Energy storage lithium battery
51.2V 100Ah Stacked Home Energy Storage Battery
The EVFREY 51.2V-942Ah base station backup power system is a 48.2kWh energy-storage solution designed for 5G and other communication infrastructure. Integrating Grade A LiFePO4 cells, modular battery enclosures, a BMS, bidirectional DC-DC power conversion and an in-house EMS, it supports emergency backup power, peak shaving and remote multi-device management for both indoor and outdoor base-station sites.
Product Parameters
| Parameter | 51.2V-100Ah |
| Product Type | Stacked Home Energy Storage Battery |
| Specification | 48V 100Ah |
| Nominal Voltage (V) | 51.2 |
| Nominal Capacity (Ah) | 100 |
| Rated Energy (kWh) | 5.12 |
| Battery Chemistry | LFP (LiFePO4) |
| Cycle Life | 6,000 cycles (80% DOD, 0.2C, 25°C) |
| Service Life | Up to 20 years |
| Maximum Parallel Units | 15 |
| Maximum Charging Voltage (V) | 60 |
| Over-Discharge Voltage (V) | 40 |
| Standard Charging Current (A) | 50 |
| Maximum Charge/Discharge Current (A) | 100 (1C) |
| Peak Charging Current (A) | 120 (1.2C, 2s) |
| Standard Discharging Current (A) | 50 |
| Maximum Discharging Current (A) | 100 (1C) |
| Peak Discharging Current (A) | 120 (1.2C, 2s) |
| Dimensions (W×D×H) (mm) | 498×472×182.2 |
| Approx. Weight (kg) | 46 |
| Communication | CAN, RS485, RS232 |
| Storage Condition (within 6 months) | 25°C (77°F) |
| Storage Condition (within 3 months) | 35°C (95°F) |
| Storage Condition (within 1 year) | 45°C (113°F) |
| Charging Temperature (°C) | 0 to +45 |
| Discharging Temperature (°C) | -10 to +45 |
| Cooling Method | Natural Cooling |
| Ingress Protection | IP30 |
| Transport Documentation | UN38.3, MSDS |
| Standards | IEC 62619:2017, EN IEC 61000-6 |
Long Cycle and Service Life
The LiFePO4 battery is rated for up to 6,000 cycles under the specified test conditions of 80% DOD, 0.2C and 25°C, with a stated service life of up to 20 years. This long-life design supports frequent household energy cycling and helps improve long-term system economics.
Compact 5.12kWh LFP Module
Each 51.2V 100Ah module stores 5.12kWh of energy in a compact 498×472×182.2mm enclosure. The low-profile design uses installation space efficiently and makes the system suitable for utility rooms, garages, solar equipment areas and other residential locations.
Wide Inverter and Communication Compatibility
CAN, RS485 and RS232 interfaces support communication with compatible inverters, computers and monitoring equipment. Compatibility with multiple inverter protocols simplifies system integration and enables clearer operating-data exchange between the battery and connected power equipment.
Scalable Parallel Expansion
Up to 15 battery modules can be connected in parallel, expanding the system from 5.12kWh to as much as 76.8kWh. This modular architecture allows homeowners to start with the capacity they need and add more storage as electricity consumption, solar generation or backup requirements increase.
