Freedom Won 20kWh lithium battery is a high-performance 52 V nominal Lithium Iron Phosphate (LiFePO₄) energy storage system, offering 20 kWh of nominal capacity (approx. 16 kWh usable at 80 % DoD). Designed for residential solar and battery-backed applications, this battery integrates a robust aluminium indoor-rated enclosure, smart Battery Management System (BMS), and CAN/RJ45 communications for system integration. With high charge/discharge capability and a long service life backed by a 10-year warranty, it’s ideal for home energy freedom, solar integration and off-grid readiness.
Key Features
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20 kWh nominal capacity / 16 kWh usable at ~80 % DoD.
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52 V nominal voltage (min 47 V, max 56 V) – compatible with 48 V inverter systems.
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High continuous discharge: up to ~20 kW; maximum discharge up to ~24 kW.
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High charge capability: e.g., 400 A charge current, ~20 kW charge power.
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Integrated BMS protection: over-current, under/over-voltage, temperature, weak cell detection, minimum SoC control.
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CAN bus / RJ45 communication interface for system integration and parallel operation.
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Indoor-rated aluminium enclosure, IP20, designed for safe installation in homes or sheltered environments.
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Long service life: >16 years expected at ~80 % DoD; backed by 10-year warranty.
Technical Data Table
| Parameter | Specification |
|---|---|
| Total Energy Capacity | 20 kWh |
| Usable Energy (80 % DoD) | ~16 kWh |
| Usable Energy (90 % DoD) | ~18 kWh |
| Nominal Voltage | 52 V (min 47 V, max 56 V) |
| Current Capacity (Ah) | ~400 Ah |
| Max / Continuous Discharge Current | 480 A / 400 A |
| Max / Continuous Discharge Power | ~24 kW / ~20 kW |
| Max / Continuous Charge Power | ~20 kW |
| Maximum Recommended Inverter Power (cont.) | ~15 kVA |
| Dimensions (H × W × D) | 745 × 640 × 290 mm approx. |
| Weight | ~173 kg |
| Enclosure | Aluminium, indoor/sheltered, IP20 rated |
| Warranty | 10 years or 6 000 cycles at 80 % DoD |
| Expected Service Life | ~>16 years at 80 % DoD; >20 years at ~50 % DoD |
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