How to weld 18650 battery and battery pack?

18650 batteries should be packed into battery packs to pay attention to the following points: 1. The batteries are arranged neatly, which is convenient for future maintenance. It is best to use a standard 18650 battery card holder. 2. The welding is good. The most common welding method in the market is to use a nickel welder for spot welding. You can also use an electric soldering iron. The soldering points are in good contact. 3. After welding, the lines of each battery group must be clean. 4. Waterproof and insulated. It is best to cut a piece of barley paper or use asbestos. 5. The most important point is before welding. The internal resistance of the battery, the current voltage error should not exceed 0.05V! If possible, add a special protection board for lithium-ion batteries to prevent overshoot and overdischarge. 6. After welding, measure whether the voltage of each circuit is good. 7. After the newly assembled battery pack has been used for a period of time, check the battery voltage in groups. This is Assemble all the materials for a set of 18650 electric vehicle lithium-ion battery, including stainless steel battery box. This is the accessory material, wire tape heat shrinkable film, and a voltmeter. The voltmeter is installed on the battery box to determine the battery level. Separator and fixed 18650 battery There must be a protective plate for the lithium-ion battery. Otherwise, the separator and the bracket for fixing the 18650 battery will be scrapped. The lithium-ion battery must have a protective plate, otherwise the lithium-ion battery must have a protective plate, otherwise it will be scrapped. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete the previous article: How about the correct use of power lithium ion batteries?