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Technical Data Sheet
E91BP-4 ✓ Verified by PartsTable
· COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The BATTERY,NONRECHARGEABLE is a the manufacturer cache protection component designed to preserve data integrity during power loss events in enterprise server and storage controller environments. Key specifications include terminal_type: FLAT SURFACE BOTTOM, special_features: TYPE II-I, ALKALINE MANGANESE DIOXIDE ANSI C18.1B; SIZE AA, voltage_in_volts: 1.5, battery_electrolyte: ALKALINE, commercial_battery_size_designation: AA. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6135-01-447-0950, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
E91BP-4
NSN: 6135-01-447-0950
FSC: 6135
CAGE: 1WSP1 — ENERGIZER HOLDINGS, INC. (USA)
SPECIFICATIONS
terminal_typeFLAT SURFACE BOTTOM
special_featuresTYPE II-I, ALKALINE MANGANESE DIOXIDE ANSI C18.1B; SIZE AA
voltage_in_volts1.5
terminal_quantity2
battery_electrolyteALKALINE
commercial_battery_size_designationAA
NSN6135-01-447-0950
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BATTERY,NONRECHARGEABLE TITLE COMPONENT PN E91BP-4 MFR BATTERY,NONRECHARGEABL
KEY FEATURES
TERMINAL TYPE: FLAT SURFACE BOTTOM
TERMINAL QUANTITY: 2
BATTERY ELECTROLYTE: ALKALINE
COMMERCIAL BATTERY SIZE DESIGNATION: AA
VOLTAGE IN VOLTS: 1.5
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)
SPECIAL FEATURESTYPE II-I, ALKALINE MANGANESE DIOXIDE ANSI C18.1B; SIZE AA
TERMINAL TYPEFLAT SURFACE BOTTOM
TERMINAL QUANTITY2
BATTERY ELECTROLYTEALKALINE
COMMERCIAL BATTERY SIZE DESIGNATIONAA
TERMINAL TYPEFLAT SURFACE TOP
VOLTAGE IN VOLTS1.5
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
115AInterchangeable
interchangeable cross-reference
interchangeable
P115AInterchangeable
interchangeable cross-reference
interchangeable
4915216-8Interchangeable
interchangeable cross-reference
interchangeable
918266R92Interchangeable
interchangeable cross-reference
interchangeable
818X99Interchangeable
interchangeable cross-reference
interchangeable
DW91Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is E91BP-4?
E91BP-4 is a BATTERY,NONRECHARGEABLE.
What parts can replace E91BP-4?
There are 6 known substitutes for E91BP-4: 115A, P115A, 4915216-8 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for E91BP-4?
E91BP-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6135-01-447-0950. This indicates validated use in U.S. government and defense supply chains.
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