PartsTable
Technical Data Sheet
F8TTW ✓ Verified by PartsTable
DELL · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Very common replacement part Capacitors degrade slower than batteries but still lose capacity over time
CABLE LENGTH IS CRITICAL: 660093-001 = 36" (2U+), 654873-003 = 24" (1U)
PRODUCT OVERVIEW

The Dell F8TTW is a Battery-Backed Write Cache pack, designed for Dell PERC controllers in PowerEdge 12th and 13th generation 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 PowerEdge 12th and 13th generation servers remain widely deployed.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6140-01-582-3466, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
MRO MRO_GENERAL F8TTW
NSN: 6140-01-582-3466
FSC: 6140
CAGE: 3DMD3 — DELL MARKETING L.P. (USA)
SPECIFICATIONS
TypeBattery
Product colourGrey
Battery capacity85 Wh
Quantity per pack1 pc(s)
Number of battery cells9
Number of batteries included1 pc(s)
NSN6140-01-582-3466
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 F8TTW MFR DELL Dell 90Whr 9-Cell Lithium-Ion Primary
KEY FEATURES
Battery-Backed Write Cache Module
Rechargeable Battery Technology
Provides cache backup power for 48+ hours after power loss
Hot-Plug Capable
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONCOMPUTER , LAPTOP LATITUDE E6500 T9600
SPECIAL FEATURES9 CELL LITHIUMION
ENVIRONMENTAL ATTRIBUTE CODENON-LEAD ALTERNATIVE PRODUCTS AND RECHARGEABLE BATTERIES - CONSUMER AND VEHICLE PRODUCTS - NON-MERCURY CONTAINING PRODUCTS
PART NAME ASSIGNED BY CONTROLLING AGENCYINAVY BATTERY,NOTEBOOK 9 CELL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 1
FU571Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99DG Class 9 — LithiumRestricted Air Freight
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FREQUENTLY ASKED QUESTIONS
What is F8TTW?
F8TTW is a Dell 90Whr 9-Cell Lithium-Ion Primary manufactured by DELL. It is classified as a MRO (MRO_GENERAL).
What parts can replace F8TTW?
There is 1 known substitute for F8TTW: FU571. Substitute compatibility should be verified for your specific system.
Is F8TTW still available?
F8TTW is currently cancelled.
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