3.2V 206Ah Rechargeable Lithium Iron Phosphate lithium solar battery
- Extended cycle life: Supports 3000 cycles with 80% capacity retention, ensuring long-term reliability for solar energy storage and other applications.
- Wide temperature adaptability: Operates efficiently in extreme temperatures, from -20℃ to 60℃, making it suitable for diverse environmental conditions.
- 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).
- Low self-discharge: ≤3.5% per month, maintaining capacity effectively during storage periods.
- Stable performance: Delivers consistent voltage and current output, ideal for maintaining power supply in lithium solar battery systems and backup setups.
| Parameter |
Details |
| Nominal Voltage |
3.2V |
| Nominal Capacity |
206.0Ah (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) |
≤0.3mΩ (fresh cell) |
| Weight |
4.1±0.15Kg |
| Dimensions |
Thickness: 53.8±0.5mm (under 300±50Kgf pressure); Width: 174.2±0.8mm; Height: 207.1±0.8mm (including poles) |
| Self-discharge |
≤3.5% per month (after 3 months of shipment, stored at 25±2℃ with 40% SOC) |
| Insulation Performance |
Insulation current ≤20mA (tested at 300±50Kgf pressure with 1500±50V voltage) |
| Condition |
Performance |
| Storage at 25±2℃, 100% SOC, under 300±50Kgf preload for 28 days |
≥95% residual capacity |
| Temperature: 25±2℃; Charge/Discharge Rate: 0.5C; Initial Pressure: 300±50Kgf |
3000 cycles with ≥80% capacity retention (≥164.8Ah) |
The lithium solar battery maintains stable discharge performance across different temperatures:
- At 55℃: Discharge capacity ≥195.7Ah (tested at 1.0C, 2.5V~3.65V).
- At -20℃: Discharge capacity ≥144.2Ah (tested at 1.0C, 2.0V~3.65V).
Optimal discharge efficiency is achieved within the 20~30℃ range.
| Type |
Temperature Range |
Maximum Charge Current (C) by Temperature/SOC* |
Maximum Discharge Current (C) by Temperature/SOC* |
| Charging |
0℃~60℃ |
0℃/60℃: 0C; 2~5℃: 0.12C; 7~12℃: 0.30C; 15℃: 0.50C; 20~45℃: 1.00C (80% SOC), 0.75~0.80C (85~90% SOC); 50℃: 0.80C; 55℃: 0.30C |
- |
| Discharging |
-20℃~60℃ |
- |
-20℃: 0.20C; -10℃: 1.00C; 0~10℃: 2.00C; 15~45℃: 2.50~3.00C; 50℃: 2.00C; 55℃: 1.20C; 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 cycle stability: 3000 cycles with 80% capacity retention reduces the need for frequent replacements, ideal for long-term lithium solar battery systems.
- Broad temperature tolerance: Functions reliably in extreme cold (-20℃) and heat (60℃), suitable for outdoor and off-grid applications.
- Low self-discharge rate: Maintains capacity for extended storage periods without frequent recharging.
- Enhanced safety: Requires a BMS to monitor voltage, current, and temperature, preventing overcharge, over-discharge, and short circuits.
- Compact design: Optimized dimensions for easy integration into solar energy storage systems, backup power setups, and industrial applications.
- Solar energy storage systems
- Off-grid power solutions
- Backup power supplies
- Industrial energy storage
- Low-speed electric vehicles
A versatile lithium solar battery for sustainable and reliable energy 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 -20℃ 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 and adjust SOC to 25%~40%.
- Storage beyond 6 months without maintenance may cause capacity loss or cell defects.
- 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.
