HP 3.6 Volt Battery, 307132-001-RFB is a replacement battery for supported HP ProLiant server systems. Its OEM reference is 274779-001, which also helps identify the corresponding battery family.
The battery uses NiMH chemistry and has a rated voltage of 3.6 V. The opened compatibility listing names several ProLiant systems, including BL20p G3 and DL380 G4, among its supported models.
This catalogue variant is listed as used or refurbished. It is intended for server battery replacement where the listed part reference and compatibility match.