1. Capacity

　　We know that capacity is a hot spot of 18650 cells that most novice users pay most attention to. Usually, the higher the capacity, the more expensive the price is. We know that the most stable battery capacity range of the 18650 battery cell market is about 2200-3600mah, and the highest battery capacity can be measured at 3600mah. Therefore, when you buy 18650 cells every day, you must choose a solution that is suitable for your power supply needs. It is not a blind pursuit of high-capacity 18650 cells.

　　2. Internal resistance

　　We know that at present, there are not many household devices for testing the capacity and internal resistance of the 18650 cell, and for the vast majority of ordinary families, there is not so much time to pay attention to the real parameters of the 18650 cell. However, for purchasers engaged in the 18650 cell procurement business, the range of internal resistance can help to obtain the final price of 18650 cells more accurately. Generally, the larger the internal resistance is, the smaller the capacity is. For the application environment with high power requirements, the resistance value is relatively small, and the price is naturally relatively high. Therefore, another factor affecting the price of 18650 cell is its resistance value.

　　3. Brand

　　When purchasing polymer lithium batteries, you should look for well-known brands. The quality of batteries can be guaranteed. Although many small brands of batteries are cheap, they have short life and unstable quality.

　　High quality 18650 low temperature lithium battery

　　Product No.: 17AQ022-01

　　Cell model: 18650/11.1V/2000mAh

　　Battery specification: 18650-3S3P/11.1V/6000mAh

　　Product size: 173 × seventy-seven × 20mm(Max)

　　Operating temperature: - 40 ℃~+60 ℃

Read recommendations:

Ni-MH AA600mAh 1.2V

Lithium battery thermal stability.3.7V lipo battery

Deadly Disadvantages of Graphene Batteries

18650 battery 1800mah

LR726 battery