IBM 00JA844 server / storage / networking hardware Server Hardware / Parts

The IBM 00JA844 is a genuine IBM Z field-replaceable part associated with the Internal Battery Feature (IBF), the lithium-ion battery backup option fitted to IBM Z mainframes to preserve processor state and allow an orderly shutdown during a loss of all incoming power feeds. IBM documents the IBF as an optional, regulated dangerous-goods component available on several Z generations; the ‘-ED’ suffix in this part’s own designation most likely identifies a specific board or driver variant within that battery-backup power path, though no independent listing was found confirming which one. Tech-Star supplies this as a genuine pull from decommissioned IBM Z equipment. Buyers should confirm exact compatibility against their specific IBM Z frame and IBF configuration before ordering.