The Freedom Won eTower 2 LiFePO4 Battery 5kW 52V is an economical, modular lithium iron phosphate (LiFePO4) energy storage solution designed for residential and light commercial solar installations. Combining reliable battery performance, intelligent battery management and convenient remote monitoring, the eTower 2 provides a flexible solution for backup power, solar self-consumption and off-grid energy storage applications.
Designed with a modular and stackable architecture, the Freedom Won eTower 2 allows users to expand their battery storage capacity as their energy requirements grow. Individual battery units can be stacked up to six units for a total nominal storage capacity of 30kWh, while parallel configurations can support up to 15 units, providing a maximum nominal capacity of 75kWh.
The battery incorporates integrated Wi-Fi and Bluetooth connectivity, enabling remote and local monitoring of battery performance. Its updated Battery Management System (BMS) provides improved control, monitoring and data logging, while integrated forced-air cooling fans help manage operating temperatures across the battery cells.
With its 5U module design, the eTower 2 is suitable for installations where efficient use of space, modular expansion and straightforward system monitoring are important considerations.
Please note: Accessories are excluded from the product offering and may need to be purchased separately, depending on the installation requirements.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Freedom Won |
| Product Name | eTower 2 LiFePO4 Battery |
| Part Number | F-WON-E-TOWER-RM |
| Product Category | Storage Systems – Li-ion Battery Pack |
| Battery Chemistry | Lithium Iron Phosphate (LiFePO4) |
| Nominal Battery Voltage | 52V |
| Power Rating | 5kW |
| Nominal Energy Capacity | 5kWh |
| Depth of Discharge (DoD) | 90% |
| Approximate Usable Energy at 90% DoD | 4.5kWh |
| Maximum Stackable Units | 6 Units |
| Maximum Stackable Capacity | 30kWh |
| Maximum Parallel Units | 15 Units |
| Maximum Parallel Capacity | 75kWh |
| Connectivity | Integrated Wi-Fi and Bluetooth |
| Monitoring | Remote and Local Monitoring |
| Battery Management System | Updated BMS with Monitoring and Data Logging |
| Cooling System | Integrated Forced-Air Cooling Fans |
| Module Design | 5U |
| Warranty | 5-Year Limited Warranty |
| Accessories | Excluded |
| Applications | Residential and Light Commercial Energy Storage |
Note: The usable energy figure of approximately 4.5kWh is calculated from the stated 5kWh nominal capacity and 90% depth of discharge. Confirm the manufacturer’s detailed datasheet for exact electrical ratings, dimensions, weight, charge/discharge limits and inverter compatibility.








