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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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Rechargeable lithium battery 3.2V 280AH solar panels and solar batteries lifepo4 280ah cell
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. |
| 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. |
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
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.
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.
3. 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.
4. 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.
5. 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.
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!
