The ABC is a 100W portable fuel cell system that is easy to carry and use anywhere, even underground. The ABC is produces virtually no toxic emissions or noise. It is available in two different AC voltages; either 110v or 230v, and each variant has both a 12vdc output and a USB charging port. This system can be used to power small electrical devices such as iPods or mobile phones or to simply recharge any battery. It also features a frost sensor which enables use in sub-zero conditions. The ABC is powered by hydrogen gas which can be supplied in two ways: either using a refillable canister mounted within the product or from a normal hydrogen cylinder, available from compressed gas suppliers, which can be connected externally. The ABC has a serial port which can be used for system