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Product Details:
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| Nominal Capacity: | 280AH | Charge / Discharge Current: | 0.5 C/0.5 C |
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| Nominal Voltage: | 3.2V | Rated Capacity: | 280K |
| AC Impedance Resistance: | ≤0.25mΩ | Max Charge Current: | 1C |
| Charging Temperature: | 0℃~55℃ | Storage Humidity: | <90% |
| Self^discharge Rate Per Month: | <3%/month | Cycle Life: | 6000times |
| Size: | 172*208*72mm | Weight: | 5.6KG |
| High Light: | OEM Rechargeable Lithium Ion EV 3.2V 280K,OEM bicycle lithium battery EV 3.2V 280K,bicycle lithium battery pack EV 3.2V 280K |
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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 | ||
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. |
Product Description
(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
Application areas
1. Motorhomes, caravans, electric bicycles/motorcycles/scooters, golf carts/baby strollers,
2. Solar energy system, wind energy system, household energy storage system, backup system and UPS
3. Modal equipment, consumer electronics, power tools and engine starting batteries,
4. Flashlights, LED emergency lights, solar street lights, decorative lighting, yachts, lawn mowers, etc.
Shenzhen Baidun New Energy Co., Ltd. is a professional company focusing on environmental protection Lifepo4 batteries, integrating R&D, manufacturing and sales. Our company has two factories, located in Dongguan and Huizhou, Guangdong Province, and has 12 years of industry experience. The main products are lithium iron phosphate batteries with different capacities, lithium titanate batteries, ternary lithium batteries, battery packs and photovoltaics. Our batteries are widely used in photovoltaic energy storage, communication equipment, signal systems, emergency lighting systems, security systems, telecommunications, solar and wind energy storage systems, backup power supplies for fire-fighting equipment, portable digital products, and household energy storage industries.
We respect integrity and professionalism, always take high safety, high quality and environmental protection as our core values, and assume social responsibility!
Bai Dun, always here! Is your truly successful business partner! Create a win-win situation with you and your company for a better future!
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, UL.
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
Baidun has always adhered to the business philosophy of high safety, high quality and environmental protection as its core values. Customer-centric, with excellent quality, competitive price, first-class craftsmanship, safe packaging and timely delivery. 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!
Customer first
24-hour online service to solve any order problems for you!
Contact Person: Olivia Lee
Tel: +86 13609052971
