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A-grade battery batteries are generally used by the battery factory to place orders directly to the LiFePO4 battery factory, which arranges production according to the factory's production capacity and technical capability, and finally makes the battery and delivers it to the customer after a series of battery manufacturing processes.
Grades of LiFePO4 battery
A Grade LiFePO4 batteries
Grade A is the title of the high-quality standard of the battery. Grade A LiFePO4 battery rated capacity star reaches the predetermined value, the internal resistance is lower than the specified value, the appearance and performance are qualified, and its battery material, technology, energy storage, steady charge and discharge, specification parameters, and constant temperature standard are the high-quality standard of the industry, and usually sold at a higher price.
A-grade battery batteries are generally used by the battery factory to place orders directly to the LiFePO4 battery factory, which arranges production according to the factory's production capacity and technical capability, and after a series of battery manufacturing processes, finally makes the battery and delivers it to the customer. Before placing an order, the battery production factory will generally communicate the parameters of battery capacity, thickness, length, width, etc. Then the battery made exactly according to the standards of the order is called an A product.
Product parameters
| Model | HS-12.8V300Ah |
| Application area | Outdoor and indoor UPS and battery back up systems； Portable and cordless household appliances； Medical equipment； Motorcycles, toy cars； Camping trailers, RVs, etc. Lighting equipment, emergency lights, etc. And many other applications |
| Cell Type | LiFePO4 |
| Volt | 12.8V |
| Capacity | 300Ah |
| Charge Voltage | 14.6V |
| Maximum Continuous Charging | 300A |
| Maximum Continuous Discharge Current | 300A |
| Weight | 32.3KG |
| Size | 520*269*220mm |
B Grade LiFePO4 batteries
For any lithium iron phosphate factory production products, there must be a defective rate. Then the defective rate determines the vitality of a factory, in the lithium battery industry, purely by technology, ingredients, etc., the first-line lithium battery and third-line lithium battery factory will not have a big gap, but in the production process and production process, the defective rate gap is very large, first-line manufacturers can do about 2%, while the second and third line may do 5-10%.
Because of this defective rate, B Grade Lithium Battery is created, and there are two types of B Grade Lithium Battery.
Appearance B Grade batteries
The appearance of B grade products needs special attention is the bump, bump marks, because these are generally caused by internal impurities, if the solar battery working current is large, the bump, bump marks will become the current, heat concentration point, easily leading to heat shrinkage of the isolation film, resulting in internal short circuit, and ultimately affect the life of the entire battery pack.
Performance B Grade batteries
Performance B grade products, mainly low capacity, low voltage, high internal resistance, etc. Performance B grade batteries have a great impact on the use of energy storage batteries. Performance B grade directly affects the consistency of the battery pack, the same low capacity battery, but also because of low capacity reasons are different, resulting in inconsistent performance after the cycle, and ultimately drag the battery pack.
C Grade LiFePO4 batteries
If B grade batteries are placed in the warehouse for more than 8 months, if they are still not shipped, they can be called C grade, C grade batteries are due to long placement time, their capacity is generally only about 50-60 of the same type of A grade batteries, good ones can reach 70%. C grade batteries are less safe, in addition, C grade batteries are not durable, and then after several cycles of charging, the performance is greatly reduced.
