The HPE 96W Smart Storage Battery, model 871264-001-RFB, is a server battery pack for Flash-Based Write Cache (FBWC) support. It supplies the cache-support function for the server’s drive controllers, helping maintain the intended storage-cache setup.
The pack connects to the system I/O board through a 145 mm cable. HPE identifies the matching 871264-001 battery as Version 3. The listing describes this item as a lithium-ion battery, suited to its role in a server storage system.