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LFP 12V 200AH
JIAXIN
Solar Lithium Battery LifePO4 12V200AH Specifications
No | Item | Rated parameters | Remark |
1 | Rated Capacity | 208Ah | The capacity after charging at 0.2C and then discharging to 10V at 0.2C under a temperature of 25±2℃ |
Min Capacity | 200Ah | ||
2 | Nominal Voltage | 12.8V | |
3 | Charging cut-off voltage | 14.6V | Constant Voltage Charging |
4 | Discharging cut-off voltage | 10V | |
5 | Standard Charging Current | 40A (0.2C) | Maximum charging current 60A |
6 | Standard Discharging Current | 40A (0.2C) | Maximum discharging current 70A |
7 | Condition to stop charging | ≤0.05C | |
8 |
Using temperature | Charge 0~55 |
Relative humidity 45%~85% |
Discharge -20~60℃ |
9 |
Storage Temp |
≤ 1 month |
-30-55℃ |
During storage, it should be kept in a clean, dry, and well-ventilated indoor environment where the ambient humidity does not exceed 75%. It should be avoided to come into contact with corrosive substances and kept away from fire sources and heat sources. The battery must be charged and discharged once every 6 months and recharged to 50%~70% of its relative capacity. |
≧3 months | -10-45℃ | |||
Recommended storage | -10-35℃ |
Discharge method: Discharge at a constant current (0.2C) to the cut-off discharge voltage under 25±2℃。
Charging Method: Charge with constant voltage of 14.6V and constant current of 0.2C, and stop charging when the current is less than 5A (at 25±2℃, relative humidity 65%).
4 、Battery Characteristics and Test Conditions
No | Item | Standard | Detection conditions | |
1 | Visual inspection | No protrusions, discoloration, deformation, or damage | Visual inspection | |
2 | Size |
615*395*32mm | Use a caliper (precision 0.01mm) | |
3 |
Weight |
≤ 35.4 kg（with MTTP) |
Use an electronic scale (with a precision of 0.1g) | |
4 |
Internal resistance | < 20mΩNo hyphens included | Measured within one hour after standard charging using a 1 kHz analog sine wave method at an ambient temperature of 25±2℃ | |
5 |
Open-circuit voltage |
≥ 12.8V | Measured after fast charging for 2.5 hours at an ambient temperature of 25±2℃ | |
6 |
Cycle life |
≥ 80%（after 3000 times cycle life） | Under an ambient temperature of 25±2℃, perform 3000 cycles of charge and discharge. Charging voltage/current: 14.6V/0.5C (termination current ≤5A). Discharge current: 0.5C (termination voltage 10V). Rest time: 10 minutes. | |
7 |
Power retention |
≥ 97% | After standard charging, place it in an ambient temperature of 25±2℃ for 28 days, then calculate the power consumption. | |
8 |
Temperature Discharge Characteristics |
55℃ |
≥99% |
After standard charging is complete, discharge at the standard discharge current in the corresponding ambient temperature until the termination voltage is reached. |
25℃ |
≥100% | |||
-20℃ |
≥80% | |||
5 、Security features
No | Item | Standard | Detection conditions |
1 |
Leakage |
No leakage | After standard charging is completed, place it in an environment with ambient temperature of 60±2℃ and relative humidity of 85% for 20 days, then place it in an environment with 25±2℃ for 1 week. |
2 |
Overcharge protection | No cracking, sparks, smoking, or leakage | After standard charging is completed, connect a 0.5C/16V constant voltage and constant current power supply to the input terminal for 24 hours in an environment with a temperature of 25±2℃. |
3 |
Short-circuit protection | No cracking, sparks, smoking, or leakage | After standard charging is complete, connect the positive and negative terminals of the battery directly with a 100mΩ±10mΩ wire and leave it for 8 hours in an environment with a temperature of 25±2℃. |
4 |
Temp cycle |
No explosion, fire, smoke emission, or leakage |
After standard charging is complete, cool down to -40°C within 60 minutes and maintain that temperature for 90 minutes, then heat up to 25°C within 60 minutes, heat up to 85°C within 90 minutes and maintain that temperature for 110 minutes, then cool down to 25°C within 70 minutes. Observe for 1 hour after 5 cycles. |
5 | Overcharge protection voltage：14.6±0. 1V（<1.7s） | ||
6 | Overcharge Release Protection Voltage：14V | ||
7 | Over-discharge protection voltage：9.4±0.1V (<900ms) | ||
8 | Over-discharge Protection Voltage Release：10.2V | ||
9 | Over-current Discharge Protection：140-150A,Typical value 145A(<250ms) | ||
10 | Circuit Static Current：≤40uA | ||
