3.2V 314Ah Rechargeable Lithium Iron Phosphate Energy Storage Battery
- Extended cycle life: Supports 8000 cycles with 70% capacity retention, ensuring long-term reliability for energy storage systems.
- Broad temperature adaptability: Operates efficiently in extreme conditions, from -30℃ (discharge) to 60℃ (charge/discharge), suitable for diverse climates.
- Low self-discharge: ≤3.5% per month, maintaining capacity effectively during extended storage.
- High safety: Built with lithium iron phosphate chemistry, featuring robust resistance to overcharge, over-discharge, and short circuits when paired with a proper Battery Management System (BMS).
- Stable performance: Delivers consistent voltage and current output, ideal for grid-scale and industrial energy storage applications.
| Parameter |
Details |
| Nominal Voltage |
3.2V |
| Nominal Capacity |
314.0Ah (tested at 25±2℃ under standard charge/discharge mode) |
| Maximum Charge Current |
1.0C (continuous, at 25±2℃; varies with temperature, see Operating Temperature Range) |
| Maximum Discharge Current |
1.0C (continuous, at 25±2℃; varies with temperature, see Operating Temperature Range) |
| Standard Charge Voltage |
3.65V (max per cell, at 25±2℃) |
| Discharge Cut-off Voltage |
2.50V (0℃<T≤60℃); 2.00V (-20℃≤T≤0℃) |
| Internal Resistance (1KHz) |
≤0.25mΩ (fresh cell) |
| Weight |
5.65±0.15Kg |
| Dimensions |
Thickness: 71.8±0.5mm (under 300±50Kgf pressure, 5%-40% SOC); Width: 174.2±0.8mm; Height: 207.1±0.8mm |
| Self-discharge |
≤3.5% per month (after 3 months of shipment, stored at 25±2℃ with 40% SOC) |
| Insulation Performance |
Insulation resistance ≥1GΩ or insulation current ≤20mA (tested at 300±50Kgf pressure with 500±10V/1500±50V voltage) |
| Condition |
Performance |
| RT Storage: 25±2℃, 100% SOC, 300±50Kgf preload for 28 days |
≥95% residual capacity |
| Cycle Life: 25±2℃, 0.5C charge/discharge, 300±50Kgf initial pressure |
8000 cycles with ≥70% capacity retention |
The Energy Storage Battery maintains stable energy output across temperatures:
- At 45℃: Discharge energy ≥984Wh (tested at 0.5P, 2.5V~3.65V).
- At 5℃: Discharge energy ≥804Wh (tested at 0.5P, 2.5V~3.65V).
Optimal performance is achieved within 20~30℃.
| Type |
Temperature Range |
Maximum Charge Current (C) by Temperature* |
Maximum Discharge Current (C) by Temperature* |
| Charging |
0℃~60℃ |
2~5℃: 0.12C; 7~12℃: 0.30C; 15℃: 0.50C; 20~45℃: 1.00C; 50℃: 0.80C; 55℃: 0.30C; 0℃/60℃: 0C |
- |
| Discharging |
-30℃~60℃ |
- |
-30℃: 0.20C; -25℃: 0.30C; -10℃: 0.50C; 15~45℃: 1.00C; 50℃: 0.80C; 55℃: 0.30C; 60℃: 0C |
*Note: Charging/discharging rates between 55-60℃ follow a linear relationship; other ranges refer to the minimum temperature rate.
Complies with UN38.3, CE, RoHS, and IEC 62133 safety standards.
- Longevity: 8000-cycle lifespan reduces replacement needs, ideal for large-scale Energy Storage Battery systems.
- Extreme temperature tolerance: Functions in harsh environments, from freezing -30℃ to high 60℃.
- Low self-discharge: Minimizes capacity loss during storage, ensuring readiness for use.
- Enhanced safety: Requires BMS monitoring to prevent overcharge, over-discharge, and short circuits.
- High energy density: Compact design fits various energy storage setups.
- Grid-scale energy storage
- Industrial backup power
- Renewable energy (solar/wind) storage
- Off-grid power systems
- Commercial energy management
- Avoid short-circuiting terminals; use BMS to prevent high current hazards.
- Prohibit overcharging (voltage >3.65V) or over-discharging (voltage <2.00V) to avoid permanent damage.
- Do not expose to fire, water, or mechanical shock; maintain temperature within operating ranges.
- Use qualified tools for installation; avoid mixing with different part numbers.
- Short-term (1 month): -30℃~45℃, SOC 25%~40%, humidity ≤85%RH (no condensation).
- Long-term (6 months): -20℃~35℃, SOC 25%~40%.
- For storage over 30 days: Full charge-discharge every 3 months to maintain capacity.
- The battery must be used per specifications; improper use voids warranty.
- Specifications are subject to change; confirm latest details before use.
- English version is for reference; Chinese technical specifications prevail.
