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W7NKD — DELL Latitude 56Wh Li-ion Battery Type 33YDH 15.2V 4 Cells

DELL · BATTERY · LITHIUM
PRODUCT OVERVIEW

W7NKD: DELL Latitude 56Wh Li-ion Battery Type 33YDH 15.2V 4 Cells.

The Dell W7NKD 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.

WHERE IT FITS
BATTERY→ LITHIUM→ W7NKD
SPECIFICATIONS
TypeBattery
Weight300 g
Package depth175 mm
Package width395 mm
Package height70 mm
Package weight426 g
Battery capacity56 Wh
Quantity per pack1 pc(s)
Battery technologyLithium-Ion (Li-Ion)
Number of battery cells4
Harmonized System (HS) code84732990
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 W7NKD MFR DELL DELL Latitude 56Wh Li-ion Battery Type 3
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
SUBSTITUTES & CROSS-REFERENCES 1
33YDHSubstituteBROKER-VERIFIED
DELL Latitude 56Wh Li-ion Battery Type 33YDH 15.2V 4 Cells
substitute
LIFECYCLE

No lifecycle data available.

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FREQUENTLY ASKED QUESTIONS
What is W7NKD?
W7NKD is a DELL Latitude 56Wh Li-ion Battery Type 33YDH 15.2V 4 Cells manufactured by DELL. It is classified as a BATTERY (LITHIUM).
What parts can replace W7NKD?
There is 1 known substitute for W7NKD: 33YDH. Substitute compatibility should be verified for your specific system.
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