The Nickel Metal Hydride Battery system has emerged as the battery of choice for portable computers, cell phones and other small electronic applications. It also is a leading candidate to serve as the energy storage source for electric and hybrid electric vehicles. The Nickel Metal Hydride battery eliminates the use of highly toxic chemicals which is a major consideration for environmental issues. The battery also exhibits higher energy density than Lead-Acid and Nickel-Cadmium batteries along with excellent power capabilities. These features make this battery a viable candidate for aircraft applications and that is the subject of this presentation.