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Product Details:
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| Size: | 172*208*72mm | Weight: | 5.6KG |
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| Nominal Voltage: | 3.2V | Rated Capacity: | 280K |
| AC Impedance Resistance: | ≤0.25mΩ | Max Charge Current: | 1C |
| Charging Temperature: | 0℃~55℃ | Self^discharge Rate Per Month: | <3%/month |
| Standard Discharge Time: | 2.0h | Cycle Life: | 6000times |
| High Light: | 3.2 volt Lithium Ion Batteries,Lithium Ion Batteries 5.6KG,Lithium Lifepo4 Battery 5.6KG |
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(1) We order batteries directly from the brand. Guarantee A grade, brand new, genuine, sufficient capacity, voltage, resistance, and data matching.
(2) There are three styles of battery terminals to choose from. They are: original terminals, punched terminals and soldered studs. Punch M6, stud M6. Generally, welding studs are easier to assemble.
(3) A battery is equipped with a bus bar and two screws as standard. [Bus size: 90*20*2mm (copper nickel plated) screw size: M6]
(4) Lithium battery modules are connected in parallel or in series
(5) Warranty period: 3years
Lifepo4 battery 3.2V 280ah General Technical Parameter
| # | Item | Parameter | Remark | |
| 1 | Nominal Capacity | 280.0 Ah | (25±2) °C, Standard charge and discharge | |
| 2 | Typical Voltage | 3.2 V | ||
| 3 | AC Impedance Resistance( 1 KHz) | <0.25 mΩ | ||
| 4 | Standard charge and discharge | Charge / discharge current | 0.5 C/0.5 C | |
| Cut off voltage of charge / discharge | 3.65 V/2.5 V | |||
| 5 | Maximum charge / discharge current | Continuous charge / discharge | 1 C/1 C | According to continuous / pulse charge and discharge ammeters |
| Pulse charge / discharge (30s) | 2C/2C | |||
| 6 | Recommended scope of SOC | 10% 〜90% | N.A. | |
| 7 | Charging Temperature | 0 °C〜55 °C | According to continuous / pulse charge and discharge ammeters | |
| 8 | Discharging Temperature | -20 °C~55 °C | ||
| No. | Item | Requirements | Measuring Procedure |
| 1 | Rate discharge performance at25°C |
Discharge capacity/nominal capacity×l00% A) 0.5C(A)>100% B) 1.0C (A)>98% |
After standard charge and Ih rest, discharge to 2.5V cutoff with the current of 0.5 C (A), 1.0C (A), respectively. If the discharge capacity fails to meet the technical requirements, this test is allowed to be repeated three times |
| 2 | Discharge performance at different temperature |
Discharge capacity/nominal capacity×100 % A) 55°C>95% (Cutoff 2.5V) B) -20°C>70% (Cutoff 2.0V) |
Measure the initial capacity and state of the battery: A) after standard charge and 5h rest at 55°C, discharge to 2.5V cutoff with the current of 0.5C(A)； B) after standard charge at 25±2°C and 24h rest at -20°C±2°C, discharge to 2.0V cutoff with the current of 0.5C(A). |
| 3 |
The capacity retention and recovery at 25°C |
Capacity Retention ≥ nomi nal capacity×95 % Capacity Recovery ≥ nomi nal capacity×97 % |
Measure the initial capacity and state of the battery, after standard charge and stored for 28 days, discharge to 2.5V cutoff with the current of 0.5C (A), calculate the remaining capacity the retention can be expressed as a percentage of nominal capacity. After standard charged and 30mins rest, calculate the discharging capacity (Ah), the recovery can be expressed as a percentage of nominal capacity. The recovery is measured with discharge current 0.5C (A) with 2.5V cut-off at (25±2) °C. |
| 4 |
cycle life at 25 °C |
>6000 cycle @0.5C/0.5C | Under the 300kgf clamp, after standard charged and 30mins rest, discharge to 2.5V cutoff with the current of 0.5C(A) at (25±2) °C, and then start the next cycle, end with the capacity decreasing to 80% of the |
| initial capacity. The number of cycles is defined as the cycle life of the battery. | |||
| 5 |
cycle life at 45 °C |
>2500 cycle @0.5C/0.5C | Under the 300kgf clamp, after standard charged and 30mins rest, discharge to 2.5V cutoff with the current of 0.5C(A) at (45±2) °C, and then start the next cycle, end with the capacity decreasing to 80% of the initial capacity. The number of cycles is defined as the cycle life of the battery. |
| 6 |
End of life managem ent |
capacity/nominal capacity <70% |
During the use of the battery, the battery s hall be stopped when the end of life regul ations are exceeded. |
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Contact Person: Anna Liu
Tel: +86 13418570597
Fax: 86-150-8945-9870
