This is a battery for a RAID controller commonly called the SuperCAP (or supercapacitor) by Supermicro. The battery is mounted to the chassis and attached to compatible raid controllers via cable.
Notes
- Uses supercapacitor technology instead of a traditional lithium-ion battery, providing improved reliability and a longer service life.
- During a power failure, the capacitor supplies enough power for the RAID controller to transfer cached write data to onboard non-volatile flash memory.
- Once power is restored, the RAID controller automatically restores the cached data from flash memory.
- Designed for LSI MegaRAID CacheVault RAID controllers and is not compatible with older Battery Backup Unit (BBU) systems.
- Often found with LSI MegaRAID 9361, 9364, 9380, and other CacheVault-enabled RAID controllers.
- Requires the appropriate CacheVault cable and mounting location within the server chassis.
- Does not provide power to the RAID controller itself; it only provides temporary power for cache protection during power loss.
- Common replacement part for failed or depleted CacheVault capacitor packs.
- Also referenced by part number L3-00099-01 by some vendors.