Huawei STL2BATTA03 BBU Battery Module 03032PYM for OceanStor S5300 V3/S5500 V3/S5600 V3 Storage

 The Huawei STL2BATTA03 (03032PYM) is a high-reliability Backup Battery Unit (BBU) module designed exclusively for Huawei OceanStor S5300 V3, S5500 V3, and S5600 V3 storage systems. This lithium-ion battery pack acts as an uninterruptible power supply, providing critical temporary power in the event of an unexpected AC power failure. Its primary function is to safeguard user data by allowing the storage controller to safely write cache data to non-volatile memory and perform an orderly shutdown, thus preventing data corruption or loss. Engineered for enterprise environments, the STL2BATTA03 features a hot-swappable design for easy maintenance without system downtime, an integrated battery management system (BMS) for safe operation, and a long service life to ensure consistent performance and data security for mission-critical storage applications.

Figure 1 shows the front panel of STL2BATTA03.

Parameter	Value
Brand	Huawei
Model	STL2BATTA03 (03032PYM)
Product Type	BBU (Backup Battery Unit)
Battery Chemistry	Lithium-ion (Li-ion)
Compatible Systems	Huawei OceanStor S5300 V3, S5500 V3, S5600 V3 Storage Systems
Function	Provides temporary power during AC outage to cache data and shut down safely
Installation	Hot-pluggable / Hot-swappable
Management	Integrated battery management system (BMS)
Features	High reliability, long cycle life, overcharge/discharge protection
Application	Enterprise storage systems, data center backup power