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[China]
Trade Verify
Address: A802-G1, Building No. 3, Innovation Park, No. 449, Huanggekeng, Longgang,
Contact name:Olivia Lee
Shenzhen Baidun New Energy Technology Co., Ltd. |
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Verified Suppliers
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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 | ||
| 9 | Storage temperature | Short term (within 1 month) | -20°C-45°C | N.A. |
| Long term (within 1 year) | 0°C 〜35°C | |||
| 10 | Storage humidity range | <90% | ||
| 11 | Self^discharge rate per month | <3%/month | Temperature: (25±2)°C, Storage scope of SOC: 30% 〜50%SOC | |
Main Performance
| 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. |
FAQ
Q1: How do we place an order?
A: You can chat online with our sales or send e-mail, specify the
item, quantity, payment or other specifications below the order.
Q2: What certifications can your battery meet?
A: Our batteries have these certificates: CE, FC, MSDS, ROHS, UN.
Q3: How to calculate the shipping cost?
A: Please contact us before placing an order. We will calculate the
specific shipping cost according to different countries, different
postal codes and different order weights. We will provide you with
the best shipping method and accurate shipping.
Q4: What are the acceptable delivery terms?
A: There are many delivery terms we can accept, but currently the
most commonly used are FOB, CIF, EXW, DEQ, DDP, DDU, express
Q5: Can I get free samples?
A: Usually we do not provide free samples, but we can refund the
sample cost when the buyer places a large order.
Q6: The delivery time set by your system is 15 days. Do I really
need to wait that long?
A: No, if it is not a customized order, we usually send it out
within 7 working days.
Q7: Does the shipping method to our country include tax?
A: It depends on the country and shipping method you choose. Most
Asian countries, most European countries, the United States and
Canada have tax-included shipping channels.
Q8: How can I confirm the quality of the products you sent me?
A: No matter how much you order, we will send you test videos and
pictures of each product before shipping. Test the voltage and
internal resistance of each battery.
Q9: The battery is so heavy, is it easy to break on the road?
A: This is also an issue that we are very concerned about. After
long-term improvement and verification, our packaging is now very
safe and reliable. When you open the package, you will definitely
feel our sincerity.
Q10: Where is the main market of BAIDUN?
A: With many years of experience, we cooperate with many customers
all over the world. Mainly from the top 3 markets are North
America, Europe and Asia, and a few other countries.
Q11: What are the accepted payment types and currencies?
A: 1) The payment types we accept: credit card, CC, paypal and T/T.
2) Accepted currencies: US dollar, Euro, Japanese yen, Canadian
dollar, Australian dollar, Hong Kong dollar, British pound, Chinese
yuan, Swiss franc
Customer first
24-hour online service to solve any order problems for you!
