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85Y5898 ✓ Verified by PartsTable
IBM · BATTERY · LITHIUM
WHAT YOU NEED TO KNOW
Lithium batteries are restricted for air travel and may require a dangerous goods certificate with additional carrier fees. Ground shipping adds transit time — plan accordingly. Always check the date code, batteries degrade over time. Buy in bulk when possible, these are consumables. Key checks: Buy in bulk — consumables.
RESTRICTED for air — DG certificate required
PRODUCT OVERVIEW
IBM 85Y5898 Storwize V7000 Battery backup Manufacturer: IBM ItemCondition: REF Model: Alternative Part Numbers: 00AR044,00AR301,85Y5898,85Y6046,85Y6161

The IBM 85Y5898 is a Battery-Backed Write Cache pack, designed for enterprise RAID controllers in enterprise servers. It provides backup power to the BBWC module during unexpected power loss, ensuring cached write data is safely committed to flash memory. This is a high-volume replacement part in TPM market as enterprise servers remain widely deployed.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6130-01-681-4255, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
BATTERY→ LITHIUM→ 85Y5898
NSN: 6130-01-681-4255
FSC: 6130
CAGE: 8W884 — INTERNATIONAL BUSINESS MACHINES CORPORATION (USA)
SPECIFICATIONS
Part Number85Y5898
ManufacturerIBM
NSN6130-01-681-4255
COMPONENT DIAGRAM
CAP 72V + - CAP 72V BRACKET TO CTRL CABLE: — ~76 mm CACHE BACKUP | Supercapacitor | Cable: — Connects to RAID controller | | Controller: See controller spec SCHEMATIC: + - 2S2P SUPERCAP PACK TITLE CACHE BATT PN 85Y5898 MFR IBM IBM V7000 Battery Backup
KEY FEATURES
•
Battery-Backed Write Cache Module
•
Rechargeable Battery Technology
Provides cache backup power for 48+ hours after power loss
•
Hot-Plug Capable
TYPICAL APPLICATIONS
  • RAID cache protection during power loss events
  • Write-back cache enablement for storage controllers
  • Enterprise server data integrity assurance
  • Hot-swap battery/capacitor replacement in production
TECHNICAL CHARACTERISTICS (FLIS)
PART NAME ASSIGNED BY CONTROLLING AGENCYSTORWIZE BATTERY BACKUP UNIT
END ITEM IDENTIFICATIONLAUNCH AND TEST RANGE SYSTEM;NAS SERVER REPLACEMENT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
00AR044Compatible
IBM Storwize V7000 G1 Node Battery for the Control Enclosure - FRU
compatible
00AR300Compatible
IBM Storwize V7000 G1 Node Battery for the Control Enclosure - P/N
compatible
00AR301Compatible
IBM Storwize V7000 G1 Node Battery for the Control Enclosure - FRU
compatible
0947340-08Compatible
IBM Storwize V7000 G1 Node Battery for the Control Enclosure - P/N
compatible
2076-8001Compatible
IBM Storwize V7000 G1 Controller Cache Battery for Models 2076-112/124 - Option
compatible
2076-8002Compatible
IBM Storwize V7000 G1 Controller Cache Battery for Models 2076-312/324 - Option
compatible
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99DG Class 9 — LithiumRestricted Air Freight
THIS PART SUBSTITUTES FOR 11
AP-BAT01-022-01SUBSTITUTE
IBM Storwize V7000 G1 Node Battery for the Control Enclosure - FRU
IBM
NEX-900826SUBSTITUTE
IBM Storwize V7000 G1 Node Battery for the Control Enclosure - FRU
IBM
00AR044SUBSTITUTE
IBM Storwize V7000 G1 Node Battery for the Control Enclosure - FRU
IBM
00AR300SUBSTITUTE
IBM Storwize V7000 G1 Node Battery for the Control Enclosure - FRU
IBM
00AR301SUBSTITUTE
IBM Storwize V7000 G1 Node Battery for the Control Enclosure - FRU
IBM
0947340-08SUBSTITUTE
IBM Storwize V7000 G1 Node Battery for the Control Enclosure - FRU
IBM
2076-8001SUBSTITUTE
IBM Storwize V7000 G1 Node Battery for the Control Enclosure - FRU
IBM
2076-8002SUBSTITUTE
IBM Storwize V7000 G1 Node Battery for the Control Enclosure - FRU
IBM
85Y6127SUBSTITUTE
IBM Storwize V7000 G1 Node Battery for the Control Enclosure - FRU
IBM
85Y6046SUBSTITUTE
IBM Storwize V7000 G1 Node Battery for the Control Enclosure - FRU
IBM
85Y6161SUBSTITUTE
IBM Storwize V7000 G1 Node Battery for the Control Enclosure - FRU
IBM
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FREQUENTLY ASKED QUESTIONS
What is 85Y5898?
85Y5898 is a IBM V7000 Battery Backup manufactured by IBM. It is classified as a BATTERY (LITHIUM).
What parts can replace 85Y5898?
There are 11 known substitutes for 85Y5898: 00AR044, 00AR300, 00AR301 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 85Y5898?
85Y5898 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6130-01-681-4255. This indicates validated use in U.S. government and defense supply chains.
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Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
Last verified: July 2026