About this replacement
3WARE BBU-MODULE-03 / BBU-95 — 3.7V Li-ion Replacement Battery (190-3010-01)
This is a 3.7V, 1800mAh Li-ion cell for the 3WARE BBU-MODULE-03 and BBU-95 backup battery units. It fits controllers in the 9650SE and 9500 series. The BBU holds cache power during an unexpected power loss so the controller can flush dirty writes before the system goes down.
- 9650SE and 9500 series compatibility: These controllers share the same BBU socket, connector pinout, and BMS handshake. The 190-3010-01 cell is what all four fit models draw from — the backup window estimate is recalculated per cell, not per controller model.
- Bench tested on actual hardware: We ran this cell through a full discharge and timed recharge sequence, then triggered a simulated power event. The BMS held the cache voltage rail steady through the discharge curve and reported capacity within spec to the controller.
- Learn cycle after installation: After swapping this cell in, initiate a battery learn cycle from the controller management interface — StorCLI: storcli /cx bbu show; or from the 3DM2 interface. The controller will stay in write-through mode until the learn cycle completes and recalibrates the backup window against the new cell's actual capacity.
RAID controller staying in write-through mode after battery swap
Write-through mode is the controller's default safe state when it cannot confirm a valid backup window. After a cell swap, the controller does not automatically trust the new cell — it needs a full learn cycle to measure actual capacity and recalculate the backup window. Until that cycle completes, the controller disables write-back caching regardless of how healthy the new cell reads at rest. Run the learn cycle manually from StorCLI or 3DM2 and allow 24 to 72 hours for it to finish under normal system load.
Management console still showing a battery fault days after installation
The 3WARE controller runs its battery self-assessment on a timed interval, not at boot or on cell insertion. If the console flagged the old cell as failed, that fault status persists until the next scheduled assessment cycle runs and returns a clean result. Manually clearing the fault and triggering a learn cycle from 3DM2 or StorCLI forces a fresh assessment rather than waiting for the scheduled window. Confirm the cell is reading at or above 3.6V before starting the cycle.