What is the difference between domestic and imported 18650 lithium batteries?

Source: 2020 - 04 - 19 19:58 hits: generally speaking, if you want to choose lithium electric tools, in fact, the vast majority of people, one of the most concern should be to lithium batteries, and the vast majority of people will be more inclined to choose when choose import lithium battery, it is the main reason for this compared with the current domestic battery, there is a very obvious advantages, this is the biggest difference, the following will take you to understand the difference between domestic and imported 18650 lithium batteries. Domestic import 18650 lithium batteries, production from the point of view of production, import and domestic relatively close to the battery voltage 10 day, after a full charge will be accelerated test, after testing, import the battery voltage is still to maintain consistent, and domestic battery will happen most larger differences, as well as the emergence of these differences tend to reduce the battery life is fast, discharge in the whole process is also easy to cause the danger of fire hidden trouble. Therefore, the difference of production may be the main reason for the public choose import lithium battery. Second, the service life of the battery itself is the shortest life battery, and the domestic 18650 lithium-ion batteries, even under the same brand production, also is different batches, so in the life has a lot of difference, the vast majority of import batteries can maintain the same life. 3. Vibration reduction performance under normal circumstances, the battery of anti vibration performance test time is about 90 minutes. After this test, we will find import battery performance and no obvious change. 50% and domestic battery internal circuit, and cannot be used directly, the remaining 50% and 20% internal resistance is too large, there is no way to use, but in a battery, even if that happens, as long as there is a battery, battery can't use again, therefore, from the vibration performance of foreign cells than some Chinese, so this is the difference between domestic and imported 18650 lithium batteries. 4. Self-discharge performance under normal circumstances, the battery after one year, import battery remaining capacity can reach 88% or more. After charging, capacity is up to 95%. And more domestic lithium battery, may place the longer, the greater the difference, even 20% of the battery capacity directly reduced to below 70%, only after charging back to around 90%. Low temperature discharge performance under the condition of low temperature environment, domestic 18650 lithium batteries battery can't drive machine work, and import lithium battery in this relatively poor conditions can still drive machines work. Although work time is not long, but it compared with domestic battery, or more excellent and outstanding. 6, ability, capacity difference is the difference between the two. A typical lithium battery capacity is about 1200 ma, but a foreign battery capacity can reach 5000 ma. Therefore, the difference between domestic and imported 18650 lithium batteries and difference is bigger. In general, also suggest that we choose to import batteries, but the price would be more expensive, after all, it is not easy to import channels, the above content are for reference only.