Liquid containers and apparatus for use with power producing devices

A fuel dispensing system, comprising:

• a fuel reservoir, comprising:
• a container, having an opening;
• a liquid fuel, in the container;
• a needle-pierceable septum, disposed across the opening of the container;
• and
• a locking surface, disposed on an exterior surface of the container;
• a dispensing appliance, comprising:
• an engagement mechanism, having at least two needles;
• a protecting plate, having a raised position and a depressed position, wherein the needles are concealed when the protecting plate is in a raised position and the needles are exposed when the protecting plate is in a depressed position;
• and
• a locking mechanism;
• wherein the protecting plate is depressed,
• the needles are engaging the fuel reservoir,
• the locking surface is configured to engage the locking mechanism, and
• the protecting plate is in the depressed position and the needles are engaging the fuel reservoir when the locking mechanism is in the locked position, and the protecting plate is in the raised position when the locking mechanism is in the unlocked position.