What should be paid attention to when assembling 18650.
1. The neatly arranged batteries will facilitate future maintenance. It is best to use a standard 18650 battery tray.
2. The welding is good, and the most common welding method on the market is to use a nickel welding machine for spot welding. You can also use an electric soldering iron, and the solder joints have good contact.
3. After welding, the wiring of each group of batteries must be organized clearly.
4. Ensure waterproofing and insulation, preferably by cutting a piece of barley paper or using asbestos material.
5. The most important point is that the internal resistance of the battery before welding and the current voltage error should not exceed 0.05V! If possible, please add a lithium battery manufacturer's dedicated protection board to prevent overcharging and overdischarging.
6. After welding, measure whether the voltage of each circuit is good.
After using the newly assembled battery pack for a period of time, it is necessary to group and test the voltage of the batteries.
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