Factory Direct 3.2V 12Ah 1C High Capacity 38910 LiFePO4 Battery Cell

HMZ-C3891-120 A 38910 battery is a type of lithium-ion rechargeable battery. The numbers “38910” refer to the battery’s dimensions: it is 38mm in diameter and 91mm in length, and the last “0” means cylindrical battery cell. 38910 batteries are widely used in high-performance applications such as electric vehicles, power tools, power stations, and power walls. They offer a higher capacity than 18650 batteries and are known for their high energy density, long lifespan, low self-discharge rate, and cost-effectiveness. Contact us for more details.

Additional information

Norminal Voltage


Nominal Capacity


AC Impedance


Cycle Life






Product Details:

Battery Data Condition/Note
Nominal  Voltage 3.2V
Nominal Capacity 12Ah 1C Discharge Capacity
 AC Impedance ≤7.5mΩ 10% SOC Test At 1000Hz
Cycle Life ≥2000cycles 1C/100% DOD
Cell Weight 255±5g
Cell Size D38*H91mm Diameter*Height
Battery Type Lifepo4 Cell, 38910,12000mAh
Working Parameter Condition/Note
Charging Method 0.5 C at CC/CV Standard Charging
1C at CC/CV Fast  Charging
End-of-charge Voltage 3.65V CC Mode
End-of-charge Current 0.6A CV Mode
End-of-discharge Voltage 2.0V(-20~20℃),                           2.5V(20~45℃),                            2.75V(45~60℃) DC Mode
Max continuous Discharging Current 24A
Max pulse discharging Current 36A 5s
Charging Temperature 0~60 ℃
Discharging Temperature -20~60℃
Storage Temperature -20~45℃ 1 year

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