- Produced by A123 company
- Energy density up to 211wh/kg
- Very good performance under low and high temp.
- Can be charged at -20℃, discharge at -30℃
- Can be discharged at high current(up to 6C and 10C)
- Poor electrolyte, can be operated in any directions
- Lifespan up to 3000times at 1C
Brand A123_3.7V 32Ah lithium batteries a123 system produced
Description
Brand A123_3.7V 32Ah lithium batteries a123 system produced. This lithium ion battery cell continuous discharge current is 6C(156A), Peak discharge current can up to 10C(320A, 10 seconds), Max.(rapid)continuous charge current can be 2C(52A). Impedance is only 0.8±0.15 mΩ 1KHz at 30%SOC. Detailed datasheet please reference to below table or download the PDF sheet.
Brand A123_3.7V 32Ah lithium batteries a123 system produced Specifications
| Brand Name | A123 Systems |
| Nominal Capacity | 32Ah (1.0C, 4.2~2.7V) |
| Nominal Voltage | 3.7V |
| Impedance | ≤0.8mΩ |
| Charge cut-off voltage | 4.15V |
| Discharge cut-off voltage | 2.7V |
| Max.(rapid) charge current | 2.0C |
| Max.discharge current | 6.0C (peak current 10.0C) |
| Charging time | Standard charge: 1.5hours |
| Rapid charge: 0.5hours | |
| Operating temperature | Charge:-20℃～55℃ |
| Discharge:-30℃～55℃ | |
| Storage temperature | Less than 3 mouths:-40℃～55℃ |
| Less than 1 year: -10℃～25℃ | |
| Storage humidity | 65±20%RH |
| Cell weight | Approx: 561±15g |
Brand A123_3.7V 32Ah lithium batteries a123 system produced Image and Dimensions
| Item | Description | Dimensions(mm) |
| T | Thickness(T) | 7.45 ± 0.16 mm |
| W | Width(W) | 161 ± 1.5mm |
| L | Length(L) | 227 +1.0/-1.5mm |
Brand A123_3.7V 32Ah lithium batteries a123 system produced Electrical characteristics
| No. | Item | Parameters | Test Method and Condition |
| 1 | Capacity | ≥32.0Ah | The cell performs standard charge and discharge，calculate the discharge capacity. |
| 2 | AC impedance | 0.8 ± 0.15 mΩ | AC impedance of the cell is measured at 1KHz at 30%SOC. |
| 3 | Rate Discharge | 1.0C ≥ 100% 2.0C ≥ 99% 3.0C ≥ 95% |
After standard charging，discharge capacity is measured with the various currents at the cut off voltage of 2.7V |
| 4 | Discharge at high & low temperature | 45, 55℃≥95%; 25℃≥100%; 10℃≥95%; 0℃≥90%; -10℃≥85%; -20℃≥80%; -30℃≥70% |
After standard charging，the cell is stored in different temperature (25℃，-20℃，0℃，10℃， 45℃，55℃) for 2 hours, then test the cell capacity separately in each temperature with standard discharge method. (-10, 0℃ cut off at 2.5V, -20,-30℃ cut off at 2.2V). |
| 5 | Cycle Life | 25℃, Remaining capacity≥80% |
The cell performs charge and discharge cycle at 1C current for 3000 times, and between charge and discharge the cell should rest at least 10 min, then test the remaining capacity. |
| 6 | Storage at 25℃ 100% SOC |
Capacity recovery ≥98% | After standard charging，the cell stored at 25℃ for 30 days, then measured the remaining and recovery capacity by standard discharge method. |
| 7 | 50% SOC Storage at 45℃ |
Remaining capacity≥95%； Capacity recovery ≥98% |
After standard charging to 50%SOC, the cell stored at 45 ℃ for 30 days, then the cell stored at 25℃for 4h, measured the remaining capacity and capacity recovery by standard discharge method. |
If you need datasheet about this Brand A123_3.7V 32Ah lithium batteries a123 system produced, please download this PDF file to check more details.
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