Product Description
The IBM 39J5554 (cross-referenced as 42R5130 and 42R8305) is a new replacement cache battery pack designed for various IBM PCI-X and PCIe RAID disk controllers. This 3.6V/3.7V Lithium-Ion battery (typically 3900 mAh) provides backup power to the write cache, ensuring data integrity during power loss events in high-availability IBM i and Power Systems environments.
Key Features
- New, fully charged Li-Ion cache battery with 3900 mAh capacity.
- Provides non-volatile cache protection for RAID write caching.
- Direct replacement for expired or failed batteries in supported adapters.
- Compatible with multiple FRU/adapter numbers for broad applicability.
- Maintains RAID performance and data protection during outages.
Technical Specifications
| Attribute | Details |
|---|---|
| Part Numbers | 39J5554, 42R5130, 42R8305 (also 97P4846 equivalent in some listings) |
| Type | Cache battery pack (rechargeable Li-Ion) |
| Voltage / Capacity | 3.6V / 3.7V, 3900 mAh (2-cell) |
| Primary Use | Backup power for RAID controller write cache |
| Condition | New |
Benefits
This cache battery is essential for protecting cached write data in RAID configurations, preventing data loss during unexpected power interruptions. Replacing an old or failed battery with this new IBM part restores full cache functionality, maintains high performance, and ensures compliance with data integrity requirements in IBM i environments. As a new unit, it offers maximum lifespan and reliability compared to used or refurbished options, helping extend the service life of legacy RAID adapters without system downtime.
Compatibility
The IBM 39J5554 / 42R5130 / 42R8305 cache battery is compatible with various IBM RAID controllers and adapters, including:
- 5738, 5777, 571E (PCI-X Quad-Channel Ultra320 SCSI RAID Adapter)
- 2780, 5708, 574F, 5580, 571F, 571B, 572B (PCI-X/PCIe RAID Disk Controllers)
- Other related FRU adapters such as 39J0686, 42R5133, 97P6094, 0641, 0649, 5582, 5583 It supports IBM iSeries (System i), Power Systems (pSeries/System p), and POWER6/POWER7-era servers using these controllers for disk attachment and RAID protection. Always verify the exact adapter model and battery connector type in your system before replacement.
Warranty: 60 days from DataTechComputer.com.
