Air Force nickel-hydrogen testing at NAVSURFWARCENDIV Crane

Testing for the Air Force Nickel-Hydrogen Cell Test Program began in 1986 at Crane Division, Naval Surface Warfare Center (NAVSURFWARCENDIV Crane). The purpose of the test was to demonstrate the performance of Ni-H/sub 2/ secondary cells in low Earth orbit conditions and develop a statistically significant database on Ni-H/sub 2/ batteries. The program has included random vibration, acceptance, characterization and life cycle testing. Two hundred and thirty seven Ni-H/sub 2/ individual pressure vessel cells, 18 common pressure vessel batteries, and one 22 cell single pressure vessel battery have been received for testing representing varying designs from four separate manufacturers. This report provides an update of the results of the testing since the beginning of the program.