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Home » Brand a123 system battery_3.7V 37Ah lithium batteries instock

Brand a123 system battery_3.7V 37Ah lithium batteries instock

  • Produced by A123 company
  • Energy density up to 190wh/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
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Brand a123 system battery_3.7V 37Ah lithium batteries. This lithium ion battery cell is produced by A123 systems, continuous discharge current is 5C(185A), Peak discharge current can up to 10C(370A, 10 seconds), Max.(rapid)continuous charge current can be 2C(74A). 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 system battery_3.7V 37Ah lithium batteries Specifications

Brand Name A123 Systems
Nominal Capacity 37Ah (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 5.0C (peak current 10.0C)
Charging time Standard charge: 1.5hours
Rapid charge: 0.5hours
Operating temperature Charge:-20℃~55℃
Storage temperature Less than 3 mouths:-40℃~55℃
Less than 1 year: -10℃~25℃
 Storage humidity  65±20%RH
 Cell weight  Approx: 723±15g

Brand A123 system battery_3.7V 37Ah lithium batteries Image and Dimensions

a123 system battery


Item Description Dimensions(mm)
T Thickness(T) 11.3 ± 0.16 mm
W Width(W) 102.5 ± 1.5mm
L Length(L) 308.5+1.0/-1.5mm


No. Item Parameters Test Method and Condition
1 Capacity ≥37.0Ah 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%;
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 system battery_3.7V 37Ah lithium batteries, please download this PDF file to check more details.

Brand A123 system battery_3.7V 37Ah lithium batteries

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