The Huawei ESM-4801A1 is a 48V smart energy storage lithium battery management module designed for telecom base stations and data centers, integrating high-reliability LiFePO4 cells, advanced BMS, and bidirectional DC/DC power conversion.
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This module integrates energy storage, smart charge-discharge control, and communication management into a single unit, featuring high energy density, long cycle life, and exceptional environmental adaptability to ensure uninterrupted telecom networks.
Effectively resolves the issues of traditional lead-acid batteries such as large size, short lifespan, high maintenance costs, and insufficient backup time, enabling refined energy management and remote intelligent O&M.
Widely deployed in outdoor macro sites, indoor distributed antenna systems (DAS), edge data centers, and off-grid solar hybrid power systems for major telecom operators.
| Key specifications | Value |
|---|---|
| Rated Voltage | 48VDC |
| Cell Chemistry | Lithium Iron Phosphate (LiFePO4) |
| Communication Interface | RS485 / CAN |
| Operating Temperature Range | -20 ~ +55°C |
| Conversion Technology | BMS & Bidirectional DC/DC |
| Monthly Self-Discharge Rate | < 2% per month (at 20°C standard) |
| Designed Float Service Life | 10 to 12 Years (at 25°C nominal) |
| Case Flame Retardancy | Reinforced ABS Enclosure (UL94-V0) |
| Form Factor | 19-Inch Rackmount |
| Terminal Tightening Torque | 10 to 12 N·m (M8 Silver-Plated Copper) |
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