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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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--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.
-- A battery is equipped with a bus bar and two screws as standard. [Bus size: 90*20*2mm (copper nickel plated) screw size: M6]
-- Lithium battery modules are connected in parallel or in series
-- 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 | ||
| 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 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. |
Advantages of lithium batteries: (the reason why lithium batteries are used instead of lead-acid batteries)
1. Longer cycle life than lead-acid batteries
-At least 2000 times-8000 times 40% DOD
2. Half the weight of lead-acid batteries
3. Fast charge-charge to 99% in 2.5 hours, while lead-acid batteries require up to 13 hours.
4. Can accept high charging rate (100A)
5. No maintenance required
6. No battery memory
7. Almost no temperature derating affects 8.95% energy efficiency
Lithium iron phosphate batteries are widely used:
1. Can be used for energy storage
Wind power system energy storage, home/outdoor solar energy storage, solar street lamp energy storage, etc.
2. Can be used for emergency backup in various industries
Telecommunication base/cable television system/computer server center/medical institution/military equipment.
3. Can also be used for other daily purposes
Bicycles/electric vehicles/new energy vehicles/RVs/golf carts/marine yachts/electric skateboards/electric wheelchairs, etc.
Baidun, we are an enterprise integrating design, development, production and sales. Focus on Lifepo4 battery for 12 years. The main products are lithium iron phosphate batteries, lithium titanate batteries, ternary lithium batteries, battery packs, portable power supplies, household energy storage, commercial off-grid energy storage and solar system chargers for solar energy storage systems.
Product applications cover the three major areas of "power, consumption, and energy storage". Widely used in: various electric vehicles, photovoltaic energy storage, household energy storage, signal systems, emergency lighting systems, security systems, communication equipment, solar and wind energy storage systems, backup power supplies for fire-fighting equipment, UPS (uninterruptible power supply), outdoor Lighting, portable digital products and other industries.
We always adhere to the business philosophy of high safety, high quality and environmental protection as our core values. Provide customers with the best overall power supply solutions, OEM/ODM services and comprehensive after-sales support to meet the different needs of customers! Honesty and professionalism, this is also our responsibility!
Baidun, always here, is your sincere partner for success in your career!
1. Where is the main market of BAIDUN?
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.
2. How do we guarantee the quality?
It is always a pre-production sample before mass production;
Always perform a final inspection before shipment;
3. What can you buy from us?
Lithium batteries, battery packs, chargers, photovoltaic off-grid energy storage systems
4. The battery is so heavy, is it easy to break on the road?
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.
5. What services can we provide?
Accepted delivery terms: FOB, EXW;
Accepted payment currencies: U.S. dollar, Euro, Japanese yen, Canadian dollar, Australian dollar, Hong Kong dollar, British pound sterling, Chinese yuan, Swiss franc;
Accepted payment types: T/T, L/C, credit card, PayPal, Western Union, cash;
Language: 17 languages
6. The delivery time set by your system is 15 days, do I really need to wait that long?
No, if it is not a customized order, we usually send it out within 7 working days.
Why choose Baidun
1. We provide one-stop power supply solutions to save customers design time and cost:
--- Package design/Shell 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 quality service:
- Fast delivery within 10 days of stock
- 8-hour response and 48-hour solution
4. The experienced R&D team has become the customer's professional power solution consultant:
----Integrated Battery Test Center (safe and reliable test)
----Strong ODM capabilities to meet the needs of customized design
Customer first
24-hour online service to solve any order problems for you!
