Since the size of the 18650 battery is fixed, "18" represents the diameter, "65" represents the height, and "0" represents the cylindrical shape. How much mAh can the maximum capacity of the 18650 lithium battery be is still a question worth discussing, so it has been concerned by many practitioners. In recent years, the technology of various manufacturers in China has improved, and continuous experimental research and development, The capacity has also gradually increased. The laboratory has been able to produce 18650 batteries with a capacity of more than 3500mAh, but the stability and consistency are not good, and the trend of mass production cannot be formed for the time being. If someone says someone has 3500, 4000mAh, it is a lie, you will know the price. Now the large-capacity 18650 lithium battery bought in batches on the market is 2950mAh, and this capacity battery is also called 3000mAh by others. At present, the battery in the capacity range of 2200mAh-2600mAh is relatively stable, and the technology is relatively mature in all aspects. If it is a battery pack, it is best not to use a high-capacity battery. It is not a cost-effective solution in terms of cost performance or the service life of the battery pack after being assembled. Therefore, the higher the battery capacity, the more unstable it will be. .

The battery pack needs to be customized according to different products used in different working environments and fields. If the product is a medium-to-high-end product, the battery can choose imported batteries from big brands such as: Sanyo, Panasonic, etc. There are also many small-scale battery manufacturers in China. The batteries produced may have some fake labels. If you are too sensitive to the price, you can choose 1800mah-2600mAh capacity batteries produced by regular domestic manufacturers such as BYD and Dongguan Hongwei Energy. Most application fields have different current and time requirements, so most power supply batteries are presented as battery packs. When choosing a battery pack, you should consider the consistency, stability, safety, and each set of batteries. Each battery in the battery must be matched in all aspects, such as the same voltage, the same internal resistance, and the same capacity. These indicators are very important.