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NASA NTRS · 20070034154

Hubble Space Telescope Battery Capacity Update

Hollandsworth, Roger·Armantrout, Jon·Rao, Gopalakrishna M.
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Abstract

Orbital battery performance for the Hubble Space Telescope is discussed and battery life is predicted which supports decision to replace orbital batteries by 2009-2010 timeframe. Ground characterization testing of cells from the replacement battery build is discussed, with comparison of data from battery capacity characterization with cell studies of Cycle Life and 60% Stress Test at the Naval Weapons Surface Center (NWSC)-Crane, and cell Cycle Life testing at the Marshal Space Flight Center (MSFC). The contents of this presentation includes an update to the performance of the on-orbit batteries, as well as a discussion of the HST Service Mission 4 (SM4) batteries manufactured in 1996 and activated in 2000, and a second set of SM4 backup replacement batteries which began manufacture Jan 11, 2007, with delivery scheduled for July 2008.

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Hollandsworth, Roger, Armantrout, Jon, Rao, Gopalakrishna M.. 2007-04-23. Hubble Space Telescope Battery Capacity Update. https://ntrs.nasa.gov/citations/20070034154

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