Founded in 1992, Patco Electronics (PATCO), based in Clearwater, Florida, and a subsidiary of Technology Research Corporation (TRC), manufactures leading edge rechargeable Lithium ION (Li-Ion), Nickel Cadmium (NiCd) and Nickel Metal Hydride (NiMH) batteries and custom engineered solutions. In addition, PATCO manufactures battery management tools and charging systems spanning the chemistries employed in secondary batteries.