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Technical Data Sheet
BA291U ✓ 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 overall_width: 2.156 INCHES NOMINAL IN, terminal_type: BANANA JACK TOP, overall_height: 3.750 INCHES NOMINAL IN, overall_length: 2.625 INCHES NOMINAL IN, special_features: SEALED METALLIC CASE; 200 CELLS, SERIES CONFIGURATION, voltage_in_volts: 300.0. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6135-00-112-8635, 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
BA291U
NSN: 6135-00-112-8635
FSC: 6135
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
overall_width2.156 INCHES NOMINAL IN
terminal_typeBANANA JACK TOP
overall_height3.750 INCHES NOMINAL IN
overall_length2.625 INCHES NOMINAL IN
special_featuresSEALED METALLIC CASE; 200 CELLS, SERIES CONFIGURATION
voltage_in_volts300.0
terminal_quantity2
time_capacity_in_hours40.00
nondefinitive_spec/std_dataBA-291/U TYPE
NSN6135-00-112-8635
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BATTERY,NONRECHARGEABLE TITLE COMPONENT PN BA291U MFR BATTERY,NONRECHARGEABL
KEY FEATURES
TERMINAL QUANTITY: 2
TERMINAL TYPE: BANANA JACK TOP
NONDEFINITIVE SPEC/STD DATA: BA-291/U TYPE
VOLTAGE IN VOLTS: 300.0
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 FEATURESSEALED METALLIC CASE; 200 CELLS, SERIES CONFIGURATION
OVERALL HEIGHT3.750 INCHES NOMINAL IN
OVERALL LENGTH2.625 INCHES NOMINAL IN
OVERALL WIDTH2.156 INCHES NOMINAL IN
TERMINAL QUANTITY2
TERMINAL TYPEBANANA JACK TOP
NONDEFINITIVE SPEC/STD DATABA-291/U TYPE
VOLTAGE IN VOLTS300.0
TIME CAPACITY IN HOURS40.00
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
493Interchangeable
interchangeable cross-reference
interchangeable
22934Interchangeable
interchangeable cross-reference
interchangeable
SDM323AInterchangeable
interchangeable cross-reference
interchangeable
37879-2Interchangeable
interchangeable cross-reference
interchangeable
27ACInterchangeable
interchangeable cross-reference
interchangeable
ST897Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BA291U?
BA291U is a BATTERY,NONRECHARGEABLE.
What parts can replace BA291U?
There are 18 known substitutes for BA291U: 493, 22934, SDM323A and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BA291U?
BA291U is cataloged in the Federal Logistics Information System (FLIS) under NSN 6135-00-112-8635. This indicates validated use in U.S. government and defense supply chains.
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