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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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| # | 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 | |
| 12 | Dimension | Width | 173.7 ±0.5 mm | Refer to Appendix I |
| 13 | Thickness (under 300+20 kgf, 30%〜40% SOC ) | 72.0 ±1.0 mm | ||
| Average thickness (200 pcs, under 300+20 kgf, 30%〜40% SOC ) | 72.0 ±0.5 mm | |||
| 14 | High (total) | 207.5 ±0.5 mm | ||
| 15 | High (subject) | 204.6 ±0.5 mm | ||
| 16 | Tabs Distance | 123.0±0.3 mm | ||
| 17 | Battery weight | 5.42±0.3 kg | ||
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 th |
| 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. |
Baidun has been cultivating new energy Lifepo4 lithium battery for
12 years!
The main products are lithium iron phosphate batteries, lithium
titanate batteries, ternary lithium batteries, lithium ion battery
cells, battery packs, portable power supplies, household energy
storage, commercial off-grid energy storage and solar system
chargers for solar energy storage systems.
The product application covers the three major fields of "power,
consumption and energy storage". Widely used in: various electric
vehicles, photovoltaic energy storage, household energy storage,
signal system, emergency lighting system, communication equipment,
solar energy and wind energy storage system, backup power supply
for fire fighting equipment, UPS (uninterruptible power supply),
portable digital products, etc. industry.
Baidun has always adhered to the business philosophy of high
safety, high quality and environmental protection as its core
values. Provide customers with the best overall power solutions,
OEM/ODM services and comprehensive after-sales support to meet the
different needs of customers! Integrity and professionalism, this
is also our responsibility!
Why choose Baidun
1. We provide one-stop power solutions to save design time and cost
for customers:
-- Package Design/Case Design/BMS Design
2. Strict quality control system to improve the competitiveness of
customers:
-- 100% PCM test passed IQC
-- OQC 100% capacity test
3. On-time delivery and excellent service:
-- Fast delivery within 10 days when in stock
-- 8 hour response and 48 hour resolution
4. Experienced R&D team to become a professional power solution
consultant for customers:
-- Comprehensive battery testing center (safe and reliable testing)
——Powerful ODM capabilities to meet customized design requirements
FAQ
Q1: 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.
Q2: 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
Q3: 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.
Q4: 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.
Q5: 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.
Q6: 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.
Q7: 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.
Q8: 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.
Q9: 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
We provide one-stop battery power solutions, including cell selection, battery pack assembly, style design, OEM/ODM services and comprehensive after-sales support.
Customer first
24-hour online service to solve any order problems for you!
