Many customers asked ,it's grade A or B ,never used brand new? then write here to explain the definition of Grade A & B

A Grade :The end user place the order to the battery factory,cells manufactured based on end user's requirement.(Like Dimension/Cathode/Capacity/Dimension/Inner resistance/Package/Label) So.Follow user's requirement/Or manufacturing based on factory standard cell is called A

B Grade: Manufacturing with defect rate, In the lithium battery industry, there will be some difference in the defect rate between large to third line manufacturer. The first-line manufacturers can achieve about 2%, while the second and third-line manufacturers may achieve 5-10%. It is precisely because of this defect rate that the B product is created.B grade new cell just with capacity /size differences won't meet A user's requirements, but quality still durable. so many supplier gonna said it's grade A directly .or just sell it with lower capacity.

B on market with Brand New B/B cell removed from car

Brand New B: The first type is due to the excessive mass production of batteries, plus the limitation of storage and sales cycles, resulting in a large inventory backlog of products. Due to the long time no charge and discharge process, the electrical performance is greatly reduced compared with new products. However, from the comprehensive consideration of the difficulty of cost, recycling and processing, and the demand of the B product battery market, the battery cell factory will define this type of battery as a B product battery and sell it at the price of the B product battery. It has been used and assembled, so it is called a brand-new B product cell.

Brand New B:The second type is due to the needs of different customers in the mass production of batteries, which require uniform parameter matching of the Pack. For example, if N batteries are combined, then the voltage, capacity, and internal Resistance matching. For batteries that cannot be matched or exceed the range of these parameters, they cannot be sold to customers through normal channels. However, it is also a comprehensive consideration of the difficulty of cost, recycling and processing, and the needs of the B product battery market. , The battery cell factory will also define this type of battery cell as a B product battery, and sell it at the price of a B product battery. The same battery has not been used or used in groups, which inherently has a brand-new B product battery.

B grade cell from car module: Some domestic battery (battery product assembly) factories take into account the price problem and recycle foreign finished batteries, dismantle and recycle internal batteries and combine them into finished batteries. This type of cell is defined as a disassembled cell. In terms of appearance, the positive and negative caps have been spot-welded, and the appearance is not brand new, but after being assembled into a finished battery, users generally cannot distinguish it, but in terms of electrical performance, This type of battery has been used many times, so the cycle life is relatively far lower than that of the battery, and the user can’t distinguish it in the short period of time.

C grade Cell：Refurbished B grade cell ,To refilling liquid to make full capacity /Replace the scratched film/Replace the cathode

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