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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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This is the model 3.2V 280AH solar energy storage system Lifepo4 battery. Well-known RP brand, the battery has 6000 cycles, has the original QR code, the quality is very good, the actual capacity is higher than the specification, can be as high as 285AH or more, it has 4000 cycles of DOD80%, and the internal resistance is less than 0.25mΩ. Adopt square aluminum shell structure, safe explosion-proof and no leakage. It has a wide range of applications and can be connected in series or in parallel to make 12V24V48V or even larger battery packs. It can be used for various electric vehicle, home energy storage, communication energy storage and solar energy storage off-grid needs.
| # | 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. |
To better ensure the safety of your goods, professional, environmentally friendly, convenient and efficient packaging services will be provided.
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
We provide one-stop battery power solutions, including cell selection, battery pack design, PCM/BMS design, battery pack assembly, OEM packaging and after-sales service.
Customer first
24-hour online service to solve any order problems for you!
