Reasons why poor-quality 18650 batteries flood the mobile power market

Inferior 18650 batteries are flooding the mobile power market. Many companies that do mobile power customers call the 186502600mah capacity quotation. The price we often quote imported 18650 cells, because its stability, quality and consistency are obvious to all, but the other party said, don’t Imported, when I quoted the lowest price for processing, the other side said it was expensive! Why are mobile power sources too expensive? Because many mobile power sources with false capacity rely on low-cost competition and the products have huge profits, our company only processes one product battery, Recycling is unavailable, and the balance performance is consistent with poor battery performance B product C, so the cost will certainly not be cheap, so customers we do not choose their cooperation, because our safe and stable processing and marketing concepts are always ranked first. In August of this year, the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China conducted random inspections on 32 batches of mobile power supply samples. Therefore, choosing 18650 batteries to create a safe mobile power source has become the choice of many consumers. We hope this article can help users who are swaying between these two products make a decision, and we also hope to promulgate national standards for mobile power supplies as soon as possible to regulate the current mixed market. Do not get me wrong, DIY portable power supply, d-i-y mobile power supply technology is not high. The essence of this type of product is the 18650 battery box. Compared with the standard mobile power bank with built-in 18650 battery, the biggest feature of this product is that users can purchase any combination of 18650 batteries with different capacities by themselves (Figure 2), such as the combination of 2200mAh×3, 2600mAh×3, 3400mAh×3 , Can obtain different capacities from 6600mAh to 10200mAh. When the battery capacity is obviously depleted due to frequent use, you can buy the 18650 battery again to make the battery box full of vitality. The problem is that the 18650 battery can be replaced at will according to the relevant experience of DIY. The semi-finished product of the 18650 battery has strong plasticity and the surface should be better than the finished product. But why is this type of product still a niche choice? The answer lies in the replaceable 18650 battery. The capacity of a single 18650 battery ranges from 1800mAh to 3400mAh, because it does not have the fluidity of AAno. 5. Batteries can only be purchased at (relatively speaking) unregulated computer stores or e-commerce websites such as Taobao. The problem is that the quality of 18650 batteries is uneven, such as A (good product), B (medium product), C (defective product). Recycled used batteries and high imitation models of counterfeit foreign brands are also not uncommon (Figure 3). For ordinary consumers, it is very difficult to buy product batteries at low prices. Once you purchase a C product or a defective product, there will be serious security risks. When choosing 18650 battery as a semi-finished mobile power source, you must choose a battery of the same brand and capacity, otherwise it will cause safety hazards such as different battery capacity and reverse charging. The biggest advantage of finished products over semi-finished products is their lower prices. Mobile power supply manufacturers are buying 18650 batteries in tens of thousands or even hundreds of thousands in wholesale, and the cost is naturally lower than retail channels. Take a product 18650 battery as an example, the price of a 2600mAh single cell is between 15 yuan and 20 yuan, and it will cost at least 60 yuan to buy four cells. Correspondingly, take Xiaomi’s 10400mAh mobile power supply as an example. It is also equipped with 4 2600mAh 18650 batteries, but the price is only 69 yuan, and it also includes peripheral components such as casing, protection circuit, and charging cable (Figure 4), which is undoubtedly more valuable. However, the finished product of brand mobile power also has a virtual standard that cannot be ignored. For example, if a product is clearly labeled as 10000mAh, its actual discharge power may only be 8000mAh, because it uses a 2000mAh18650 battery that is a fake 2500mAh18650 battery. In addition, the mobile power shell of the finished brand is usually not removable. It is glued between the shells (only violent removal). Once the internal battery life is exhausted, only a new one can be purchased, which is quite wasteful. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: Analyze the development status of electric vehicle batteries