Patent ID: 8890468

Claim:
A light-weight portable power supply for a plurality of different types of power tools, said light-weight portable power supply consisting of: a battery-carrying pouch for carrying a removable power source, said removable power source being one of a single rechargeable battery, two rechargeable batteries connected in parallel, or a fuel cell; said battery-carrying pouch containing no battery charger circuitry; a plurality of adapters designed to interface with an existing battery interface of said plurality of different types of power tools; each of said plurality of adapters being small and light-weight, and each consisting of a dc connector on one side, and terminal contacts on another side for through-putting a dc power to the existing interface of said plurality of different types of power tools, each of said plurality of adapters designed to interface with one type of power tool from among the plurality of different types of power tools, each of said plurality of adapters containing no electronics; and a short, coiled cable with a dc plug that connects the battery-carrying pouch to said dc connector of one of said plurality of adapters, for supplying said dc power from said battery-carrying pouch to one of said different types of power tools when in use.