3.2V 280Ah Rechargeable Lithium Iron Phosphate Energy Storage Battery
- Exceptional cycle life: Supports 8000 cycles with 70% capacity retention, ensuring long-term reliability for energy storage systems.
- Wide temperature adaptability: Operates efficiently in extreme conditions, with a discharge temperature range of -30℃ to 60℃, suitable for diverse climates.
- Low self-discharge: ≤2% per month, maintaining capacity effectively during extended storage periods.
- 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 maintaining power supply in energy storage applications.
| Parameter |
Details |
| Nominal Voltage |
3.2V |
| Nominal Capacity |
280.0Ah (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 |
5.56±0.3Kg |
| 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 |
≤2% 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 |
| High-temperature storage: 45±2℃, 100% SOC, 300±50Kgf preload for 30 days |
≥95% residual capacity |
| Cycle life: 25±2℃, 0.5C/0.5P charge/discharge, 300±50Kgf initial pressure |
8000 cycles with ≥70% capacity retention (≥196Ah) |
The Energy Storage Battery exhibits stable discharge performance across different temperatures:
- At 45℃: Discharge energy ≥896Wh (tested at 0.5P, 2.5V~3.65V).
- At 5℃: Discharge energy ≥716.8Wh (tested at 0.5P, 2.5V~3.65V).
Optimal performance is achieved within the 20~30℃ range.
| Type |
Temperature Range |
Maximum Charge Current (C) by Temperature* |
Maximum Discharge Current (C) by Temperature* |
| Charging |
0℃~60℃ |
0℃/60℃: 0C; 2~5℃: 0.12C; 7~12℃: 0.30C; 15℃: 0.5C; 20~45℃: 1.0C; 50℃: 0.5C; 55℃: 0.5C |
- |
| Discharging |
-30℃~60℃ |
- |
-30℃: 0.2C; 5℃: 0.3C; 10℃: 0.5C; 15℃: 0.8C; 20~45℃: 1.0C; 50℃: 0.5C; 55℃: 0.5C; 60℃: 0C |
*Note: The charging/discharging rate between 55-60℃ follows a linear relationship; other temperature ranges refer to the minimum temperature rate.
Complies with UN38.3, CE, RoHS, and IEC 62133 safety standards.
- Long-lasting durability: 8000 cycles with 70% capacity retention reduces replacement frequency, making it ideal for large-scale Energy Storage Battery systems.
- Broad temperature tolerance: Functions reliably in extreme cold (-30℃) and heat (60℃), suitable for outdoor and industrial environments.
- Low self-discharge: Maintains capacity for extended periods, minimizing maintenance needs.
- Enhanced safety: Requires a BMS to monitor voltage, current, and temperature, preventing hazardous conditions.
- High energy density: Optimized design for efficient energy storage in limited spaces.
- Grid-scale energy storage systems
- Off-grid power solutions
- Backup power supplies for industrial facilities
- Renewable energy storage (solar, wind)
- Commercial energy management systems
A versatile Energy Storage Battery for stable and sustainable power storage.
- Avoid short-circuiting the positive and negative terminals, as this may cause overheating or fire.
- Do not overcharge (voltage >3.65V) or over-discharge (voltage <2.00V), as this can permanently damage the battery.
- Prohibit reverse charging or exposure to mechanical shock, collision, or excessive pressure.
- Use a qualified Battery Management System (BMS) to monitor and control voltage, current, and temperature.
- Do not mix batteries with different part numbers in the same system.
- Charging is prohibited below 0℃ or above 60℃; discharging is not allowed beyond -30℃ or 60℃.
- Short-term storage (1 month): Temperature -30℃~45℃, SOC 25%~40%, humidity ≤85%RH (no condensation).
- Long-term storage (6 months): Temperature -20℃~35℃, SOC 25%~40%.
- For storage exceeding 30 days, perform a full charge-discharge every 3 months to maintain capacity.
- The battery must be used in accordance with this specification. Improper use may result in performance issues or safety risks, and no liability will be assumed for such cases.
- Specifications and performance parameters are subject to change without prior notice. Users should confirm the latest details before use.
- This document is for reference only; actual performance depends on usage conditions.
