cell (DMFC), solid oxide fuel cell, enzyme fuel cell, metal fuel cell, alkali fuel cell, reformat fuel cell, polymer electrolyte fuel cell, phosphoric acid fuel cell, molten carbonate fuel cell, where fuel cell is used for supplying power to consumer electronic device such as mobile or cell phones, calculator, personal digital assistant, laptop computer, notebook computer, and power tool.    ADVANTAGE - The connection element is configured to automatically separate the fuel supply from the fuel cell system in a predetermined manner if the fuel supply and/or the fuel cell system is exposed to the separation load, thus preventing the transfer of fuel between fuel supply and fuel cell system, and hence minimizing the leakage of fuel, and avoiding the damage to the sensitive electronics. The flexible connection element is made of any flexible material, thus preventing the fuel supply connector from breaking in case of the separation load.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a fuel cell system comprising a fuel cell and a fuel supply.    DESCRIPTION OF DRAWING(S) - The drawing shows a cross-sectional view of a connector.    Connection element (14)    Thin-walled section (20, 22)    Fuel-absorbing elements (23a- 23d)