Abstract: Furniture such as a cot, table, or chair is provided that uses shock-corded poles in combination with one or many torsion spring mechanisms to achieve a compact pack size. Alternatively, central hubs may be used in lieu of the spring mechanisms. The furniture maintains its usefulness by assembling to a size comparable with conventional full-sized furniture. One or many torsion springs associated with the furniture allow a user to easily achieve tension over desired elements of the furniture while reducing user exertion.

Abstract: A battery is provided comprising a power storage element, a battery housing, at least two electrical contacts, at least one first charging port, and at least one second charging port. The two electrical contacts and the first charging port are in electrical communication with the power storage element to allow discharge of the at least one power storage element. Similarly, the electrical contacts and the second charging port are in electrical communication with the power storage element to charge at least one power storage element.