Due to the fixed size of the 18650 lithium-ion battery pack, its maximum capacity has always been concerned by many practitioners. In recent years, various manufacturers have improved their technology and their production capacity has also increased accordingly. Samsung, Panasonic, LG, Sony and Toshiba can reach more than 3600 mAh, but the capacity range of 2600 ~ 3000 mAh is the most stable and consistent. If it is a lithium-ion battery pack, it is best not to use the highest capacity, not to mention the cost performance, and regardless of the service life of the battery pack, it is not very cost-effective, so it does not mean that the higher the battery capacity, the more stable and lasting.
Most application areas have different current and time requirements, so most power batteries appear in the form of lithium-ion battery packs. When choosing a battery pack, the consistency, stability and safety of the battery should be considered. These indicators are very important. It is worth noting that many buyers have a misunderstanding that the actual discharge current will be large if the capacity is high, but this is the opposite: 18650 lithium-ion battery packs are generally divided into capacity type and rate type, and capacity type is the key to reflecting large capacity , But the discharge current is generally lower than 1C, and the current is small; the rate type can discharge at a large current, but the capacity is low and the use time is short.
The high-capacity 18650 lithium-ion battery packs currently on the market are 2950 mAh, and batteries with this capacity are also known as 3000 mAh. At present, the batteries in the capacity range of 2200mAh-2600mAh are relatively stable, and the technologies in all aspects are relatively mature.
Finally, under the same system, the high capacity of 18650 lithium-ion batteries will bring negative use of high prices, so the balance between capacity and price is very important. The price of 18650 lithium-ion batteries is directly proportional to the capacity. The greater the capacity, the greater the energy efficiency ratio, and the more raw materials used, so the price will be more expensive. The general price is 10-30 yuan per battery. The capacity of the 18650 lithium-ion battery pack is an important selling point for manufacturers. In addition, the brand of the same capacity 18650 lithium ion battery is also a factor affecting the price. Generally speaking, the price of imported brands is higher than that of domestic brands of the same type. As mentioned earlier, the key factor in determining the capacity of the 18650 lithium-ion battery is the structure of the raw material. Therefore, from a positive perspective, the prices of lithium cobalt oxide, lithium manganate, ternary materials and lithium iron phosphate will be different.
Due to the dominant price of capacity, the capacity of 18650 lithium-ion batteries on the market will be falsely labeled. For example, marking an 18650-cell lithium-ion battery with a capacity of 2200 mAh as 2600 mAh is an act of deceiving consumers. Unqualified capacity is often caused by man-made nutrition, and users are looking for genuine manufacturers' brands. Whether the capacity of the 18650 lithium-ion battery meets the standard will not only affect the user experience, but will also test Canadian manufacturers in the long run. When consumers buy batteries, there is no need to entangle with foreign original batteries, because domestic packaging plants will also use imported lithium-ion battery packs, and their 18650 lithium-ion battery capacity is no different. The important thing is that the capacity of these 18650 lithium-ion batteries is real.