V3500 V3700 V5000 Battery for IBM BBU

Here is the comprehensive technical profile and product specification sheet for the entry-and-mid-range IBM Storwize Cache Backup Battery module group.

Product Overview

This family of part numbers represents the Lithium-Ion (Li-ion) Battery Backup Unit (BBU) cartridge utilized inside the node canisters of IBM Storwize V3500, V3700, and V5000 (Gen1) disk storage enclosures.

The module is explicitly classified as an emergency cache protection device. If an unexpected AC power failure occurs at the rack distribution level, this BBU instantaneously supplies standby power to the node’s main memory plane. This keeps the processor alive just long enough to dump unwritten, volatile write-cache data safely onto internal non-volatile drive sectors, completely isolating the infrastructure from data corruption or metadata loss.

Cross-Reference & Part Number Matrix

These numbers refer to identical physical form factors and chemical parameters, frequently swapped depending on manufacturing line batches or region kit updates:

• Primary System FRU P/Ns: 00Y4594, 90Y7689, 00Y4643

• Component / Sub-assembly P/Ns: 90Y7632, 44X3320, 00Y4592, 45W8454

• Original Cell Manufacturer (OEM): Sony / Murata Energy Cell Division (e.g., US18650FT series or equivalent industrial packs)

Technical Specifications

Core System Compatibility

This specific stick-type BBU is cross-compatible across several entry-level IBM storage arrays:

• IBM Storwize V3500 Control Enclosures: 2071-02A, 2071-12A, 2071-24A

• IBM Storwize V3700 Control Enclosures: 2072-12C, 2072-24C, 2072-12E, 2072-24E (Gen1 systems)

• IBM Storwize V5000 Control Enclosures: 2077-12C, 2077-24C, 2078-12C, 2078-24C (Gen1 systems)